Reservoir · California · United States · CDEC
CAPLES LAKE
63.6% full
Capacity
27.55 hm³
Volume stored
18 hm³
Vs month average
85% of normal
Coordinates
38.707°N, 120.048°W
Last updated
2026-10-14
Current fill
63.6%vs 7 days ago
-0.6%losing
vs 1 year ago
-12.8%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
85%of normal
63.6% full on 2026-10-14, against an average of 74.7% for October across 6 years of readings (-11.1 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. 38.707, -120.048 · Open in Google Maps
About CAPLES LAKE
As of October 14, 2026, CAPLES LAKE is filled to 63.6% of its total capacity, holding roughly 18 hm³ of water out of a maximum 28 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.6 pts), and it is 12.8 points below its level on the same date a year earlier.
Across the readings we hold for CAPLES LAKE — 1825 data points between October 16, 2021 and October 14, 2026 — the level has ranged from a low of 52.6% (January 28, 2024) to a high of 99.9% (June 3, 2022). On average the reservoir is fullest around July and at its lowest around March.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 38.707°N, 120.048°W.
Key facts
- Current fill level
- 63.6%
- Water stored
- 18 hm³
- Total capacity
- 28 hm³
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▼ 12.8 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.707°N, 120.048°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 63.6% | 18 |
| 13 Oct 2026 | 63.7% | 18 |
| 12 Oct 2026 | 63.7% | 18 |
| 11 Oct 2026 | 63.8% | 18 |
| 10 Oct 2026 | 63.9% | 18 |
| 9 Oct 2026 | 64.0% | 18 |
| 8 Oct 2026 | 64.1% | 18 |
| 7 Oct 2026 | 64.2% | 18 |
| 6 Oct 2026 | 64.3% | 18 |
| 5 Oct 2026 | 64.4% | 18 |
| 4 Oct 2026 | 64.4% | 18 |
| 3 Oct 2026 | 64.5% | 18 |