Lake Nasworthy
Source: Texas Water Development Board (Water Data for Texas)
SSE 15 mph · rain 1%
SE 5 to 10 mph · rain 3%
Level history
Field notes
Lake Nasworthy's latest daily level (Oct 25, 2026) is 1,871.75 ft, which is 85.9% of its conservation capacity.
That is 0.96 ft below the conservation (full) pool elevation of 1,872.71 ft.
Over the past 7 days the lake has been rising (+0.08 ft), and it is +0.03 ft over 30 days.
Compared with a year ago (1,871.70 ft), the lake is at about the same level.
For this time of year, the median in TWDB's records (1996–2025, 30 years with data) is 84.3% full, so Nasworthy is currently close to normal.
In TWDB's dataset (since 1996), the highest level recorded is 1,872.52 ft (Nov 9, 2024) and the lowest is 1,867.73 ft (May 6, 2014). Older records may be monthly rather than daily.
Lake facts
| Conservation storage | 8,257 ac-ft |
|---|---|
| Total storage (latest) | 8,750 ac-ft |
| Surface area | 1,236 acres |
| Gauge location | 31.3886, -100.4781 |
| Groups | Colorado River Basin Region F Water Planning Area Water supply for San Angelo |
Reference levels
| Level · source | Elevation | Today vs level |
|---|---|---|
| Conservation (full) pool TWDB | 1,872.71 ft | −0.96 ft |
| Dead pool TWDB | 1,860.51 ft | +11.24 ft |
| Highest in TWDB data (since 1996) TWDB series | 1,872.52 ft Nov 9, 2024 | −0.77 ft |
| Lowest in TWDB data (since 1996) TWDB series | 1,867.73 ft May 6, 2014 | +4.02 ft |
| Normal range for this date TWDB series, 30 years 1996–2025 | 79.8–85.9% full (median 84.3%) | — |
| Conservation capacity TWDB | 9,615 acre-feet | — |
Only levels the agency publishes, or that we compute directly from its own records, are listed. “Today vs level” = latest reading minus the reference level. A level the source does not publish is left out rather than estimated.
Nearby lakes
Common questions
How full is Lake Nasworthy right now?
As of Oct 25, 2026, TWDB reports Lake Nasworthy at 85.9% of its conservation capacity (8,257 of 9,615 acre-feet). For this date, the middle half of past years (1996–2025) ranged from 79.8% to 85.9% full, with a median of 84.3%.
What is the record high and low at Lake Nasworthy?
In TWDB's records since 1996, the highest level is 1,872.52 ft (Nov 9, 2024) and the lowest is 1,867.73 ft (May 6, 2014).
What is full pool at Lake Nasworthy?
The conservation (full) pool elevation used by TWDB is 1,872.71 ft. The lake is currently 0.96 ft below it.
Is Lake Nasworthy rising or falling?
Over the last 7 days it changed +0.08 ft and over 30 days +0.03 ft.
How often is this page updated?
The page is rebuilt automatically every day from TWDB's published data. Values can be revised later by the source agency.
Where does the data come from?
Water Data for Texas, run by the Texas Water Development Board, which compiles gauge readings from USGS, USACE, river authorities and others. Forecasts come from the National Weather Service.
Values are TWDB daily estimates; elevations in feet above the vertical datum stated by TWDB. TWDB disclaimer: reservoir data are best estimates generated by the Texas Water Development Board from data collected by various providers; TWDB makes no warranties as to their fitness for any purpose. See data sources.