Mountain Creek Lake water level today
On Oct 28, 2026, Mountain Creek Lake is at 457.70 ft, 100.0% full (0.70 ft above full pool). That is 3.3 points above normal for this date.
Source: Texas Water Development Board · storage 22,850 of 22,850 acre-ft · provisional data
Mountain Creek Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%Jan 26, 1989
- Record low
- 73.3%Sep 12, 1998
- 12-month high
- 100.0%Oct 29, 2025
- 12-month low
- 97.9%Sep 20, 2026
- Last time full
- Oct 28, 2026
- Change in 1 year
- −0.16 ft±0.0 pts
About Mountain Creek Lake
- River basin
- Trinity
- Full pool (top of conservation pool)
- 457.00 ft
- Conservation capacity
- 22,850 acre-ft
- Surface area today
- 2,894 acres
- Dead pool elevation
- 0.00 ft
- Flood control reservoir
- No
- Data since
- Oct 2, 1987
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 100% | — | — |
| 2025 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2024 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 100% | 100% |
| 2023 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 98% | 100% | 100% | 100% |
| 2022 | 100% | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 100% | 100% | 100% | 100% |
| 2021 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2020 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| 2018 | 100% | 100% | 100% | 100% | 100% | 100% | 97% | 95% | 99% | 100% | 100% | 100% |
| 2017 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
Frequently asked questions
Is Mountain Creek Lake full?
Yes. On Oct 28, 2026 Mountain Creek Lake was 100.0% full, at or above the top of its conservation pool (457.00 ft).
What is the normal level of Mountain Creek Lake for this time of year?
Between 1996 and 2025, Mountain Creek Lake averaged 96.7% full around Oct 28, and 8 in 10 years it was between 86.7% and 100.0%. Today it is +3.3 percentage points above that average.
What is the lowest Mountain Creek Lake has been?
In the TWDB record, which starts in 1987, the lowest daily value was 73.3% on Sep 12, 1998. The highest was 100.0% on Jan 26, 1989.
How often is the Mountain Creek 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 (22,850 acre-feet for Mountain Creek 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.