Reservoir · California · United States · CDEC
MOUNTAIN MEADOWS
20.7% full
Capacity
30.59 hm³
Volume stored
6 hm³
Vs month average
107% of normal
Coordinates
40.283°N, 121.017°W
Last updated
2026-10-13
Current fill
20.7%vs 7 days ago
-3.3%losing
vs 1 year ago
+4.2%year-over-year
7-day trend
↓falling
Drought context
Storage vs October average
107%of normal
20.7% full on 2026-10-13, against an average of 19.4% for October across 6 years of readings (+1.3 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: 2026-10-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.283, -121.017 · Open in Google Maps
About MOUNTAIN MEADOWS
As of October 13, 2026, MOUNTAIN MEADOWS is filled to 20.7% of its total capacity, holding roughly 6 hm³ of water out of a maximum 31 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 3.3 percentage points, and it is 4.2 points above its level on the same date a year earlier.
Across the readings we hold for MOUNTAIN MEADOWS — 1824 data points between October 16, 2021 and October 13, 2026 — the level has ranged from a low of 5.6% (October 16, 2021) to a high of 104.6% (May 23, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 40.283°N, 121.017°W.
Key facts
- Current fill level
- 20.7%
- Water stored
- 6 hm³
- Total capacity
- 31 hm³
- 7-day change
- ▼ 3.3 pts
- Year-on-year
- ▲ 4.2 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 40.283°N, 121.017°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 20.7% | 6 |
| 12 Oct 2026 | 21.0% | 6 |
| 11 Oct 2026 | 21.1% | 6 |
| 10 Oct 2026 | 21.8% | 7 |
| 9 Oct 2026 | 22.0% | 7 |
| 8 Oct 2026 | 23.1% | 7 |
| 7 Oct 2026 | 23.3% | 7 |
| 6 Oct 2026 | 24.0% | 7 |
| 5 Oct 2026 | 24.5% | 7 |
| 4 Oct 2026 | 25.2% | 8 |
| 3 Oct 2026 | 25.2% | 8 |
| 2 Oct 2026 | 25.5% | 8 |