Reservoir · Texas · United States · TWDB
Lake Sulphur Springs
85.4% full
Capacity
21.89 hm³
Volume stored
19 hm³
Vs month average
101% of normal
Coordinates
33.168°N, 95.642°W
Last updated
2026-10-13
Current fill
85.4%vs 7 days ago
-0.9%losing
vs 1 year ago
+4.8%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
101%of normal
85.4% full on 2026-10-13, against an average of 84.2% for October across 5 years of readings (+1.2 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 Lake Sulphur Springs
As of October 13, 2026, Lake Sulphur Springs is filled to 85.4% of its total capacity, holding roughly 19 hm³ of water out of a maximum 22 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.9 pts), and it is 4.8 points above its level on the same date a year earlier.
Across the readings we hold for Lake Sulphur Springs — 1456 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 65.2% (October 22, 2022) to a high of 100.0% (November 27, 2022). On average the reservoir is fullest around June and at its lowest around November.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 33.168°N, 95.642°W.
Key facts
- Current fill level
- 85.4%
- Water stored
- 19 hm³
- Total capacity
- 22 hm³
- 7-day change
- ▼ 0.9 pts
- Year-on-year
- ▲ 4.8 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 33.168°N, 95.642°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 85.4% | 19 |
| 12 Oct 2026 | 85.5% | 19 |
| 11 Oct 2026 | 85.7% | 19 |
| 10 Oct 2026 | 85.8% | 19 |
| 9 Oct 2026 | 86.0% | 19 |
| 8 Oct 2026 | 86.1% | 19 |
| 7 Oct 2026 | 86.3% | 19 |
| 6 Oct 2026 | 86.3% | 19 |
| 5 Oct 2026 | 86.4% | 19 |
| 4 Oct 2026 | 86.3% | 19 |
| 3 Oct 2026 | 85.8% | 19 |
| 2 Oct 2026 | 85.5% | 19 |