Falcon Reservoir water level today
On Oct 28, 2026, Falcon Reservoir is at 260.81 ft, 20.1% full (40.39 ft below full pool). That is 17.4 points below normal for this date.
Source: Texas Water Development Board · storage 313,524 of 1,562,367 acre-ft · provisional data
Falcon Reservoir percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%Sep 19, 1958
- Record low
- 0.2%Aug 23, 1953
- 12-month high
- 27.8%Jul 24, 2026
- 12-month low
- 14.9%Nov 23, 2025
- Last time full
- Feb 27, 2011
- Change in 1 year
- +7.15 ft+4.2 pts
About Falcon Reservoir
- River basin
- Rio Grande
- Full pool (top of conservation pool)
- 301.20 ft
- Conservation capacity
- 1,562,367 acre-ft
- Surface area today
- 27,727 acres
- Dead pool elevation
- 204.34 ft
- Flood control reservoir
- Yes
- Water supply for
- Brownsville
- Data since
- Aug 23, 1953
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 19% | 21% | 20% | 20% | 22% | 24% | 26% | 25% | 21% | 20% | — | — |
| 2025 | 15% | 16% | 16% | 16% | 15% | 15% | 16% | 16% | 16% | 16% | 15% | 16% |
| 2024 | 17% | 18% | 16% | 14% | 10% | 11% | 13% | 13% | 13% | 14% | 13% | 13% |
| 2023 | 14% | 13% | 12% | 18% | 22% | 21% | 15% | 11% | 10% | 9% | 13% | 16% |
| 2022 | 22% | 23% | 23% | 20% | 19% | 18% | 13% | 11% | 15% | 15% | 14% | 15% |
| 2021 | 29% | 27% | 25% | 22% | 24% | 26% | 25% | 25% | 22% | 20% | 21% | 22% |
| 2020 | 32% | 32% | 31% | 28% | 28% | 31% | 26% | 27% | 28% | 30% | 31% | 30% |
| 2019 | 50% | 51% | 50% | 49% | 45% | 38% | 35% | 29% | 29% | 30% | 31% | 32% |
| 2018 | 55% | 54% | 52% | 44% | 38% | 30% | 31% | 28% | 36% | 45% | 49% | 51% |
| 2017 | 38% | 39% | 40% | 41% | 34% | 32% | 26% | 25% | 29% | 51% | 52% | 54% |
Frequently asked questions
Is Falcon Reservoir full?
Not quite. On Oct 28, 2026 Falcon Reservoir was 20.1% full, 40.39 feet below its full pool elevation of 301.20 ft. It was last full on Feb 27, 2011.
What is the normal level of Falcon Reservoir for this time of year?
Between 1996 and 2025, Falcon Reservoir averaged 37.5% full around Oct 28, and 8 in 10 years it was between 15.4% and 65.5%. Today it is −17.4 percentage points below that average.
What is the lowest Falcon Reservoir has been?
In the TWDB record, which starts in 1953, the lowest daily value was 0.2% on Aug 23, 1953. The highest was 100.0% on Sep 19, 1958.
How often is the Falcon Reservoir water level updated?
TWDB publishes one reading per day for each reservoir. We check for new data every 2 hours and show the date of the reading next to the level. Recent values are provisional.
What does percent full mean?
It is the water stored in the conservation pool divided by the conservation capacity (1,562,367 acre-feet for Falcon Reservoir). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.