Whitney Lake water level today
On Oct 28, 2026, Whitney Lake is at 530.50 ft, 90.2% full (2.50 ft below full pool). That is 9.5 points above normal for this date.
Source: Texas Water Development Board · storage 509,592 of 564,808 acre-ft · provisional data
Whitney Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Whitney Lake from space
The same area near the lowest and the highest level since 2016, on clear days. Compare the shoreline and the coves.
Imagery: NASA GIBS, Harmonized Landsat Sentinel-2 (HLS). Landsat 8/9 courtesy of NASA/USGS; contains modified Copernicus Sentinel data 2023. Black specks are cloud and shadow masks.
Records and key dates
- Record high
- 100.0%Feb 18, 2001
- Record low
- 50.1%Dec 3, 2011
- 12-month high
- 100.0%Jun 7, 2026
- 12-month low
- 89.4%Sep 30, 2026
- Last time full
- Jul 25, 2026
- Change in 1 year
- −1.28 ft−4.9 pts
About Whitney Lake
- River basin
- Brazos
- Full pool (top of conservation pool)
- 533.00 ft
- Conservation capacity
- 564,808 acre-ft
- Surface area today
- 20,966 acres
- Dead pool elevation
- 448.83 ft
- Flood control reservoir
- Yes
- Data since
- Oct 2, 1999
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 94% | 94% | 95% | 95% | 98% | 100% | 100% | 97% | 92% | 91% | — | — |
| 2025 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 96% | 94% | 94% |
| 2024 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 98% | 97% | 97% | 100% |
| 2023 | 75% | 77% | 79% | 79% | 81% | 83% | 81% | 75% | 72% | 74% | 95% | 96% |
| 2022 | 91% | 91% | 91% | 91% | 90% | 86% | 78% | 74% | 75% | 73% | 74% | 75% |
| 2021 | 91% | 89% | 89% | 90% | 100% | 100% | 99% | 96% | 94% | 92% | 92% | 92% |
| 2020 | 78% | 82% | 92% | 98% | 93% | 94% | 95% | 90% | 95% | 92% | 90% | 89% |
| 2019 | 100% | 96% | 93% | 92% | 100% | 100% | 95% | 84% | 79% | 78% | 77% | 77% |
| 2018 | 83% | 84% | 89% | 92% | 94% | 91% | 86% | 80% | 78% | 94% | 100% | 100% |
| 2017 | 88% | 90% | 90% | 92% | 91% | 97% | 94% | 88% | 87% | 84% | 83% | 83% |
Frequently asked questions
Is Whitney Lake full?
Not quite. On Oct 28, 2026 Whitney Lake was 90.2% full, 2.50 feet below its full pool elevation of 533.00 ft. It was last full on Jul 25, 2026.
What is the normal level of Whitney Lake for this time of year?
Between 1996 and 2025, Whitney Lake averaged 80.7% full around Oct 28, and 8 in 10 years it was between 65.8% and 95.1%. Today it is +9.5 percentage points above that average.
What is the lowest Whitney Lake has been?
In the TWDB record, which starts in 1999, the lowest daily value was 50.1% on Dec 3, 2011. The highest was 100.0% on Feb 18, 2001.
How often is the Whitney 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 (564,808 acre-feet for Whitney 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.