Halbert Lake water level today
On Oct 28, 2026, Halbert Lake is at 365.22 ft, 74.9% full (2.78 ft below full pool). That is 3.3 points above normal for this date.
Source: Texas Water Development Board · storage 4,516 of 6,033 acre-ft · provisional data
Halbert Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%Mar 30, 2007
- Record low
- 25.4%Oct 31, 2006
- 12-month high
- 83.7%Jul 17, 2026
- 12-month low
- 72.0%Sep 30, 2026
- Last time full
- Jun 12, 2025
- Change in 1 year
- −0.94 ft−8.1 pts
About Halbert Lake
- River basin
- Trinity
- Full pool (top of conservation pool)
- 368.00 ft
- Conservation capacity
- 6,033 acre-ft
- Surface area today
- 514 acres
- Dead pool elevation
- 0.00 ft
- Flood control reservoir
- No
- Data since
- Apr 15, 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 | 75% | 75% | 76% | 76% | 76% | 80% | 82% | 78% | 73% | 76% | — | — |
| 2025 | 86% | 91% | 90% | 93% | 92% | 92% | 87% | 86% | 87% | 84% | 80% | 78% |
| 2024 | 72% | 87% | 89% | 90% | 91% | 89% | 84% | 82% | 78% | 76% | 76% | 80% |
| 2023 | 92% | 92% | 88% | 87% | 90% | 90% | 85% | 78% | 74% | 71% | 70% | 68% |
| 2022 | 85% | 87% | 88% | 88% | 88% | 87% | 81% | 76% | 76% | 75% | 81% | 92% |
| 2021 | 90% | 87% | 87% | 83% | 85% | 89% | 91% | 87% | 84% | 84% | 85% | 86% |
| 2020 | 84% | 89% | 91% | 91% | 90% | 87% | 88% | 85% | 91% | 87% | 88% | 88% |
| 2019 | 91% | 90% | 89% | 89% | 91% | 91% | 85% | 82% | 81% | 79% | 82% | 84% |
| 2018 | 92% | 93% | 91% | 90% | 89% | 86% | 83% | 80% | 80% | 86% | 93% | 91% |
| 2017 | 84% | 89% | 85% | 90% | 85% | 89% | 87% | 86% | 85% | 87% | 89% | 91% |
Frequently asked questions
Is Halbert Lake full?
Not quite. On Oct 28, 2026 Halbert Lake was 74.9% full, 2.78 feet below its full pool elevation of 368.00 ft. It was last full on Jun 12, 2025.
What is the normal level of Halbert Lake for this time of year?
Between 1996 and 2025, Halbert Lake averaged 71.6% full around Oct 28, and 8 in 10 years it was between 50.2% and 91.4%. Today it is +3.3 percentage points above that average.
What is the lowest Halbert Lake has been?
In the TWDB record, which starts in 1999, the lowest daily value was 25.4% on Oct 31, 2006. The highest was 100.0% on Mar 30, 2007.
How often is the Halbert 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 (6,033 acre-feet for Halbert 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.