Pat Mayse Lake, TX

Pat Mayse Lake is at 90.0% of conservation capacity as of 2026-10-13, which we classify as near full. That is 2.06 ft below full pool of 451.00 ft. Over the past 30 days the level has fallen 0.66 ft.

The most recent reading at Pat Mayse Lake is 448.94 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 Pat Mayse Lake in our records is 461.56 ft on 2015-12-30. The lowest is 443.39 ft on 2006-10-15. Our record covers about 39 years of readings.

Compared with every October in our records, the current level is higher than 29% 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. Pat Mayse Lake has fallen 0.66 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.

Pat Mayse Lake is -0.76 ft compared with this date last year (448.94 ft today). The full-history chart above covers 39 years, with a record high of 461.56 ft and a record low of 443.39 ft.