Lake Granbury, TX

Lake Granbury is at 87.1% of conservation capacity as of 2026-10-13, which we classify as below full. That is 2.21 ft below full pool of 692.70 ft. Over the past 30 days the level has risen 0.02 ft.

The most recent reading at Lake Granbury is 690.49 ft (2026-10-13), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Lake Granbury in our records is 692.96 ft on 1989-05-17. The lowest is 681.50 ft on 2014-06-21. Our record covers about 39 years of readings.

Compared with every October in our records, the current level is higher than 22% of them, which we classify as below full. 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. Lake Granbury has risen 0.02 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.

Lake Granbury is -1.22 ft compared with this date last year (690.49 ft today). The full-history chart above covers 39 years, with a record high of 692.96 ft and a record low of 681.50 ft.