Wister Lake, OK

As of 2026-10-13, Wister Lake sits at 474.97 ft, which is low for this time of year. That is 3.03 ft below full pool of 478.00 ft. Over the past 30 days the level has fallen 1.19 ft.

The most recent reading at Wister Lake is 474.97 ft (2026-10-13), sourced from the U.S. Army Corps of Engineers. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Wister Lake in our records is 508.28 ft on 2015-05-26. The lowest is 472.23 ft on 2024-11-02. Our record covers about 12 years of readings.

Compared with every October in our records, the current level is higher than 14% of them, which we classify as low for this time of year. 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. Wister Lake has fallen 1.19 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

Wister Lake is -0.76 ft compared with this date last year (474.97 ft today). The full-history chart above covers 12 years, with a record high of 508.28 ft and a record low of 472.23 ft.