Loyalhanna Lake, PA

As of 2026-10-13, Loyalhanna Lake sits at 930.62 ft, which is high for this time of year. That is 21.10 ft above full pool of 909.52 ft. It is still 43.9 ft below the flood pool of 974.52 ft. Over the past 30 days the level has risen 2.70 ft.

The most recent reading at Loyalhanna Lake is 930.62 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 Loyalhanna Lake in our records is 955.94 ft on 2024-04-05. The lowest is 916.97 ft on 2018-01-08. Our record covers about 12 years of readings.

Compared with every October in our records, the current level is higher than 98% of them, which we classify as high 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. Loyalhanna Lake has risen 2.70 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

Loyalhanna Lake is +7.14 ft compared with this date last year (930.62 ft today). The full-history chart above covers 12 years, with a record high of 955.94 ft and a record low of 916.97 ft.