Bumping Lake Water Level
Washington · updated daily from the U.S. Bureau of Reclamation
3414.96 ft
Bumping Lake is below average for this time of year and falling (-2.03 ft in the last 7 days).
Change since yesterday: -0.27 ft
Reading as of 2026-08-14 · higher than 33% of August readings on record
Where Bumping Lake sits historically
Today's level compared with every reading in our 4.5-year record for this lake.
Since yesterday
-0.27 ft
7-day change
-2.03 ft
30-day change
-7.81 ft
1-year change
-1.12 ft
Last 30 days
Last 12 months
Full history (4.5 years)
Bumping Lake records and averages
| Current level | 3414.96 ft |
|---|---|
| Record high | 3427.5 ft (2025-12-17) |
| Record low | 3394.79 ft (2024-11-10) |
| Average of all readings | 3414.06 ft |
| Data span | 4.5 years (1,999 readings) |
Frequently asked questions
Is Bumping Lake full right now?
As of 2026-08-14, Bumping Lake sits at 3414.96 ft, which is below average for this time of year.Over the past 30 days the level has fallen 7.81 ft.
What is the water level at Bumping Lake today?
The most recent reading is 3414.96 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Bumping Lake has ever been?
The highest level in our records is 3427.5 ft on 2025-12-17. The lowest is 3394.79 ft on 2024-11-10. Our record covers about 4.5 years of readings.
Is Bumping Lake low for this time of year?
Compared with every August in our records, the current level is higher than 33% of them — below average 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 Bumping Lake 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. Bumping Lake has fallen 7.81 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.
How much has Bumping Lake changed over the past year?
The level is -1.12 ft compared with this date last year (3414.96 ft today). The full-history chart above covers 4.5 years, with a record high of 3427.5 ft and a record low of 3394.79 ft.
Nearby lakes in Washington
Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Washington lake levels.