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Lake levels › Texas › Somerville Lake

Somerville Lake water level today

236.46 ft above sea level (the reading for October 20, 2026). The lake is 88.8% full, 1.54 ft below full pool (238.00 ft). Somerville Lake is falling slowly: down 0.18 ft in the past 7 days and down 0.37 ft over 30 days.

Texas Water Development Board publishes one reading per day for Somerville Lake; today's value appears once the agency posts it, usually the next morning.

Level now236.46 ft
Percent full88.8%
vs full pool (238.0)−1.54 ft
Past 24 hours−0.01 ft
Past 7 days−0.18 ft
Past 30 days−0.37 ft
vs 1 year ago+0.66 ft

Somerville Lake level over the last 12 months

234235237239241 Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26 full pool 238.0
Daily elevation in feet, last 12 months.

12-month low: 234.09 ft (April 1, 2026). High: 240.79 ft (June 20, 2026). Swing: 6.70 ft.

Daily Somerville Lake levels, last 30 days

DateElevation (ft)Change
Oct 20, 2026236.46−0.01 ft
Oct 19, 2026236.47−0.03 ft
Oct 18, 2026236.50−0.02 ft
Oct 17, 2026236.52−0.07 ft
Oct 16, 2026236.59−0.03 ft
Oct 15, 2026236.62−0.01 ft
Oct 14, 2026236.63−0.01 ft
Oct 13, 2026236.64±0.00 ft
Oct 12, 2026236.64−0.03 ft
Oct 11, 2026236.67−0.01 ft
Oct 10, 2026236.68−0.02 ft
Oct 9, 2026236.70−0.02 ft
Oct 8, 2026236.72−0.01 ft
Oct 7, 2026236.73−0.02 ft
Oct 6, 2026236.75−0.02 ft
Oct 5, 2026236.77−0.02 ft
Oct 4, 2026236.79+0.01 ft
Oct 3, 2026236.78±0.00 ft
Oct 2, 2026236.78+0.12 ft
Oct 1, 2026236.66+0.04 ft
Sep 30, 2026236.62−0.03 ft
Sep 29, 2026236.65−0.02 ft
Sep 28, 2026236.67−0.03 ft
Sep 27, 2026236.70−0.02 ft
Sep 26, 2026236.72−0.02 ft
Sep 25, 2026236.74−0.02 ft
Sep 24, 2026236.76−0.02 ft
Sep 23, 2026236.78−0.01 ft
Sep 22, 2026236.79−0.02 ft
Sep 21, 2026236.81−0.02 ft

Monthly average levels

MonthAverageLowHigh
Nov 2025235.49235.23235.75
Dec 2025235.17235.06235.24
Jan 2026235.03234.96235.09
Feb 2026234.99234.91235.07
Mar 2026234.73234.11234.91
Apr 2026234.47234.09235.01
May 2026236.74235.09238.30
Jun 2026239.32238.30240.79
Jul 2026239.59238.97240.57
Aug 2026238.02237.43239.02
Sep 2026236.93236.62237.35
Oct 2026 *236.66236.46236.79

* partial month or year.

Somerville Lake year by year

YearLowHighAverage
2026 *234.09 Apr 1240.79 Jun 21236.66
2025235.06 Dec 31239.43 Jun 18236.75
2024231.87 Jan 2240.65 May 22237.56
2023 *231.79 Dec 20232.74 Oct 16232.06

Somerville Lake on this date in past years

YearLevel on this dateToday vs then
2025235.80 ft+0.66 ft
2024236.13 ft+0.33 ft
2023232.69 ft+3.77 ft

Highest and lowest levels on record

TWDB records for Somerville Lake go back to 1995. The lowest level in that record is 227.61 ft (December 13, 2011) and the highest is 259.77 ft (May 29, 2016). Today the lake is 8.85 ft above its record low. At full conservation pool it holds 150,293 acre-feet and covers about 10,587 acres.

Is Somerville Lake full?

Somerville Lake is 88.8% full by conservation storage, measured against its top of conservation pool at 238.00 ft. It would need to rise 1.54 ft to be full.

Is Somerville Lake rising or falling?

Somerville Lake is falling slowly: down 0.18 ft in the past 7 days and down 0.37 ft over 30 days. In the latest day it moved −0.01 ft.

How does Somerville Lake compare with last year?

Compared with the same date last year, the lake is 0.66 ft higher (84.2% full then, 88.8% now). Two years ago on this date it stood at 236.13 ft.

Data source

Texas Water Development Board (Water Data for Texas), gauge Somerville; readings since Oct 16, 2023. Official source · how we collect it.

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