Reservoir · Texas · United States · TWDB
Wright Patman Lake
100.0% full
Capacity
151.22 hm³
Volume stored
151 hm³
Vs month average
100% of normal
Coordinates
33.305°N, 94.161°W
Last updated
2026-10-13
Current fill
100.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
100%of normal
100.0% full on 2026-10-13, against an average of 99.9% for October across 5 years of readings (+0.1 points).
Data source: Texas Water Development Board (Water Data for Texas) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Wright Patman Lake
As of October 13, 2026, Wright Patman Lake is filled to 100.0% of its total capacity, holding roughly 151 hm³ of water out of a maximum 151 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Wright Patman Lake — 1459 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 81.7% (April 2, 2023) to a high of 100.0% (October 15, 2022). On average the reservoir is fullest around January and at its lowest around April.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 33.305°N, 94.161°W.
Key facts
- Current fill level
- 100.0%
- Water stored
- 151 hm³
- Total capacity
- 151 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 33.305°N, 94.161°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 100.0% | 151 |
| 12 Oct 2026 | 100.0% | 151 |
| 11 Oct 2026 | 100.0% | 151 |
| 10 Oct 2026 | 100.0% | 151 |
| 9 Oct 2026 | 100.0% | 151 |
| 8 Oct 2026 | 100.0% | 151 |
| 7 Oct 2026 | 100.0% | 151 |
| 6 Oct 2026 | 100.0% | 151 |
| 5 Oct 2026 | 100.0% | 151 |
| 4 Oct 2026 | 100.0% | 151 |
| 3 Oct 2026 | 100.0% | 151 |
| 2 Oct 2026 | 100.0% | 151 |