Reservoir · Washington · United States · BOR RISE
Cle Elum Lake and Dam
25.2% full
Capacity
539.03 hm³
Volume stored
136 hm³
Coordinates
47.246°N, 121.073°W
Last updated
2026-08-11
Current fill
25.2%vs 7 days ago
-8.2%losing
vs 1 year ago
+12.9%year-over-year
7-day trend
↓falling
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-08-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 47.246, -121.073 · Open in Google Maps
About Cle Elum Lake and Dam
As of August 11, 2026, Cle Elum Lake and Dam is filled to 25.2% of its total capacity, holding roughly 136 hm³ of water out of a maximum 539 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 8.2 percentage points, and it is 12.9 points above its level on the same date a year earlier.
Across the readings we hold for Cle Elum Lake and Dam — 2187 data points between August 15, 2021 and August 11, 2026 — the level has ranged from a low of 2.9% (October 18, 2024) to a high of 100.1% (June 29, 2022). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Washington basin at 47.246°N, 121.073°W.
Key facts
- Current fill level
- 25.2%
- Water stored
- 136 hm³
- Total capacity
- 539 hm³
- 7-day change
- ▼ 8.2 pts
- Year-on-year
- ▲ 12.9 pts
- Primary use
- Multipurpose
- River basin
- Washington
- Operator
- BOR
- Coordinates
- 47.246°N, 121.073°W
- Last updated
- August 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Aug 2026 | 25.2% | 136 |
| 10 Aug 2026 | 26.3% | 142 |
| 9 Aug 2026 | 27.4% | 148 |
| 8 Aug 2026 | 28.6% | 154 |
| 7 Aug 2026 | 29.8% | 161 |
| 6 Aug 2026 | 31.0% | 167 |
| 5 Aug 2026 | 32.2% | 174 |
| 4 Aug 2026 | 33.4% | 180 |
| 3 Aug 2026 | 34.6% | 186 |
| 2 Aug 2026 | 35.8% | 193 |
| 1 Aug 2026 | 37.0% | 200 |
| 31 Jul 2026 | 38.3% | 207 |
Frequently asked questions
What is the current water level of Cle Elum Lake and Dam?
As of August 11, 2026, Cle Elum Lake and Dam is at 25.2% of its capacity, holding approximately 136 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Cle Elum Lake and Dam reservoir full?
No. As of August 11, 2026, Cle Elum Lake and Dam is low at 25.2% of its capacity, so it is not full.
Is the water level at Cle Elum Lake and Dam rising or falling?
The level at Cle Elum Lake and Dam is falling — it dropped 8.2 percentage points over the latest week on record.
How much water can Cle Elum Lake and Dam hold?
Cle Elum Lake and Dam has a total capacity of 539 hm³.
Where is Cle Elum Lake and Dam reservoir located?
Cle Elum Lake and Dam is located in Washington, United States, within the Washington basin (coordinates 47.246°N, 121.073°W).
What is Cle Elum Lake and Dam used for?
Cle Elum Lake and Dam is used primarily for multiple purposes, and is managed by BOR.