Lavon Lake water level today
On Oct 28, 2026, Lavon Lake is at 487.51 ft, 78.4% full (4.49 ft below full pool). That is 4.8 points above normal for this date.
Lowest since October 2023Near normal
Source: Texas Water Development Board · storage 321,320 of 409,757 acre-ft · provisional data
Lavon Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Lavon 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 2022. Black specks are cloud and shadow masks.
Records and key dates
- Record high
- 100.0%Feb 25, 1989
- Record low
- 33.3%Nov 5, 2006
- 12-month high
- 100.0%Mar 15, 2026
- 12-month low
- 78.4%Oct 28, 2026
- Last time full
- Jul 18, 2026
- Change in 1 year
- −1.78 ft−8.3 pts
About Lavon Lake
- River basin
- Trinity
- Full pool (top of conservation pool)
- 492.00 ft
- Conservation capacity
- 409,757 acre-ft
- Surface area today
- 18,611 acres
- Dead pool elevation
- 453.00 ft
- Flood control reservoir
- Yes
- Water supply for
- Dallas
- 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 | 90% | 92% | 98% | 100% | 100% | 100% | 99% | 91% | 82% | 80% | — | — |
| 2025 | 91% | 100% | 100% | 100% | 100% | 100% | 99% | 93% | 90% | 87% | 86% | 90% |
| 2024 | 93% | 100% | 100% | 100% | 100% | 100% | 100% | 96% | 88% | 83% | 83% | 84% |
| 2023 | 94% | 99% | 100% | 100% | 98% | 97% | 96% | 86% | 77% | 75% | 84% | 85% |
| 2022 | 81% | 81% | 82% | 97% | 100% | 99% | 90% | 80% | 76% | 71% | 76% | 90% |
| 2021 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 96% | 89% | 83% | 83% | 82% |
| 2020 | 87% | 97% | 100% | 100% | 100% | 100% | 97% | 90% | 94% | 93% | 91% | 90% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 91% | 85% | 79% | 81% | 83% |
| 2018 | 87% | 91% | 100% | 100% | 100% | 96% | 88% | 82% | 86% | 100% | 100% | 100% |
| 2017 | 84% | 87% | 90% | 94% | 96% | 97% | 99% | 98% | 98% | 92% | 87% | 85% |
Frequently asked questions
Is Lavon Lake full?
Not quite. On Oct 28, 2026 Lavon Lake was 78.4% full, 4.49 feet below its full pool elevation of 492.00 ft. It was last full on Jul 18, 2026.
What is the normal level of Lavon Lake for this time of year?
Between 1996 and 2025, Lavon Lake averaged 73.6% full around Oct 28, and 8 in 10 years it was between 48.3% and 90.4%. Today it is +4.8 percentage points above that average.
What is the lowest Lavon Lake has been?
In the TWDB record, which starts in 1988, the lowest daily value was 33.3% on Nov 5, 2006. The highest was 100.0% on Feb 25, 1989.
How often is the Lavon 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 (409,757 acre-feet for Lavon 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.