Milliken Creek
Milliken Creek is a Napa River tributary within the historical range of steelhead.
Location: 38.31736, -122.27473
At Milliken Creek at Silverado, the creek is 1.14 ft deep at the gage and 54.9 °F. Daily highs averaged 59.0 °F from Oct 20 through Oct 26, which is good for young steelhead. At Milliken Creek at Atlas Peak Rd, the creek is 0.44 ft deep at the gage.
Milliken Creek at Silverado
Water level
1.14 ft
Steady
Reading
Water temperature
54.9 °F
Falling 0.7 °F in 24 h
Reading
For young steelhead
7-day average high
59.0 °F (Oct 20–26)
Good for young steelhead
The band rates the 7-day average of the daily high temperature, never a single reading. Biological thresholds from published research (EPA 2003 and others), not legal limits. About this data
Thresholds are pending scientific review.
Last reading
The latest water level reading is 16 hours old. The gage may be offline or waiting to upload.
Milliken Creek at Atlas Peak Rd
Water level
0.44 ft
Steady
Reading
Last reading
This water year at a glance
Milliken Creek at Silverado
Days stressful
17 days
Oct 1–27
Days when the 7-day average daily high was above 60.8 °F and below 71.6 °F — stressful for young steelhead.
Days dangerous
0 days
Oct 1–27
Days when the 7-day average daily high was at or above 71.6 °F — dangerous for young steelhead.
Time in each band
Good 35% Stressful 65% Dangerous 0%
Each block of the bar is 5% of the rated days.
Oct 1–27
Of the days the bands could rate in this window, 35% were good for young steelhead, 65% were stressful, and 0% were dangerous. A day without enough readings to rate is in none of the three.
Hottest day
67.1 °F
On Oct 6, 2026
Oct 1–27
The highest daily maximum water temperature of the window. The steelhead bands rate the 7-day average of this value, never a single day.
Heat spikes
0 days with heat spikes
Oct 1–27
Days when a daily high temperature reached the acute limit for steelhead, 75.2 °F. A heat spike is one hot afternoon, not a week of them.
Lowest water level
0.92 ft
On Oct 5, 2026
Oct 1–27
The lowest daily average water level of the window. It is depth at the sensor, not a surveyed river stage, so it compares with this gage's other days only.
Biggest 24-hour rise
0.22 ft
On Oct 22, 2026, peaking Oct 22, 2026, 11:00 AM PDT
Oct 1–27
The largest rise in water level over any 24 hours in the window — a storm-response indicator.
Data completeness
100%
26 of 26 days
Oct 1–27
Days with enough readings to count as complete, out of the days elapsed in the window so far.
Milliken Creek at Atlas Peak Rd
Lowest water level
0.42 ft
On Oct 25, 2026
Oct 1–27
The lowest daily average water level of the window. It is depth at the sensor, not a surveyed river stage, so it compares with this gage's other days only.
Biggest 24-hour rise
0.25 ft
On Oct 15, 2026, peaking Oct 15, 2026, 8:55 AM PDT
Oct 1–27
The largest rise in water level over any 24 hours in the window — a storm-response indicator.
Data completeness
0%
0 of 26 days
Oct 1–27
Days with enough readings to count as complete, out of the days elapsed in the window so far.
Is the water cool enough for steelhead?
At Milliken Creek at Silverado, over the last 90 days, the 7-day average daily high was in the good range on 9 days, in the stressful range on 73 days, and in the dangerous range on 7 days.
Thresholds are pending scientific review.
Temperature bands for young steelhead
- Good Good for young steelhead — at or below 60.8 °F
- Stressful Stressful: slower growth, more disease — above 60.8 °F and below 71.6 °F
- Dangerous Dangerous: can kill steelhead — at or above 71.6 °F
- Federal recovery-plan limit — 68.0 °F
The bold line is the 7-day average of daily high temperatures, the measure the bands are based on. The thin line is the daily maximum: each day's high, including today's provisional "so far today" value. A biological band is never applied to the daily maximum. Thresholds and bands are drawn once and apply to every gage; each gage is its own line, told apart by dash style and its end label, never by color alone.
Biological thresholds from published research (EPA 2003 and others), not legal limits. About this data
Show the data for Milliken Creek at Silverado as a table
| Date | Daily high | 7-day average daily high | Effective optimal limit | Band |
|---|---|---|---|---|
| Jul 30, 2026 | 71.6 °F | 71.6 °F | 60.8 °F | Stressful |
| Jul 31, 2026 | 71.6 °F | 71.5 °F | 60.8 °F | Stressful |
| Aug 1, 2026 | 72.2 °F | 71.6 °F | 60.8 °F | Stressful |
| Aug 2, 2026 | 72.8 °F | 71.7 °F | 60.8 °F | Dangerous |
| Aug 3, 2026 | 72.9 °F | 72.0 °F | 60.8 °F | Dangerous |
| Aug 4, 2026 | 72.4 °F | 72.2 °F | 60.8 °F | Dangerous |
| Aug 5, 2026 | 71.7 °F | 72.2 °F | 60.8 °F | Dangerous |
| Aug 6, 2026 | 71.0 °F | 72.1 °F | 60.8 °F | Dangerous |
| Aug 7, 2026 | 70.7 °F | 72.0 °F | 60.8 °F | Dangerous |
| Aug 8, 2026 | 70.4 °F | 71.7 °F | 60.8 °F | Dangerous |
| Aug 9, 2026 | 70.7 °F | 71.4 °F | 60.8 °F | Stressful |
| Aug 10, 2026 | 70.4 °F | 71.0 °F | 60.8 °F | Stressful |
| Aug 11, 2026 | 69.7 °F | 70.6 °F | 60.8 °F | Stressful |
| Aug 12, 2026 | 69.0 °F | 70.3 °F | 60.8 °F | Stressful |
| Aug 13, 2026 | 67.9 °F | 69.8 °F | 60.8 °F | Stressful |
| Aug 14, 2026 | 66.9 °F | 69.3 °F | 60.8 °F | Stressful |
| Aug 15, 2026 | 67.9 °F | 68.9 °F | 60.8 °F | Stressful |
| Aug 16, 2026 | 68.5 °F | 68.6 °F | 60.8 °F | Stressful |
| Aug 17, 2026 | 68.8 °F | 68.4 °F | 60.8 °F | Stressful |
| Aug 18, 2026 | 68.6 °F | 68.2 °F | 60.8 °F | Stressful |
| Aug 19, 2026 | 68.8 °F | 68.2 °F | 60.8 °F | Stressful |
| Aug 20, 2026 | 68.6 °F | 68.3 °F | 60.8 °F | Stressful |
| Aug 21, 2026 | 69.0 °F | 68.6 °F | 60.8 °F | Stressful |
| Aug 22, 2026 | 68.8 °F | 68.7 °F | 60.8 °F | Stressful |
| Aug 23, 2026 | 69.3 °F | 68.9 °F | 60.8 °F | Stressful |
| Aug 24, 2026 | 69.5 °F | 69.0 °F | 60.8 °F | Stressful |
| Aug 25, 2026 | 69.3 °F | 69.1 °F | 60.8 °F | Stressful |
| Aug 26, 2026 | 69.0 °F | 69.1 °F | 60.8 °F | Stressful |
| Aug 27, 2026 | 69.8 °F | 69.2 °F | 60.8 °F | Stressful |
| Aug 28, 2026 | 67.8 °F | 69.1 °F | 60.8 °F | Stressful |
| Aug 29, 2026 | 67.4 °F | 68.9 °F | 60.8 °F | Stressful |
| Aug 30, 2026 | 67.3 °F | 68.6 °F | 60.8 °F | Stressful |
| Aug 31, 2026 | 66.9 °F | 68.2 °F | 60.8 °F | Stressful |
| Sep 1, 2026 | 67.1 °F | 67.9 °F | 60.8 °F | Stressful |
| Sep 2, 2026 | 65.9 °F | 67.5 °F | 60.8 °F | Stressful |
| Sep 3, 2026 | 64.5 °F | 66.7 °F | 60.8 °F | Stressful |
| Sep 4, 2026 | 66.2 °F | 66.5 °F | 60.8 °F | Stressful |
| Sep 5, 2026 | 65.9 °F | 66.3 °F | 60.8 °F | Stressful |
| Sep 6, 2026 | 65.7 °F | 66.0 °F | 60.8 °F | Stressful |
| Sep 7, 2026 | 66.4 °F | 66.0 °F | 60.8 °F | Stressful |
| Sep 8, 2026 | 67.3 °F | 66.0 °F | 60.8 °F | Stressful |
| Sep 9, 2026 | 68.5 °F | 66.4 °F | 60.8 °F | Stressful |
| Sep 10, 2026 | 70.0 °F | 67.1 °F | 60.8 °F | Stressful |
| Sep 11, 2026 | 68.1 °F | 67.4 °F | 60.8 °F | Stressful |
| Sep 12, 2026 | 67.6 °F | 67.7 °F | 60.8 °F | Stressful |
| Sep 13, 2026 | 66.4 °F | 67.8 °F | 60.8 °F | Stressful |
| Sep 14, 2026 | 66.2 °F | 67.7 °F | 60.8 °F | Stressful |
| Sep 15, 2026 | 66.2 °F | 67.6 °F | 60.8 °F | Stressful |
| Sep 16, 2026 | 65.9 °F | 67.2 °F | 60.8 °F | Stressful |
| Sep 17, 2026 | 65.0 °F | 66.5 °F | 60.8 °F | Stressful |
| Sep 18, 2026 | 65.4 °F | 66.1 °F | 60.8 °F | Stressful |
| Sep 19, 2026 | 65.9 °F | 65.9 °F | 60.8 °F | Stressful |
| Sep 20, 2026 | 64.5 °F | 65.6 °F | 60.8 °F | Stressful |
| Sep 21, 2026 | 63.8 °F | 65.3 °F | 60.8 °F | Stressful |
| Sep 22, 2026 | 64.2 °F | 65.0 °F | 60.8 °F | Stressful |
| Sep 23, 2026 | 65.9 °F | 65.0 °F | 60.8 °F | Stressful |
| Sep 24, 2026 | 66.4 °F | 65.2 °F | 60.8 °F | Stressful |
| Sep 25, 2026 | 65.9 °F | 65.2 °F | 60.8 °F | Stressful |
| Sep 26, 2026 | 65.0 °F | 65.1 °F | 60.8 °F | Stressful |
| Sep 27, 2026 | 65.0 °F | 65.2 °F | 60.8 °F | Stressful |
| Sep 28, 2026 | 63.8 °F | 65.2 °F | 60.8 °F | Stressful |
| Sep 29, 2026 | 64.5 °F | 65.2 °F | 60.8 °F | Stressful |
| Sep 30, 2026 | 65.2 °F | 65.1 °F | 60.8 °F | Stressful |
| Oct 1, 2026 | 64.9 °F | 64.9 °F | 60.8 °F | Stressful |
| Oct 2, 2026 | 65.0 °F | 64.8 °F | 60.8 °F | Stressful |
| Oct 3, 2026 | 65.9 °F | 64.9 °F | 60.8 °F | Stressful |
| Oct 4, 2026 | 65.9 °F | 65.0 °F | 60.8 °F | Stressful |
| Oct 5, 2026 | 66.9 °F | 65.5 °F | 60.8 °F | Stressful |
| Oct 6, 2026 | 67.1 °F | 65.8 °F | 60.8 °F | Stressful |
| Oct 7, 2026 | 66.7 °F | 66.1 °F | 60.8 °F | Stressful |
| Oct 8, 2026 | 66.2 °F | 66.3 °F | 60.8 °F | Stressful |
| Oct 9, 2026 | 65.4 °F | 66.3 °F | 60.8 °F | Stressful |
| Oct 10, 2026 | 64.7 °F | 66.1 °F | 60.8 °F | Stressful |
| Oct 11, 2026 | 62.3 °F | 65.6 °F | 60.8 °F | Stressful |
| Oct 12, 2026 | 61.3 °F | 64.8 °F | 60.8 °F | Stressful |
| Oct 13, 2026 | 60.1 °F | 63.8 °F | 60.8 °F | Stressful |
| Oct 14, 2026 | 59.9 °F | 62.8 °F | 60.8 °F | Stressful |
| Oct 15, 2026 | 60.4 °F | 62.0 °F | 60.8 °F | Stressful |
| Oct 16, 2026 | 61.3 °F | 61.4 °F | 60.8 °F | Stressful |
| Oct 17, 2026 | 60.9 °F | 60.9 °F | 60.8 °F | Stressful |
| Oct 18, 2026 | 60.4 °F | 60.6 °F | 60.8 °F | Good |
| Oct 19, 2026 | 60.1 °F | 60.4 °F | 60.8 °F | Good |
| Oct 20, 2026 | 59.4 °F | 60.3 °F | 60.8 °F | Good |
| Oct 21, 2026 | 58.7 °F | 60.2 °F | 60.8 °F | Good |
| Oct 22, 2026 | 58.7 °F | 59.9 °F | 60.8 °F | Good |
| Oct 23, 2026 | 60.4 °F | 59.8 °F | 60.8 °F | Good |
| Oct 24, 2026 | 59.4 °F | 59.6 °F | 60.8 °F | Good |
| Oct 25, 2026 | 58.5 °F | 59.3 °F | 60.8 °F | Good |
| Oct 26, 2026 | 58.2 °F | 59.0 °F | 60.8 °F | Good |
| Oct 27, 2026 (so far today) | 56.8 °F | — | 60.8 °F | No rating yet (so far today) |
Is the water healthy for steelhead?
Dissolved oxygen: data not available.
pH: data not available.
Turbidity: data not available.
Daily highs and lows
At Milliken Creek at Silverado, over the last 90 days, water temperature swung an average of 3.8 °F between night and day.
At Milliken Creek at Atlas Peak Rd, over the last 90 days, water level swung an average of 0.07 ft between night and day.
Show the data for Milliken Creek at Silverado as a table
| Date | Water temperature | Water level | Data | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Min | Mean | Max | Swing | Min | Mean | Max | Swing | ||
| Oct 14, 2026 | 55.9 °F | 58.0 °F | 59.9 °F | 4.0 °F | 0.99 ft | 1.00 ft | 1.02 ft | 0.03 ft | |
| Oct 15, 2026 | 56.4 °F | 58.5 °F | 60.4 °F | 4.0 °F | 1.01 ft | 1.02 ft | 1.04 ft | 0.03 ft | |
| Oct 16, 2026 | 57.1 °F | 59.3 °F | 61.3 °F | 4.1 °F | 1.01 ft | 1.03 ft | 1.06 ft | 0.05 ft | |
| Oct 17, 2026 | 57.1 °F | 59.2 °F | 60.9 °F | 3.8 °F | 1.02 ft | 1.04 ft | 1.06 ft | 0.03 ft | |
| Oct 18, 2026 | 57.0 °F | 58.9 °F | 60.4 °F | 3.4 °F | 1.01 ft | 1.03 ft | 1.04 ft | 0.03 ft | |
| Oct 19, 2026 | 57.8 °F | 58.8 °F | 60.1 °F | 2.2 °F | 1.02 ft | 1.04 ft | 1.07 ft | 0.05 ft | |
| Oct 20, 2026 | 56.4 °F | 58.1 °F | 59.4 °F | 2.9 °F | 1.02 ft | 1.04 ft | 1.07 ft | 0.05 ft | |
| Oct 21, 2026 | 57.1 °F | 58.0 °F | 58.7 °F | 1.6 °F | 1.03 ft | 1.05 ft | 1.10 ft | 0.07 ft | |
| Oct 22, 2026 | 57.5 °F | 58.1 °F | 58.7 °F | 1.2 °F | 1.04 ft | 1.12 ft | 1.25 ft | 0.21 ft | |
| Oct 23, 2026 | 58.2 °F | 59.0 °F | 60.4 °F | 2.2 °F | 1.12 ft | 1.16 ft | 1.20 ft | 0.08 ft | |
| Oct 24, 2026 | 56.3 °F | 57.9 °F | 59.4 °F | 3.1 °F | 1.10 ft | 1.12 ft | 1.15 ft | 0.05 ft | |
| Oct 25, 2026 | 55.2 °F | 57.1 °F | 58.5 °F | 3.3 °F | 1.10 ft | 1.11 ft | 1.12 ft | 0.02 ft | |
| Oct 26, 2026 | 55.2 °F | 56.8 °F | 58.2 °F | 2.9 °F | 1.10 ft | 1.13 ft | 1.17 ft | 0.07 ft | |
| Oct 27, 2026 | 54.9 °F | 55.8 °F | 56.8 °F | 1.9 °F | 1.14 ft | 1.14 ft | 1.16 ft | 0.02 ft | So far today: 15 of 48 readings so far |
Show the data for Milliken Creek at Atlas Peak Rd as a table
| Date | Water level | Data | |||
|---|---|---|---|---|---|
| Min | Mean | Max | Swing | ||
| Oct 14, 2026 | 1.49 ft | 1.52 ft | 1.69 ft | 0.20 ft | |
| Oct 15, 2026 | 1.47 ft | 1.51 ft | 1.72 ft | 0.25 ft | Incomplete day: 170 of 1440 readings |
| Oct 16, 2026 | 1.46 ft | 1.51 ft | 1.64 ft | 0.18 ft | Incomplete day: 186 of 720 readings |
| Oct 17, 2026 | 1.50 ft | 1.55 ft | 1.62 ft | 0.12 ft | Incomplete day: 186 of 720 readings |
| Oct 18, 2026 | 1.49 ft | 1.55 ft | 1.64 ft | 0.15 ft | |
| Oct 19, 2026 | 1.49 ft | 1.55 ft | 1.65 ft | 0.16 ft | Incomplete day: 190 of 1440 readings |
| Oct 20, 2026 | 1.51 ft | 1.56 ft | 1.63 ft | 0.12 ft | Incomplete day: 190 of 720 readings |
| Oct 21, 2026 | 1.52 ft | 1.55 ft | 1.62 ft | 0.10 ft | Incomplete day: 131 of 720 readings |
| Oct 22, 2026 | 0.44 ft | 0.45 ft | 0.47 ft | 0.03 ft | Incomplete day: 57 of 720 readings |
| Oct 23, 2026 | 0.42 ft | 0.44 ft | 0.47 ft | 0.05 ft | Incomplete day: 186 of 720 readings |
| Oct 24, 2026 | 0.41 ft | 0.43 ft | 0.46 ft | 0.05 ft | Incomplete day: 190 of 480 readings |
| Oct 25, 2026 | 0.41 ft | 0.42 ft | 0.43 ft | 0.02 ft | Incomplete day: 192 of 480 readings |
| Oct 26, 2026 | 0.41 ft | 0.42 ft | 0.44 ft | 0.03 ft | |
| Oct 27, 2026 | 0.42 ft | 0.43 ft | 0.44 ft | 0.02 ft | So far today: 168 of 102 readings so far |
Water level and temperature over time
At Milliken Creek at Silverado, over the last 7 days, water level ranged from 1.03 ft to 1.25 ft and temperature from 54.9 °F to 60.4 °F.
At Milliken Creek at Atlas Peak Rd, over the last 7 days, water level ranged from 0.41 ft to 1.62 ft.
Raw readings are in Recent readings and downloads.
Show the data for Milliken Creek at Silverado as a table
| Date | Water level | Water temperature | ||||
|---|---|---|---|---|---|---|
| Min | Mean | Max | Min | Mean | Max | |
| Oct 21, 2026 | 1.03 ft | 1.05 ft | 1.10 ft | 57.1 °F | 58.0 °F | 58.7 °F |
| Oct 22, 2026 | 1.04 ft | 1.12 ft | 1.25 ft | 57.5 °F | 58.1 °F | 58.7 °F |
| Oct 23, 2026 | 1.12 ft | 1.16 ft | 1.20 ft | 58.2 °F | 59.0 °F | 60.4 °F |
| Oct 24, 2026 | 1.10 ft | 1.12 ft | 1.15 ft | 56.3 °F | 57.9 °F | 59.4 °F |
| Oct 25, 2026 | 1.10 ft | 1.11 ft | 1.12 ft | 55.2 °F | 57.1 °F | 58.5 °F |
| Oct 26, 2026 | 1.10 ft | 1.13 ft | 1.17 ft | 55.2 °F | 56.8 °F | 58.2 °F |
| Oct 27, 2026 (so far today) | 1.14 ft | 1.14 ft | 1.16 ft | 54.9 °F | 55.8 °F | 56.8 °F |
Show the data for Milliken Creek at Atlas Peak Rd as a table
| Date | Water level | ||
|---|---|---|---|
| Min | Mean | Max | |
| Oct 21, 2026 | 1.52 ft | 1.55 ft | 1.62 ft |
| Oct 22, 2026 | 0.44 ft | 0.45 ft | 0.47 ft |
| Oct 23, 2026 | 0.42 ft | 0.44 ft | 0.47 ft |
| Oct 24, 2026 | 0.41 ft | 0.43 ft | 0.46 ft |
| Oct 25, 2026 | 0.41 ft | 0.42 ft | 0.43 ft |
| Oct 26, 2026 | 0.41 ft | 0.42 ft | 0.44 ft |
| Oct 27, 2026 (so far today) | 0.42 ft | 0.43 ft | 0.44 ft |
Every day at a glance
Milliken Creek at Silverado
In the last 12 months, the 7-day average daily high was above 68.0 °F on 87 complete days, mostly in Jul 2026, Aug 2026, and Jun 2026.
Show the monthly summaries for water year 2027 at Milliken Creek at Silverado
| Month | Good days | Stressful days | Dangerous days | Mean 7-day average daily high (°F) | Mean daily high (°F) | Mean water level (ft) |
|---|---|---|---|---|---|---|
| Oct 2026 | 9 | 17 | 0 | 62.9 °F | 62.2 °F | 1.01 ft |
Show every day of water year 2027 as a table at Milliken Creek at Silverado
| Date | 7-day average daily high (°F) | Band | Daily high (°F) | Daily mean water level (ft) |
|---|---|---|---|---|
| Oct 1, 2026 | 64.9 °F | Stressful | 64.9 °F | 0.92 ft |
| Oct 2, 2026 | 64.8 °F | Stressful | 65.0 °F | 0.93 ft |
| Oct 3, 2026 | 64.9 °F | Stressful | 65.9 °F | 0.94 ft |
| Oct 4, 2026 | 65.0 °F | Stressful | 65.9 °F | 0.93 ft |
| Oct 5, 2026 | 65.5 °F | Stressful | 66.9 °F | 0.92 ft |
| Oct 6, 2026 | 65.8 °F | Stressful | 67.1 °F | 0.93 ft |
| Oct 7, 2026 | 66.1 °F | Stressful | 66.7 °F | 0.93 ft |
| Oct 8, 2026 | 66.3 °F | Stressful | 66.2 °F | 0.94 ft |
| Oct 9, 2026 | 66.3 °F | Stressful | 65.4 °F | 0.94 ft |
| Oct 10, 2026 | 66.1 °F | Stressful | 64.7 °F | 0.95 ft |
| Oct 11, 2026 | 65.6 °F | Stressful | 62.3 °F | 0.96 ft |
| Oct 12, 2026 | 64.8 °F | Stressful | 61.3 °F | 0.98 ft |
| Oct 13, 2026 | 63.8 °F | Stressful | 60.1 °F | 0.99 ft |
| Oct 14, 2026 | 62.8 °F | Stressful | 59.9 °F | 1.00 ft |
| Oct 15, 2026 | 62.0 °F | Stressful | 60.4 °F | 1.02 ft |
| Oct 16, 2026 | 61.4 °F | Stressful | 61.3 °F | 1.03 ft |
| Oct 17, 2026 | 60.9 °F | Stressful | 60.9 °F | 1.04 ft |
| Oct 18, 2026 | 60.6 °F | Good | 60.4 °F | 1.03 ft |
| Oct 19, 2026 | 60.4 °F | Good | 60.1 °F | 1.04 ft |
| Oct 20, 2026 | 60.3 °F | Good | 59.4 °F | 1.04 ft |
| Oct 21, 2026 | 60.2 °F | Good | 58.7 °F | 1.05 ft |
| Oct 22, 2026 | 59.9 °F | Good | 58.7 °F | 1.12 ft |
| Oct 23, 2026 | 59.8 °F | Good | 60.4 °F | 1.16 ft |
| Oct 24, 2026 | 59.6 °F | Good | 59.4 °F | 1.12 ft |
| Oct 25, 2026 | 59.3 °F | Good | 58.5 °F | 1.11 ft |
| Oct 26, 2026 | 59.0 °F | Good | 58.2 °F | 1.13 ft |
| Oct 27, 2026 (so far today) | — | No rating yet (so far today) | 56.8 °F | 1.14 ft |
Milliken Creek at Atlas Peak Rd
The calendar colors each day by its average water level; there is no water temperature sensor at this gage, so it shows no biological bands.
Show the monthly summaries for water year 2027 at Milliken Creek at Atlas Peak Rd
| Month | Mean water level (ft) |
|---|---|
| Oct 2026 | 1.31 ft |
Show every day of water year 2027 as a table at Milliken Creek at Atlas Peak Rd
| Date | Daily mean water level (ft) |
|---|---|
| Oct 1, 2026 | 1.52 ft |
| Oct 2, 2026 | 1.50 ft |
| Oct 3, 2026 | 1.52 ft |
| Oct 4, 2026 | 1.50 ft |
| Oct 5, 2026 | 1.49 ft |
| Oct 6, 2026 | 1.50 ft |
| Oct 7, 2026 | 1.50 ft |
| Oct 8, 2026 | 1.50 ft |
| Oct 9, 2026 | 1.55 ft |
| Oct 10, 2026 | 1.49 ft |
| Oct 11, 2026 | 1.50 ft |
| Oct 12, 2026 | 1.51 ft |
| Oct 13, 2026 | 1.50 ft |
| Oct 14, 2026 | 1.52 ft |
| Oct 15, 2026 | 1.51 ft |
| Oct 16, 2026 | 1.51 ft |
| Oct 17, 2026 | 1.55 ft |
| Oct 18, 2026 | 1.55 ft |
| Oct 19, 2026 | 1.55 ft |
| Oct 20, 2026 | 1.56 ft |
| Oct 21, 2026 | 1.55 ft |
| Oct 22, 2026 | 0.45 ft |
| Oct 23, 2026 | 0.44 ft |
| Oct 24, 2026 | 0.43 ft |
| Oct 25, 2026 | 0.42 ft |
| Oct 26, 2026 | 0.42 ft |
| Oct 27, 2026 (so far today) | 0.43 ft |
The calendar colors by 7-day average daily high (7DADM)
- Good Good for young steelhead
- Stressful Stressful: slower growth, more disease
- Dangerous Dangerous: can kill steelhead
- Not enough data The day had too few readings for a 7-day average to be complete, so it is in no band.
- Federal recovery-plan limit — 68.0 °F
- Daily water level — this is the color scale the calendar uses; darker blue is deeper. Levels are continuous, so they carry no band.
7DADM is the mean of the daily maximum water temperature over seven consecutive complete local days. The tables above also print each day's maximum, labeled as its own statistic: a biological band is never applied to it (Issue #13).
Biological thresholds from published research (EPA 2003 and others), not legal limits. About this data
Thresholds are pending scientific review.
The calendar's own days, in words: the tables above are the same data. For the raw readings, see Recent readings and downloads.
This year compared with past years
Where the gage is
One marker for every gage of this stream; the same locations are written out beside the map.
Map data: © OpenStreetMap contributors · Report a map issue
The gages
- Milliken Creek at Silverado Location not yet available
- Milliken Creek at Atlas Peak Rd 38.3421°, -122.2648° View on OpenStreetMap of Milliken Creek at Atlas Peak Rd
The creek
Stream map coming soon — the stream's course has not been added yet.
Recent readings and downloads
192 readings, oldest first. Sorting and paging need JavaScript; every row is already here.
| Local time | UTC time | Gage | Water level (ft) | Water temperature (°F) |
|---|---|---|---|---|
| 2026-10-25T14:30:00Z | Milliken Creek at Silverado | 1.11 ft | 55.6 °F | |
| 2026-10-25T15:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.4 °F | |
| 2026-10-25T15:30:00Z | Milliken Creek at Silverado | 1.11 ft | 55.4 °F | |
| 2026-10-25T16:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.2 °F | |
| 2026-10-25T16:30:00Z | Milliken Creek at Silverado | 1.10 ft | 55.4 °F | |
| 2026-10-25T17:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.4 °F | |
| 2026-10-25T17:30:00Z | Milliken Creek at Silverado | 1.12 ft | 55.7 °F | |
| 2026-10-25T18:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.9 °F | |
| 2026-10-25T18:30:00Z | Milliken Creek at Silverado | 1.12 ft | 56.3 °F | |
| 2026-10-25T19:00:00Z | Milliken Creek at Silverado | 1.11 ft | 56.4 °F | |
| 2026-10-25T19:30:00Z | Milliken Creek at Silverado | 1.11 ft | 56.6 °F | |
| 2026-10-25T20:00:00Z | Milliken Creek at Silverado | 1.11 ft | 56.8 °F | |
| 2026-10-25T20:30:00Z | Milliken Creek at Silverado | 1.11 ft | 57.0 °F | |
| 2026-10-25T21:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.3 °F | |
| 2026-10-25T21:30:00Z | Milliken Creek at Silverado | 1.11 ft | 57.5 °F | |
| 2026-10-25T22:00:00Z | Milliken Creek at Silverado | 1.10 ft | 57.6 °F | |
| 2026-10-25T22:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.0 °F | |
| 2026-10-25T23:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.2 °F | |
| 2026-10-25T23:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.3 °F | |
| 2026-10-26T00:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.3 °F | |
| 2026-10-26T00:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.5 °F | |
| 2026-10-26T01:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.5 °F | |
| 2026-10-26T01:30:00Z | Milliken Creek at Silverado | 1.10 ft | 58.5 °F | |
| 2026-10-26T02:00:00Z | Milliken Creek at Silverado | 1.10 ft | 58.5 °F | |
| 2026-10-26T02:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.3 °F | |
| 2026-10-26T03:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.3 °F | |
| 2026-10-26T03:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.2 °F | |
| 2026-10-26T04:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.2 °F | |
| 2026-10-26T04:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.0 °F | |
| 2026-10-26T05:00:00Z | Milliken Creek at Silverado | 1.11 ft | 58.0 °F | |
| 2026-10-26T05:30:00Z | Milliken Creek at Silverado | 1.11 ft | 57.8 °F | |
| 2026-10-26T06:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.6 °F | |
| 2026-10-26T06:30:00Z | Milliken Creek at Silverado | 1.12 ft | 57.6 °F | |
| 2026-10-26T07:00:00Z | Milliken Creek at Silverado | 1.12 ft | 57.5 °F | |
| 2026-10-26T07:30:00Z | Milliken Creek at Silverado | 1.12 ft | 57.3 °F | |
| 2026-10-26T08:00:00Z | Milliken Creek at Silverado | 1.12 ft | 57.1 °F | |
| 2026-10-26T08:30:00Z | Milliken Creek at Silverado | 1.11 ft | 57.0 °F | |
| 2026-10-26T09:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.0 °F | |
| 2026-10-26T09:30:00Z | Milliken Creek at Silverado | 1.11 ft | 56.8 °F | |
| 2026-10-26T10:00:00Z | Milliken Creek at Silverado | 1.12 ft | 56.6 °F | |
| 2026-10-26T10:30:00Z | Milliken Creek at Silverado | 1.12 ft | 56.4 °F | |
| 2026-10-26T11:00:00Z | Milliken Creek at Silverado | 1.12 ft | 56.3 °F | |
| 2026-10-26T11:30:00Z | Milliken Creek at Silverado | 1.12 ft | 56.3 °F | |
| 2026-10-26T12:00:00Z | Milliken Creek at Silverado | 1.11 ft | 56.1 °F | |
| 2026-10-26T12:30:00Z | Milliken Creek at Silverado | 1.11 ft | 55.9 °F | |
| 2026-10-26T13:00:00Z | Milliken Creek at Silverado | 1.12 ft | 55.9 °F | |
| 2026-10-26T13:30:00Z | Milliken Creek at Silverado | 1.11 ft | 55.7 °F | |
| 2026-10-26T14:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.6 °F | |
| 2026-10-26T14:30:00Z | Milliken Creek at Silverado | 1.12 ft | 55.6 °F | |
| 2026-10-26T15:00:00Z | Milliken Creek at Silverado | 1.12 ft | 55.4 °F | |
| 2026-10-26T15:30:00Z | Milliken Creek at Silverado | 1.12 ft | 55.2 °F | |
| 2026-10-26T16:00:00Z | Milliken Creek at Silverado | 1.12 ft | 55.2 °F | |
| 2026-10-26T16:30:00Z | Milliken Creek at Silverado | 1.11 ft | 55.2 °F | |
| 2026-10-26T17:00:00Z | Milliken Creek at Silverado | 1.11 ft | 55.4 °F | |
| 2026-10-26T17:30:00Z | Milliken Creek at Silverado | 1.12 ft | 55.7 °F | |
| 2026-10-26T18:00:00Z | Milliken Creek at Silverado | 1.12 ft | 55.9 °F | |
| 2026-10-26T18:30:00Z | Milliken Creek at Silverado | 1.12 ft | 56.1 °F | |
| 2026-10-26T19:00:00Z | Milliken Creek at Silverado | 1.11 ft | 56.3 °F | |
| 2026-10-26T19:30:00Z | Milliken Creek at Silverado | 1.11 ft | 56.4 °F | |
| 2026-10-26T20:00:00Z | Milliken Creek at Silverado | 1.11 ft | 56.6 °F | |
| 2026-10-26T20:30:00Z | Milliken Creek at Silverado | 1.11 ft | 56.8 °F | |
| 2026-10-26T21:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.0 °F | |
| 2026-10-26T21:30:00Z | Milliken Creek at Silverado | 1.10 ft | 57.3 °F | |
| 2026-10-26T22:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.5 °F | |
| 2026-10-26T22:30:00Z | Milliken Creek at Silverado | 1.11 ft | 57.6 °F | |
| 2026-10-26T23:00:00Z | Milliken Creek at Silverado | 1.11 ft | 57.8 °F | |
| 2026-10-26T23:30:00Z | Milliken Creek at Silverado | 1.11 ft | 58.0 °F | |
| 2026-10-27T00:00:00Z | Milliken Creek at Silverado | 1.13 ft | 58.0 °F | |
| 2026-10-27T00:30:00Z | Milliken Creek at Silverado | 1.15 ft | 58.2 °F | |
| 2026-10-27T01:00:00Z | Milliken Creek at Silverado | 1.15 ft | 58.2 °F | |
| 2026-10-27T01:30:00Z | Milliken Creek at Silverado | 1.15 ft | 58.0 °F | |
| 2026-10-27T02:00:00Z | Milliken Creek at Silverado | 1.16 ft | 58.0 °F | |
| 2026-10-27T02:30:00Z | Milliken Creek at Silverado | 1.16 ft | 57.8 °F | |
| 2026-10-27T03:00:00Z | Milliken Creek at Silverado | 1.17 ft | 57.8 °F | |
| 2026-10-27T03:30:00Z | Milliken Creek at Silverado | 1.17 ft | 57.6 °F | |
| 2026-10-27T04:00:00Z | Milliken Creek at Silverado | 1.17 ft | 57.5 °F | |
| 2026-10-27T04:30:00Z | Milliken Creek at Silverado | 1.17 ft | 57.5 °F | |
| 2026-10-27T05:00:00Z | Milliken Creek at Silverado | 1.17 ft | 57.3 °F | |
| 2026-10-27T05:30:00Z | Milliken Creek at Silverado | 1.17 ft | 57.3 °F | |
| 2026-10-27T06:00:00Z | Milliken Creek at Silverado | 1.16 ft | 57.1 °F | |
| 2026-10-27T06:30:00Z | Milliken Creek at Silverado | 1.15 ft | 57.0 °F | |
| 2026-10-27T07:00:00Z | Milliken Creek at Silverado | 1.16 ft | 56.8 °F | |
| 2026-10-27T07:30:00Z | Milliken Creek at Silverado | 1.15 ft | 56.6 °F | |
| 2026-10-27T08:00:00Z | Milliken Creek at Silverado | 1.16 ft | 56.6 °F | |
| 2026-10-27T08:30:00Z | Milliken Creek at Silverado | 1.15 ft | 56.4 °F | |
| 2026-10-27T09:00:00Z | Milliken Creek at Silverado | 1.15 ft | 56.3 °F | |
| 2026-10-27T09:30:00Z | Milliken Creek at Silverado | 1.15 ft | 56.1 °F | |
| 2026-10-27T10:00:00Z | Milliken Creek at Silverado | 1.14 ft | 55.9 °F | |
| 2026-10-27T10:30:00Z | Milliken Creek at Silverado | 1.14 ft | 55.7 °F | |
| 2026-10-27T11:00:00Z | Milliken Creek at Silverado | 1.14 ft | 55.6 °F | |
| 2026-10-27T11:30:00Z | Milliken Creek at Silverado | 1.14 ft | 55.4 °F | |
| 2026-10-27T12:00:00Z | Milliken Creek at Silverado | 1.14 ft | 55.4 °F | |
| 2026-10-27T12:30:00Z | Milliken Creek at Silverado | 1.14 ft | 55.2 °F | |
| 2026-10-27T13:00:00Z | Milliken Creek at Silverado | 1.14 ft | 55.0 °F | |
| 2026-10-27T13:30:00Z | Milliken Creek at Silverado | 1.14 ft | 54.9 °F | |
| 2026-10-27T14:00:00Z | Milliken Creek at Silverado | 1.14 ft | 54.9 °F | |
| 2026-10-27T18:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T18:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T18:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T18:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T18:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T18:45:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T18:58:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:00:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:14:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:15:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:28:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:44:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:50:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T19:58:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:00:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:14:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:15:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T20:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T20:45:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T20:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T21:00:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T21:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T21:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T21:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T21:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T21:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T21:45:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T21:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T22:00:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T22:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T22:15:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T22:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T22:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-27T22:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T22:45:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T22:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:00:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:30:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:50:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-27T23:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:00:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:30:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:45:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T00:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:00:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:30:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:45:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T01:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:00:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:15:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:30:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:44:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:45:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T02:58:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T03:00:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T03:14:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T03:15:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T03:28:00Z | Milliken Creek at Atlas Peak Rd | 0.42 ft | — | |
| 2026-10-28T03:30:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T03:44:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T03:50:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T03:58:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:00:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:14:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:15:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:28:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:30:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T04:44:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T04:45:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T04:58:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T05:00:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T05:14:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T05:15:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T05:28:00Z | Milliken Creek at Atlas Peak Rd | 0.43 ft | — | |
| 2026-10-28T05:30:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T05:44:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T05:45:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T05:58:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — | |
| 2026-10-28T06:00:00Z | Milliken Creek at Atlas Peak Rd | 0.44 ft | — |
Download the data
Download all readings for this stream (CSV) 13 MB
This is the complete record for Milliken Creek as one CSV file, rebuilt by the publisher on every build. The archive copy of the same readings may be split into yearly segments; this file is not a link to a segment and always has the same name.
What is in the file
One row per reading, plus a header row that is always there: UTF-8 without a byte-order mark, LF line endings, and RFC 4180 quoting, so a field is quoted only when it holds a comma, a quote, or a line break. Rows are in a fixed order — gage, then measurement, then time — which is what lets two versions of the file be compared line by line to find what changed. Values are the exact numbers the site stores, not rounded for display; the unit each one is in travels with it in the row, in unit_metric, unit_imperial, and raw_unit. Both observed_at_utc and ingested_at_utc are ISO-8601 in UTC with a trailing Z and whole seconds, so a timestamp is never ambiguous across the daylight-saving change; the local times in the table above are those same instants read in the gage's time zone.
stream_slug- Which stream the reading belongs to. Every row of this file is the same stream.
gage_slug- Which gage on that stream took it — a stream can have more than one.
logger_sn- The data logger's serial number, recorded with the reading and never rewritten.
sensor_sn- The sensor's serial number, so swapping a sensor later cannot move an old reading's provenance.
measurement_type- What was measured, as a code — the same codes this page labels in its own column headings.
observed_at_utc- When the reading was taken, as ISO-8601 UTC with a trailing Z, whole seconds: 2026-09-14T21:45:00Z.
value_metric- The value in metric units, exactly as the site stores it.
unit_metric- The unit value_metric is in, written in each row beside it.
value_imperial- The same value in US units, converted with the unit registry's factor and rounded to its precision plus two places.
unit_imperial- The unit value_imperial is in.
raw_value- The value as the logger reported it, before any conversion.
raw_unit- The unit raw_value is in, as the logger reported it.
source- Which ingest path produced the row, so a change of instrument is visible in the data.
ingested_at_utc- When the site stored the reading, in ISO-8601 UTC with a trailing Z — when it arrived, not when it was measured.
Attribution: data from LI-COR Cloud gages, published by Water Audit California. Please keep the gage and the observation time with any value you reuse, so it can be checked.
License: the readings are published under the MIT/X Consortium License.
About this data
Water level at gage: depth of water above the sensor, relative to the level recorded when the logger was installed. It is not a surveyed river stage and can't be compared between gages.
7-day average daily high temperature (7DADM): the mean of the daily maximum water temperature over seven consecutive local days, calculated only when all seven days are complete. The steelhead bands below are applied to that value, never to a single reading.
All times shown are gage-local time (America/Los_Angeles), the same zone the site is configured for; data files carry UTC timestamps.
| Band | 7-day average daily high | What it means |
|---|---|---|
| Good | at or below 60.8 °F | Good for young steelhead |
| Stressful | above 60.8 °F and below 71.6 °F | Stressful: slower growth, more disease |
| Dangerous | at or above 71.6 °F | Dangerous: can kill steelhead |
| Federal reference | 68.0 °F | Federal recovery-plan limit for suitable summer rearing. |
| Heat spike | 75.2 °F | A single reading or daily high at or above this value. |
Biological thresholds from published research (EPA 2003 and others), not legal limits. Sources: EPA Region 10 (2003) Tables 1, 3, and 4; NMFS 2016 recovery plan, Vol. IV; WDOE 2002 via Carter 2005; Nielsen et al. 1994; Sullivan et al. 2000.
Thresholds are pending scientific review.
Seasonal limits for spawning and smoltification are configured but not applied.
Measurements come from LI-COR Cloud loggers and configured CDEC stations, published by Water Audit California.
Data: National Weather Service (HADS) (NWS MIKC1).
Earlier readings, and any measurement NWS does not publish, come from Napa County (OneRain site 17799).