Tioga Lake, PA

As of 2026-10-13, Tioga Lake sits at 1081.24 ft. That is 0.24 ft above full pool of 1081.00 ft. It is still 49.8 ft below the flood pool of 1131.00 ft. Over the past 30 days the level has fallen 0.33 ft.

The most recent reading at Tioga Lake is 1081.24 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.

Readings for Tioga Lake run from 1081.11 ft to 1081.99 ft over the 130 days on file, which begin 2026-06-06. That window is shorter than a year, so neither end is a record for the lake. A lake's range includes a full seasonal cycle, and this gauge has not yet published one.

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. Tioga Lake has fallen 0.33 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

Year-over-year comparison is not available for Tioga Lake yet. The published series on this page covers 130 days, from 1081.11 ft to 1081.99 ft. That is not long enough to describe the lake's historical range.