Kirby Lake, TX

As of 2026-10-12, Kirby Lake sits at 1781.36 ft, which is about average for this time of year. Over the past 30 days the level has fallen 0.70 ft.

The most recent reading at Kirby Lake is 1781.36 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Kirby Lake in our records is 1787.20 ft on 2019-05-08. The lowest is 1778.03 ft on 2024-09-01. Our record covers about 15 years of readings.

Compared with every October in our records, the current level is higher than 41% 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. Kirby Lake has fallen 0.70 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

Kirby Lake is +0.23 ft compared with this date last year (1781.36 ft today). The full-history chart above covers 15 years, with a record high of 1787.20 ft and a record low of 1778.03 ft.