Reservoir · Texas · United States · BOR RISE
Lake Nasworthy
Lake Nasworthy and Dam
92.9% full
Capacity
12.47 hm³
Volume stored
12 hm³
Vs month average
102% of normal
Coordinates
31.389°N, 100.478°W
Last updated
2026-10-27
Current fill
92.9%vs 7 days ago
+0.4 ppgaining
vs 1 year ago
+0.8 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
102%of normal
92.9% full on 2026-10-27, against an average of 91.1% for October across 6 years of readings (+1.8 points).
Drought Monitor at this site · 20 October 2026
D2severe drought
The ground at Lake Nasworthy's coordinates falls inside the D2 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Texas drought figures →
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 31.389°N, 100.478°W · Open in Google Maps
About Lake Nasworthy
As of October 27, 2026, Lake Nasworthy is filled to 92.9% of its total capacity, holding 11.59 hm³ of water out of a maximum 12.47 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.4 pp), and it sits close to where it was a year earlier.
Across the readings we hold for Lake Nasworthy — 1883 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 67.8% (December 17, 2021) to a high of 104.9% (November 10, 2024). On average the reservoir is fullest around January and at its lowest around June.
It is operated by BOR primarily for multiple purposes. It is at 31.389°N, 100.478°W.
Key facts
- Current fill level
- 92.9% of total capacity
- Water stored
- 11.59 hm³
- Total capacity
- 12.47 hm³
- 7-day change
- ▲ 0.4 pp
- Year-on-year
- ▲ 0.8 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 31.389°N, 100.478°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 92.9% | 11.59 |
| 26 Oct 2026 | 92.8% | 11.57 |
| 25 Oct 2026 | 92.8% | 11.57 |
| 24 Oct 2026 | 92.9% | 11.59 |
| 23 Oct 2026 | 92.9% | 11.59 |
| 22 Oct 2026 | 92.9% | 11.59 |
| 21 Oct 2026 | 92.8% | 11.57 |
| 20 Oct 2026 | 92.5% | 11.54 |
| 19 Oct 2026 | 92.3% | 11.51 |
| 18 Oct 2026 | 91.9% | 11.46 |
| 17 Oct 2026 | 91.9% | 11.46 |
| 16 Oct 2026 | 91.9% | 11.46 |