Stillhouse Hollow Lake, TX

Stillhouse Hollow Lake is at 97.9% of conservation capacity as of 2026-10-13, which we classify as near full. That is 0.76 ft below full pool of 622.00 ft. Over the past 30 days the level has fallen 0.04 ft.

The most recent reading at Stillhouse Hollow Lake is 621.24 ft (2026-10-13), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Stillhouse Hollow Lake in our records is 663.99 ft on 2007-07-17. The lowest is 600.00 ft on 1999-09-08. Our record covers about 38 years of readings.

Compared with every October in our records, the current level is higher than 51% of them, which we classify as near full. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Stillhouse Hollow Lake has fallen 0.04 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.

Stillhouse Hollow Lake is -0.47 ft compared with this date last year (621.24 ft today). The full-history chart above covers 38 years, with a record high of 663.99 ft and a record low of 600.00 ft.