Reservoir · California · United States · CDEC
DONNELLS
25.7% full
Capacity
79.56 hm³
Volume stored
20 hm³
Vs month average
55% of normal
Coordinates
38.329°N, 119.960°W
Last updated
2026-11-01
Current fill
25.7%vs 7 days ago
-0.9 pplosing
vs 1 year ago
+3.8 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs November average
55%of normal
25.7% full on 2026-11-01, against an average of 46.7% for November across 6 years of readings (-21.0 points).
Drought Monitor at this site · 27 October 2026
D0abnormally dry
The ground at DONNELLS's coordinates falls inside the D0 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. California drought figures →
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: 2026-11-01.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.329°N, 119.960°W · Open in Google Maps
About DONNELLS
As of November 1, 2026, DONNELLS is filled to 25.7% of its total capacity, holding 20.45 hm³ of water out of a maximum 79.56 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (-0.9 pp), and it is 3.8 points above its level on the same date a year earlier.
Across the readings we hold for DONNELLS — 1824 data points between November 3, 2021 and November 1, 2026 — the level has ranged from a low of 13.8% (March 6, 2024) to a high of 99.9% (May 22, 2026). On average the reservoir is fullest around June and at its lowest around February.
It is operated by CDEC primarily for multiple purposes. It is at 38.329°N, 119.960°W.
Key facts
- Current fill level
- 25.7% of total capacity
- Water stored
- 20.45 hm³
- Total capacity
- 79.56 hm³
- 7-day change
- ▼ 0.9 pp
- Year-on-year
- ▲ 3.8 pp
- Primary use
- Multipurpose
- Operator
- CDEC
- Coordinates
- 38.329°N, 119.960°W
- Last updated
- November 1, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 1 Nov 2026 | 25.7% | 20.45 |
| 31 Oct 2026 | 25.7% | 20.45 |
| 30 Oct 2026 | 25.7% | 20.47 |
| 29 Oct 2026 | 25.8% | 20.56 |
| 28 Oct 2026 | 26.0% | 20.7 |
| 27 Oct 2026 | 26.2% | 20.84 |
| 26 Oct 2026 | 26.3% | 20.96 |
| 25 Oct 2026 | 26.6% | 21.13 |
| 24 Oct 2026 | 26.8% | 21.29 |
| 23 Oct 2026 | 26.9% | 21.38 |
| 22 Oct 2026 | 27.0% | 21.48 |
| 21 Oct 2026 | 27.2% | 21.66 |