Lake Sonoma water level: Sonoma 
7.8 ft low
Lake Sonoma is 7.8 ft below full pool, much higher than usual for early November. The Lake Sonoma / Warm Springs Dam gauge read 443.35 ft at 6:00 AM PST, November 4, 2026.
How Sonoma stands today
- 443.35 Feet above sea level6:00 AM PST, November 4, 2026, NGVD29 datum.
- −7.75 Feet from full poolFull pool today is 451.10 ft.
- 91.2 Percent of conservation storageWater held above top of inactive, as a share of the pool's capacity.
- +5.86 Feet from normal for Nov 4Median of 2015–2025 is 437.49 ft. Today ranks in the 100th percentile, the highest for this date in 12 years.
- +1.27 Feet from a year ago442.08 ft on November 4, 2025.
- −2.61 Feet over 30 days−0.62 ft over the past 7 days.
The past year, day by day
The shaded band is where Sonoma usually sits on each date: the middle 80% of years from 2015 to 2025. The blue line is the past 12 months; the sand line is the 12 months before. Hover or use the arrow keys to read any day.
- Past 12 months
- The 12 months before
- Normal range (middle 80% of years)
- Median
- Full pool
Monthly average since 2014
Readings for the last 30 days
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| November 4, 2026 | 443.36 | 437.49 |
| November 3, 2026 | 443.40 | 437.60 |
| November 2, 2026 | 443.48 | 437.72 |
| November 1, 2026 | 443.59 | 437.63 |
| October 31, 2026 | 443.69 | 437.47 |
| October 30, 2026 | 443.79 | 437.29 |
| October 29, 2026 | 443.88 | 437.11 |
| October 28, 2026 | 443.97 | 436.95 |
| October 27, 2026 | 444.05 | 436.82 |
| October 26, 2026 | 444.14 | 436.74 |
| October 25, 2026 | 444.22 | 436.70 |
| October 24, 2026 | 444.31 | 436.68 |
| October 23, 2026 | 444.40 | 436.69 |
| October 22, 2026 | 444.48 | 436.71 |
| October 21, 2026 | 444.56 | 436.74 |
| Date | Level (ft) | Normal (ft) |
|---|---|---|
| October 20, 2026 | 444.64 | 436.81 |
| October 19, 2026 | 444.72 | 436.88 |
| October 18, 2026 | 444.80 | 436.94 |
| October 17, 2026 | 444.90 | 436.99 |
| October 16, 2026 | 444.99 | 437.03 |
| October 15, 2026 | 445.07 | 437.08 |
| October 14, 2026 | 445.16 | 437.12 |
| October 13, 2026 | 445.26 | 437.17 |
| October 12, 2026 | 445.34 | 437.23 |
| October 11, 2026 | 445.45 | 437.30 |
| October 10, 2026 | 445.54 | 437.37 |
| October 9, 2026 | 445.61 | 437.46 |
| October 8, 2026 | 445.71 | 437.55 |
| October 7, 2026 | 445.79 | 437.63 |
| October 6, 2026 | 445.88 | 437.72 |
Is the water above your dock?
Enter the elevation of your dock, ramp end or a mark on your shoreline, in feet above sea level (NGVD29, the datum the Army Corps of Engineers uses for this gauge). You will see how far the water is above or below it today, and how often it dipped below it in each month since 2016.
| Month | Low year (10th %) | Median | High year (90th %) | Days above your mark |
|---|---|---|---|---|
| January | 410.23 | 442.31 | 457.74 | — |
| February | 412.35 | 450.32 | 464.28 | — |
| March | 411.50 | 454.80 | 461.55 | — |
| April | 409.42 | 452.99 | 458.71 | — |
| May | 405.05 | 451.40 | 457.76 | — |
| June | 400.92 | 449.93 | 456.08 | — |
| July | 396.54 | 447.26 | 453.71 | — |
| August | 392.07 | 444.50 | 450.66 | — |
| September | 387.75 | 441.66 | 447.74 | — |
| October | 384.27 | 438.73 | 444.97 | — |
| November | 391.99 | 436.62 | 442.51 | — |
| December | 391.49 | 435.24 | 454.32 | — |
Other California lakes, lowest first
| Lake | Level (ft) | Vs full pool |
|---|---|---|
| Eastman Lake | 466.12 | 101.5 ft below |
| Hensley Lake | 453.81 | 52.0 ft below |
 Pine Flat Lake | 753.31 | 169.9 ft below |
 Black Butte Lake | 435.72 | 17.6 ft below |
 Lake Mendocino | 724.22 | 13.3 ft below |
 Folsom Lake | 398.42 | 47.0% full |
 Shasta Lake | 972.06 | 69.3 ft below |
| Stampede Reservoir | 5,919.95 | 22.2 ft below |
 Lake McClure | 772.24 | 37.4 ft below |
 Lake Isabella | 2,554.93 | 5.5 ft below |
 Millerton Lake | 503.57 | 56.2 ft below |
| Prosser Creek Reservoir | 5,706.20 | 2.6 ft above |
 Lake Oroville | 734.67 | 140.2 ft below |
| New Melones Lake | 1,003.77 | 45.8 ft below |
Sonoma questions
What is full pool at Lake Sonoma?
Full pool at Lake Sonoma is 451.10 ft above sea level today. The agency's own term for it is “top of conservation.”
Is Lake Sonoma full right now?
No. It is 7.8 ft below full pool and holds 91.2% of its conservation storage.
Is Lake Sonoma lower than normal for early November?
No, it is higher than normal. The median level on Nov 4 across 2015–2025 is 437.49 ft, and today's 443.35 ft is +5.86 ft from it. In 8 of 10 years the level on this date fell between 392.06 and 442.62 ft.
How does Lake Sonoma compare with last year?
A year ago, on November 4, 2025, it stood at 442.08 ft. It is 1.27 ft higher now.
What are the highest and lowest levels since 2014?
In the daily record we hold, which starts in 2014, the highest daily level was 478.48 ft on January 23, 2017 and the lowest was 376.38 ft on December 9, 2022.
How often is this page updated?
We pull new readings from the U.S. Army Corps of Engineers several times a day. This page was last rebuilt on Wed, 04 Nov 2026 15:13:17 UTC. Readings are provisional and can be revised by the agency.