Reservoir · California · United States · CDEC
Lake Almanor
90.2% full
Capacity
1,406.17 hm³
Volume stored
1268 hm³
Coordinates
40.218°N, 121.173°W
Last updated
2026-08-03
Current fill
90.2%vs 7 days ago
-0.9%losing
vs 1 year ago
+2.7%year-over-year
7-day trend
→stable
Data source: CDEC — California Dept of Water Resources — 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: 2026-08-03.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.218, -121.173 · Open in Google Maps
About Lake Almanor
As of August 3, 2026, Lake Almanor is filled to 90.2% of its total capacity, holding roughly 1,268 hm³ of water out of a maximum 1,406 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.9 pts), and it is 2.7 points above its level on the same date a year earlier.
Across the readings we hold for Lake Almanor — 1823 data points between August 5, 2021 and August 3, 2026 — the level has ranged from a low of 4.6% (August 31, 2021) to a high of 98.6% (May 26, 2024). On average the reservoir is fullest around June and at its lowest around October.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 40.218°N, 121.173°W.
Key facts
- Current fill level
- 90.2%
- Water stored
- 1,268 hm³
- Total capacity
- 1,406 hm³
- 7-day change
- ▼ 0.9 pts
- Year-on-year
- ▲ 2.7 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 40.218°N, 121.173°W
- Last updated
- August 3, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 3 Aug 2026 | 90.2% | 1,268 |
| 2 Aug 2026 | 90.2% | 1,268 |
| 1 Aug 2026 | 90.3% | 1,270 |
| 31 Jul 2026 | 90.4% | 1,271 |
| 30 Jul 2026 | 90.6% | 1,274 |
| 29 Jul 2026 | 90.8% | 1,277 |
| 28 Jul 2026 | 91.0% | 1,279 |
| 27 Jul 2026 | 91.1% | 1,281 |
| 26 Jul 2026 | 91.2% | 1,282 |
| 25 Jul 2026 | 91.3% | 1,284 |
| 24 Jul 2026 | 91.4% | 1,286 |
| 23 Jul 2026 | 91.6% | 1,289 |
Frequently asked questions
What is the current water level of Lake Almanor?
As of August 3, 2026, Lake Almanor is at 90.2% of its capacity, holding approximately 1,268 hm³ of water, according to CDEC (CA DWR) data.
Is Lake Almanor reservoir full?
No. As of August 3, 2026, Lake Almanor is high at 90.2% of its capacity, so it is not full.
Is the water level at Lake Almanor rising or falling?
The level at Lake Almanor has been broadly stable over the latest week on record (-0.9 points).
How much water can Lake Almanor hold?
Lake Almanor has a total capacity of 1,406 hm³.
Where is Lake Almanor reservoir located?
Lake Almanor is located in California, United States, within the California basin (coordinates 40.218°N, 121.173°W).
What is Lake Almanor used for?
Lake Almanor is used primarily for multiple purposes, and is managed by CDEC.