Reservoir · California · United States · CDEC
Antelope Lake
88.2% full
Capacity
27.83 hm³
Volume stored
25 hm³
Coordinates
40.180°N, 120.607°W
Last updated
2026-08-02
Current fill
88.2%vs 7 days ago
-1.3%losing
vs 1 year ago
-1.4%year-over-year
7-day trend
→stable
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: 2026-08-02.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.180, -120.607 · Open in Google Maps
About Antelope Lake
As of August 2, 2026, Antelope Lake is filled to 88.2% of its total capacity, holding roughly 25 hm³ of water out of a maximum 28 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-1.3 pts), and it is 1.4 points below its level on the same date a year earlier.
Across the readings we hold for Antelope Lake — 1823 data points between August 5, 2021 and August 2, 2026 — the level has ranged from a low of 59.3% (October 20, 2021) to a high of 105.0% (April 11, 2023). On average the reservoir is fullest around April and at its lowest around November.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 40.180°N, 120.607°W.
Key facts
- Current fill level
- 88.2%
- Water stored
- 25 hm³
- Total capacity
- 28 hm³
- 7-day change
- ▼ 1.3 pts
- Year-on-year
- ▼ 1.4 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 40.180°N, 120.607°W
- Last updated
- August 2, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 2 Aug 2026 | 88.2% | 25 |
| 1 Aug 2026 | 88.5% | 25 |
| 31 Jul 2026 | 88.6% | 25 |
| 30 Jul 2026 | 88.8% | 25 |
| 29 Jul 2026 | 89.0% | 25 |
| 28 Jul 2026 | 89.1% | 25 |
| 27 Jul 2026 | 89.3% | 25 |
| 26 Jul 2026 | 89.5% | 25 |
| 25 Jul 2026 | 89.6% | 25 |
| 24 Jul 2026 | 89.9% | 25 |
| 23 Jul 2026 | 90.0% | 25 |
| 22 Jul 2026 | 90.1% | 25 |
Frequently asked questions
What is the current water level of Antelope Lake?
As of August 2, 2026, Antelope Lake is at 88.2% of its capacity, holding approximately 25 hm³ of water, according to CDEC (CA DWR) data.
Is Antelope Lake reservoir full?
No. As of August 2, 2026, Antelope Lake is high at 88.2% of its capacity, so it is not full.
Is the water level at Antelope Lake rising or falling?
The level at Antelope Lake has been broadly stable over the latest week on record (-1.3 points).
How much water can Antelope Lake hold?
Antelope Lake has a total capacity of 28 hm³.
Where is Antelope Lake reservoir located?
Antelope Lake is located in California, United States, within the California basin (coordinates 40.180°N, 120.607°W).
What is Antelope Lake used for?
Antelope Lake is used primarily for multiple purposes, and is managed by CDEC.