Joe Pool Lake water level today
On Oct 28, 2026, Joe Pool Lake is at 519.88 ft, 90.9% full (2.12 ft below full pool). That is 3.4 points below normal for this date.
Source: Texas Water Development Board · storage 136,053 of 149,629 acre-ft · provisional data
Joe Pool Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%May 18, 1989
- Record low
- 42.6%Jan 21, 1989
- 12-month high
- 100.0%Feb 15, 2026
- 12-month low
- 89.6%Sep 30, 2026
- Last time full
- Jul 5, 2026
- Change in 1 year
- −0.89 ft−3.7 pts
About Joe Pool Lake
- River basin
- Trinity
- Full pool (top of conservation pool)
- 522.00 ft
- Conservation capacity
- 149,629 acre-ft
- Surface area today
- 6,146 acres
- Dead pool elevation
- 466.00 ft
- Flood control reservoir
- Yes
- Data since
- Sep 30, 1988
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 98% | 100% | 100% | 100% | 100% | 100% | 99% | 95% | 91% | 92% | — | — |
| 2025 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 96% | 94% | 95% | 99% |
| 2024 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 98% | 98% |
| 2023 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 96% | 92% | 92% | 100% | 100% |
| 2022 | 94% | 93% | 92% | 92% | 91% | 94% | 90% | 89% | 95% | 92% | 96% | 100% |
| 2021 | 94% | 94% | 95% | 97% | 100% | 100% | 100% | 100% | 100% | 98% | 97% | 96% |
| 2020 | 89% | 94% | 100% | 100% | 100% | 100% | 99% | 97% | 98% | 96% | 94% | 93% |
| 2019 | 100% | 98% | 99% | 100% | 100% | 100% | 99% | 95% | 92% | 89% | 89% | 88% |
| 2018 | 97% | 97% | 100% | 100% | 100% | 98% | 94% | 92% | 95% | 100% | 100% | 100% |
| 2017 | 98% | 100% | 100% | 100% | 99% | 100% | 100% | 100% | 98% | 97% | 96% | 96% |
Frequently asked questions
Is Joe Pool Lake full?
Not quite. On Oct 28, 2026 Joe Pool Lake was 90.9% full, 2.12 feet below its full pool elevation of 522.00 ft. It was last full on Jul 5, 2026.
What is the normal level of Joe Pool Lake for this time of year?
Between 1996 and 2025, Joe Pool Lake averaged 94.3% full around Oct 28, and 8 in 10 years it was between 88.0% and 100.0%. Today it is −3.4 percentage points below that average.
What is the lowest Joe Pool Lake has been?
In the TWDB record, which starts in 1988, the lowest daily value was 42.6% on Jan 21, 1989. The highest was 100.0% on May 18, 1989.
How often is the Joe Pool 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 (149,629 acre-feet for Joe Pool 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.