Horseshoe Reservoir Water Level
Arizona · updated daily from the U.S. Geological Survey
90.31 ft
Horseshoe Reservoir is current reading available and falling (-0.70 ft in the last 7 days).
Change since yesterday: -0.12 ft
Reading as of 2026-08-15
Where Horseshoe Reservoir sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
-0.12 ft
7-day change
-0.70 ft
30-day change
-0.61 ft
1-year change
— ft
Last 30 days
Last 12 months
Horseshoe Reservoir records and averages
| Current level | 90.31 ft |
|---|---|
| Record high | 105.34 ft (2026-05-19) |
| Record low | 90.31 ft (2026-08-15) |
| Average of all readings | 98.56 ft |
| Data span | 0.3 years (121 readings) |
Frequently asked questions
Is Horseshoe Reservoir full right now?
As of 2026-08-15, Horseshoe Reservoir sits at 90.31 ft, which is current reading available.Over the past 30 days the level has fallen 0.61 ft.
What is the water level at Horseshoe Reservoir today?
The most recent reading is 90.31 ft (2026-08-15), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Horseshoe Reservoir has ever been?
The highest level in our records is 105.34 ft on 2026-05-19. The lowest is 90.31 ft on 2026-08-15. Our record covers about 0.3 years of readings.
Why is Horseshoe Reservoir low 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. Horseshoe Reservoir has fallen 0.61 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Horseshoe Reservoir changed over the past year?
Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 105.34 ft and a record low of 90.31 ft.
Nearby lakes in Arizona
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Arizona lake levels.