O. C. Fisher Lake water level today
On Oct 28, 2026, O. C. Fisher Lake is at 1,871.81 ft, 10.4% full (36.19 ft below full pool). That is 4.3 points above normal for this date.
Lowest since July 2025Very low
Source: Texas Water Development Board · storage 12,031 of 115,742 acre-ft · provisional data
O. C. Fisher Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 19.4%Jul 6, 2025
- Record low
- 0.1%Jan 25, 2014
- 12-month high
- 15.5%Nov 24, 2025
- 12-month low
- 10.4%Oct 23, 2026
- Last time full
- Not in the record
- Change in 1 year
- —
About O. C. Fisher Lake
- River basin
- Colorado
- Full pool (top of conservation pool)
- 1,908.00 ft
- Conservation capacity
- 115,742 acre-ft
- Surface area today
- 1,056 acres
- Dead pool elevation
- 1,840.00 ft
- Flood control reservoir
- Yes
- Water supply for
- San Angelo
- Data since
- Oct 1, 2000
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 15% | 15% | 14% | 14% | 14% | 14% | 13% | 12% | 11% | 11% | — | — |
| 2025 | 8% | 8% | 8% | 8% | 10% | 9% | 18% | 18% | 17% | 16% | 15% | 15% |
| 2024 | 2% | 2% | 2% | 2% | 2% | — | 1% | 1% | 7% | 7% | 9% | 9% |
| 2023 | 3% | 3% | 3% | 3% | 3% | 3% | 3% | 2% | 2% | 2% | 2% | 2% |
| 2022 | 6% | 6% | 6% | 5% | 5% | 5% | 4% | 4% | 4% | 3% | 3% | 3% |
| 2021 | 6% | 6% | 6% | 6% | 6% | 5% | 5% | 6% | 7% | 7% | 6% | 6% |
| 2020 | 9% | 9% | 9% | 9% | 9% | 8% | 8% | 7% | 7% | 7% | 7% | 6% |
| 2019 | 13% | 13% | 13% | 12% | 12% | 13% | 12% | 11% | 10% | 10% | 9% | 9% |
| 2018 | 9% | 9% | 9% | 8% | 8% | 8% | 7% | 7% | 7% | 10% | 13% | 13% |
| 2017 | 13% | 13% | 13% | 13% | 12% | 12% | 11% | 10% | 10% | 10% | 9% | 9% |
Frequently asked questions
Is O. C. Fisher Lake full?
Not quite. On Oct 28, 2026 O. C. Fisher Lake was 10.4% full, 36.19 feet below its full pool elevation of 1,908.00 ft.
What is the normal level of O. C. Fisher Lake for this time of year?
Between 1996 and 2025, O. C. Fisher Lake averaged 6.1% full around Oct 28, and 8 in 10 years it was between 1.4% and 13.2%. Today it is +4.3 percentage points above that average.
What is the lowest O. C. Fisher Lake has been?
In the TWDB record, which starts in 2000, the lowest daily value was 0.1% on Jan 25, 2014. The highest was 19.4% on Jul 6, 2025.
How often is the O. C. Fisher Lake water level updated?
TWDB publishes one reading per day for each reservoir. We check for new data every 2 hours and show the date of the reading next to the level. Recent values are provisional.
What does percent full mean?
It is the water stored in the conservation pool divided by the conservation capacity (115,742 acre-feet for O. C. Fisher Lake). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.