Dillon Lake, OH

As of 2026-10-13, Dillon Lake sits at 737.79 ft, which is about average for this time of year. That is 4.09 ft above full pool of 733.70 ft. It is still 52.2 ft below the flood pool of 790.00 ft. Over the past 30 days the level has fallen 2.03 ft.

The most recent reading at Dillon Lake is 737.79 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 Dillon Lake in our records is 771.21 ft on 2022-02-27. The lowest is 734.20 ft on 2021-01-25. Our record covers about 6 years of readings.

Compared with every October in our records, the current level is higher than 59% of them, which we classify as about average 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. Dillon Lake has fallen 2.03 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

Dillon Lake is -0.21 ft compared with this date last year (737.79 ft today). The full-history chart above covers 6 years, with a record high of 771.21 ft and a record low of 734.20 ft.