Reservoir · California · United States · CDEC
OROVILLE DAM
41.6% full
Capacity
4,366.53 hm³
Volume stored
1815 hm³
Vs month average
83% of normal
Coordinates
39.540°N, 121.493°W
Last updated
2026-10-29
Current fill
41.6%vs 7 days ago
-0.6 pplosing
vs 1 year ago
-10.4 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
83%of normal
41.6% full on 2026-10-29, against an average of 50.2% for October across 6 years of readings (-8.6 points).
Drought Monitor at this site · 27 October 2026
D0abnormally dry
The ground at OROVILLE DAM'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: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.540°N, 121.493°W · Open in Google Maps
About OROVILLE DAM
As of October 29, 2026, OROVILLE DAM is filled to 41.6% of its total capacity, holding 1,815 hm³ of water out of a maximum 4,367 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 pp), and it is 10.4 points below its level on the same date a year earlier.
Across the readings we hold for OROVILLE DAM — 1825 data points between October 31, 2021 and October 29, 2026 — the level has ranged from a low of 27.2% (November 30, 2022) to a high of 99.9% (June 20, 2023). On average the reservoir is fullest around May and at its lowest around November.
It is operated by CDEC primarily for multiple purposes. It is at 39.540°N, 121.493°W.
Key facts
- Current fill level
- 41.6% of total capacity
- Water stored
- 1,815 hm³
- Total capacity
- 4,367 hm³
- 7-day change
- ▼ 0.6 pp
- Year-on-year
- ▼ 10.4 pp
- Primary use
- Multipurpose
- Operator
- CDEC
- Coordinates
- 39.540°N, 121.493°W
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 41.6% | 1,815 |
| 28 Oct 2026 | 41.6% | 1,817 |
| 27 Oct 2026 | 41.6% | 1,818 |
| 26 Oct 2026 | 41.7% | 1,821 |
| 25 Oct 2026 | 41.8% | 1,825 |
| 24 Oct 2026 | 41.9% | 1,831 |
| 23 Oct 2026 | 42.1% | 1,837 |
| 22 Oct 2026 | 42.2% | 1,843 |
| 21 Oct 2026 | 42.4% | 1,850 |
| 20 Oct 2026 | 42.5% | 1,857 |
| 19 Oct 2026 | 42.7% | 1,864 |
| 18 Oct 2026 | 42.8% | 1,870 |