Reservoir · California · United States · CDEC
New Hogan Lake
82.5% full
Capacity
268.17 hm³
Volume stored
221 hm³
Coordinates
38.152°N, 120.812°W
Last updated
2026-08-03
Current fill
82.5%vs 7 days ago
-1.5%losing
vs 1 year ago
-0.6%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: 2026-08-03.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.152, -120.812 · Open in Google Maps
About New Hogan Lake
As of August 3, 2026, New Hogan Lake is filled to 82.5% of its total capacity, holding roughly 221 hm³ of water out of a maximum 268 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-1.5 pts), and it sits close to where it was a year earlier.
Across the readings we hold for New Hogan Lake — 1824 data points between August 5, 2021 and August 3, 2026 — the level has ranged from a low of 22.7% (November 28, 2022) to a high of 105.0% (January 17, 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 38.152°N, 120.812°W.
Key facts
- Current fill level
- 82.5%
- Water stored
- 221 hm³
- Total capacity
- 268 hm³
- 7-day change
- ▼ 1.5 pts
- Year-on-year
- ▼ 0.6 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 38.152°N, 120.812°W
- Last updated
- August 3, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 3 Aug 2026 | 82.5% | 221 |
| 2 Aug 2026 | 82.7% | 222 |
| 1 Aug 2026 | 82.9% | 222 |
| 31 Jul 2026 | 83.1% | 223 |
| 30 Jul 2026 | 83.4% | 224 |
| 29 Jul 2026 | 83.6% | 224 |
| 28 Jul 2026 | 83.8% | 225 |
| 27 Jul 2026 | 84.0% | 225 |
| 26 Jul 2026 | 84.2% | 226 |
| 25 Jul 2026 | 84.5% | 226 |
| 24 Jul 2026 | 84.7% | 227 |
| 23 Jul 2026 | 84.9% | 228 |
Frequently asked questions
What is the current water level of New Hogan Lake?
As of August 3, 2026, New Hogan Lake is at 82.5% of its capacity, holding approximately 221 hm³ of water, according to CDEC (CA DWR) data.
Is New Hogan Lake reservoir full?
No. As of August 3, 2026, New Hogan Lake is high at 82.5% of its capacity, so it is not full.
Is the water level at New Hogan Lake rising or falling?
The level at New Hogan Lake has been broadly stable over the latest week on record (-1.5 points).
How much water can New Hogan Lake hold?
New Hogan Lake has a total capacity of 268 hm³.
Where is New Hogan Lake reservoir located?
New Hogan Lake is located in California, United States, within the California basin (coordinates 38.152°N, 120.812°W).
What is New Hogan Lake used for?
New Hogan Lake is used primarily for multiple purposes, and is managed by CDEC.