New Terrell City Lake water level today
On Oct 28, 2026, New Terrell City Lake is at 493.27 ft, 23.6% full (10.73 ft below full pool). That is 46.8 points below normal for this date.
Lowest since December 2024Very low
Source: Texas Water Development Board · storage 2,029 of 8,583 acre-ft · provisional data
New Terrell City Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%Apr 22, 1999
- Record low
- 17.1%Oct 24, 2023
- 12-month high
- 34.6%Jun 8, 2026
- 12-month low
- 23.6%Oct 28, 2026
- Last time full
- Feb 24, 2023
- Change in 1 year
- −0.46 ft−2.0 pts
About New Terrell City Lake
- River basin
- Trinity
- Full pool (top of conservation pool)
- 504.00 ft
- Conservation capacity
- 8,583 acre-ft
- Surface area today
- 354 acres
- Dead pool elevation
- 481.00 ft
- Flood control reservoir
- No
- Data since
- Apr 22, 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 | 24% | 25% | 27% | 28% | 28% | 33% | 31% | 28% | 25% | 24% | — | — |
| 2025 | 25% | 40% | 29% | 36% | 40% | 39% | 30% | 28% | 27% | 26% | 25% | 25% |
| 2024 | 32% | 32% | 33% | 48% | 58% | 60% | 28% | 26% | 24% | 23% | 22% | 22% |
| 2023 | 98% | 99% | 74% | 33% | 36% | 25% | 24% | 20% | 18% | 19% | 32% | 27% |
| 2022 | 88% | 89% | 88% | 90% | 93% | 90% | 83% | 79% | 82% | 78% | 86% | 99% |
| 2021 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 96% | 92% | 90% | 90% |
| 2020 | 98% | 100% | 100% | 100% | 100% | 100% | 99% | 94% | 94% | 92% | 92% | 90% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 94% | 96% | 95% |
| 2018 | 91% | 94% | 100% | 100% | 100% | 97% | 94% | 95% | 96% | 100% | 100% | 100% |
| 2017 | 97% | 99% | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 93% | 92% | 91% |
Frequently asked questions
Is New Terrell City Lake full?
Not quite. On Oct 28, 2026 New Terrell City Lake was 23.6% full, 10.73 feet below its full pool elevation of 504.00 ft. It was last full on Feb 24, 2023.
What is the normal level of New Terrell City Lake for this time of year?
Between 1996 and 2025, New Terrell City Lake averaged 70.4% full around Oct 28, and 8 in 10 years it was between 25.4% and 98.5%. Today it is −46.8 percentage points below that average.
What is the lowest New Terrell City Lake has been?
In the TWDB record, which starts in 1999, the lowest daily value was 17.1% on Oct 24, 2023. The highest was 100.0% on Apr 22, 1999.
How often is the New Terrell City 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 (8,583 acre-feet for New Terrell City 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.