Reservoir · California · United States · CDEC
BEARDSLEY LAKE
58.2% full
Capacity
120.26 hm³
Volume stored
70 hm³
Vs month average
100% of normal
Coordinates
38.203°N, 120.075°W
Last updated
2026-10-14
Current fill
58.2%vs 7 days ago
-3.4%losing
vs 1 year ago
+0.4%year-over-year
7-day trend
↓falling
Drought context
Storage vs October average
100%of normal
58.2% full on 2026-10-14, against an average of 58.4% for October across 6 years of readings (-0.2 points).
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: 2026-10-14.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.203, -120.075 · Open in Google Maps
About BEARDSLEY LAKE
As of October 14, 2026, BEARDSLEY LAKE is filled to 58.2% of its total capacity, holding roughly 70 hm³ of water out of a maximum 120 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 3.4 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for BEARDSLEY LAKE — 1825 data points between October 16, 2021 and October 14, 2026 — the level has ranged from a low of 31.4% (December 20, 2025) to a high of 99.7% (June 26, 2024). On average the reservoir is fullest around June and at its lowest around December.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.203°N, 120.075°W.
Key facts
- Current fill level
- 58.2%
- Water stored
- 70 hm³
- Total capacity
- 120 hm³
- 7-day change
- ▼ 3.4 pts
- Year-on-year
- ▲ 0.4 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.203°N, 120.075°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 58.2% | 70 |
| 13 Oct 2026 | 58.8% | 71 |
| 12 Oct 2026 | 59.3% | 71 |
| 11 Oct 2026 | 59.8% | 72 |
| 10 Oct 2026 | 60.3% | 73 |
| 9 Oct 2026 | 60.9% | 73 |
| 8 Oct 2026 | 61.3% | 74 |
| 7 Oct 2026 | 61.6% | 74 |
| 6 Oct 2026 | 61.7% | 74 |
| 5 Oct 2026 | 61.6% | 74 |
| 4 Oct 2026 | 61.4% | 74 |
| 3 Oct 2026 | 61.3% | 74 |