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Monticello Reservoir Water Level Today
Texas · Official data from the Texas Water Development Board
Water level today · September 28, 2026 (daily reading)
4.9 ft below normal
for the date, below the range seen in 8 of 10 years
334.87 ft above sea level
- vs full pool
- −5.1 ft
- Storage
- 73.4% full
- Past 7 days
- −0.2 ft
- vs 1 year ago
- −1.6 ft
What do these numbers mean?
- Water level
- The height of the lake surface in feet above sea level, as measured by the official gauge.
- Full pool
- The level the lake is normally kept at when it is full (top of conservation pool). Above it, the lake is storing flood water.
- Normal for the date
- The typical (median) level on this calendar date across 2006-2025. The normal range is where the lake stood in 8 of 10 years.
- % full
- How much of the reservoir's conservation storage is in use, as reported by the Texas Water Development Board.
Monticello Reservoir water level chart (last 2 years)
How full is Monticello Reservoir right now?
Monticello Reservoir is 5.1 ft below full pool (340.0 ft). By conservation storage the reservoir is 73.4% full.
Over the past 7 days the level fell 0.18 ft; over 30 days it fell 0.7 ft.
One year ago the lake stood at 336.5 ft, so it is −1.6 ft compared with the same day last year.
Is Monticello Reservoir above or below normal?
For September 28, the normal level is about 339.7 ft (the normal range is 335.9 ft to 340.4 ft). Today's level is −4.9 ft compared with normal, below normal.
“Normal” here means the median level recorded on this calendar date across 2006-2025. Many reservoirs are drawn down on purpose in fall and winter, so a level below full pool can still be completely normal for the season.
Recent history
| Highest daily level (last 2 years) | 338.71 ft | May 7, 2025 |
| Lowest daily level (last 2 years) | 334.87 ft | September 28, 2026 |
| Same day last year | 336.51 ft | −1.6 ft vs today |
| Full pool | 340.00 ft | top of conservation pool |
Frequently asked questions
- What is the water level of Monticello Reservoir today?
- The latest reading is 334.87 ft above sea level, reported by the Texas Water Development Board on September 28, 2026.
- Is Monticello Reservoir full?
- No. Monticello Reservoir is 5.1 ft below its full pool of 340.0 ft and 73.4% full by conservation storage.
- What is a normal water level for Monticello Reservoir at this time of year?
- Based on daily readings from 2006-2025, the typical (median) level for this date is 339.7 ft, and 8 out of 10 years fall between 335.9 ft and 340.4 ft.
- What is the full pool elevation of Monticello Reservoir?
- Full pool for Monticello Reservoir is 340.0 ft (top of conservation pool), according to the Texas Water Development Board.
- What were the highest and lowest levels in the last two years?
- The highest daily level in the last two years was 338.7 ft on May 7, 2025; the lowest was 334.9 ft on September 28, 2026.
Where this data comes from
The water level is published by the Texas Water Development Board (station Monticello) and refreshed on this page every day. Full pool comes from Texas Water Development Board; the normal range is calculated from official daily readings for 2006-2025. Recent readings are provisional and may be revised. See data sources & methodology.