Monticello Reservoir Water Level
Texas · updated daily from the Texas Water Development Board
335.87 ft
Monticello Reservoir is low for this time of year and steady (-0.12 ft in the last 7 days).
4.13 ft below full pool of 340.00 ft · change since yesterday -0.02 ft
Reading as of 2026-08-14 · higher than 14% of August readings on record
Where Monticello Reservoir sits historically
Today's level compared with every reading in our 5.0-year record for this lake.
Since yesterday
-0.02 ft
7-day change
-0.12 ft
30-day change
-0.65 ft
1-year change
-0.85 ft
Full pool
340.0 ft
Last 30 days
Last 12 months
Full history (5.0 years)
Monticello Reservoir records and averages
| Current level | 335.87 ft |
|---|---|
| Record high | 339.62 ft (2024-06-05) |
| Record low | 335.38 ft (2022-10-22) |
| Average of all readings | 336.7 ft |
| Data span | 5.0 years (1,823 readings) |
Frequently asked questions
Is Monticello Reservoir full right now?
As of 2026-08-14, Monticello Reservoir sits at 335.87 ft, which is low for this time of year.Over the past 30 days the level has fallen 0.65 ft.
What is the water level at Monticello Reservoir today?
The most recent reading is 335.87 ft (2026-08-14), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Monticello Reservoir has ever been?
The highest level in our records is 339.62 ft on 2024-06-05. The lowest is 335.38 ft on 2022-10-22. Our record covers about 5.0 years of readings.
Is Monticello Reservoir low for this time of year?
Compared with every August in our records, the current level is higher than 14% of them — low 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.
Why is Monticello Reservoir changing right now?
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. Monticello Reservoir has fallen 0.65 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.
How much has Monticello Reservoir changed over the past year?
The level is -0.85 ft compared with this date last year (335.87 ft today). The full-history chart above covers 5.0 years, with a record high of 339.62 ft and a record low of 335.38 ft.
Nearby lakes in Texas
Source: the Texas Water Development Board. Readings are provisional and subject to revision by the publishing agency. All Texas lake levels.