Conconcully Reservoir Water Level
Washington · updated daily from the U.S. Geological Survey
2261.56 ft
Conconcully Reservoir is current reading available and falling (-2.31 ft in the last 7 days).
Change since yesterday: -0.28 ft
Reading as of 2026-08-15
Where Conconcully Reservoir sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
-0.28 ft
7-day change
-2.31 ft
30-day change
-9.31 ft
1-year change
— ft
Last 30 days
Last 12 months
Conconcully Reservoir records and averages
| Current level | 2261.56 ft |
|---|---|
| Record high | 2280.82 ft (2026-05-10) |
| Record low | 2261.56 ft (2026-08-15) |
| Average of all readings | 2274.71 ft |
| Data span | 0.3 years (118 readings) |
Frequently asked questions
Is Conconcully Reservoir full right now?
As of 2026-08-15, Conconcully Reservoir sits at 2261.56 ft, which is current reading available.Over the past 30 days the level has fallen 9.31 ft.
What is the water level at Conconcully Reservoir today?
The most recent reading is 2261.56 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 Conconcully Reservoir has ever been?
The highest level in our records is 2280.82 ft on 2026-05-10. The lowest is 2261.56 ft on 2026-08-15. Our record covers about 0.3 years of readings.
Why is Conconcully 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. Conconcully Reservoir has fallen 9.31 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Conconcully 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 2280.82 ft and a record low of 2261.56 ft.
Nearby lakes in Washington
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Washington lake levels.