Reservoir · California · United States · CDEC
Millerton Lake
53.7% full
Capacity
642.03 hm³
Volume stored
345 hm³
Coordinates
37.001°N, 119.705°W
Last updated
2026-08-02
Current fill
53.7%vs 7 days ago
-5.6%losing
vs 1 year ago
-5.7%year-over-year
7-day trend
↓falling
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. 37.001, -119.705 · Open in Google Maps
About Millerton Lake
As of August 2, 2026, Millerton Lake is filled to 53.7% of its total capacity, holding roughly 345 hm³ of water out of a maximum 642 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 5.6 percentage points, and it is 5.7 points below its level on the same date a year earlier.
Across the readings we hold for Millerton Lake — 1822 data points between August 5, 2021 and August 2, 2026 — the level has ranged from a low of 26.6% (November 8, 2023) to a high of 101.6% (July 19, 2023). On average the reservoir is fullest around June and at its lowest around November.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 37.001°N, 119.705°W.
Key facts
- Current fill level
- 53.7%
- Water stored
- 345 hm³
- Total capacity
- 642 hm³
- 7-day change
- ▼ 5.6 pts
- Year-on-year
- ▼ 5.7 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 37.001°N, 119.705°W
- Last updated
- August 2, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 2 Aug 2026 | 53.7% | 345 |
| 1 Aug 2026 | 54.1% | 347 |
| 31 Jul 2026 | 54.5% | 350 |
| 30 Jul 2026 | 55.4% | 356 |
| 29 Jul 2026 | 56.5% | 363 |
| 28 Jul 2026 | 57.5% | 369 |
| 27 Jul 2026 | 58.6% | 376 |
| 26 Jul 2026 | 59.3% | 381 |
| 25 Jul 2026 | 59.9% | 384 |
| 24 Jul 2026 | 60.4% | 388 |
| 23 Jul 2026 | 60.9% | 391 |
| 22 Jul 2026 | 61.6% | 395 |
Frequently asked questions
What is the current water level of Millerton Lake?
As of August 2, 2026, Millerton Lake is at 53.7% of its capacity, holding approximately 345 hm³ of water, according to CDEC (CA DWR) data.
Is Millerton Lake reservoir full?
No. As of August 2, 2026, Millerton Lake is within its normal operating range at 53.7% of its capacity, so it is not full.
Is the water level at Millerton Lake rising or falling?
The level at Millerton Lake is falling — it dropped 5.6 percentage points over the latest week on record.
How much water can Millerton Lake hold?
Millerton Lake has a total capacity of 642 hm³.
Where is Millerton Lake reservoir located?
Millerton Lake is located in California, United States, within the California basin (coordinates 37.001°N, 119.705°W).
What is Millerton Lake used for?
Millerton Lake is used primarily for multiple purposes, and is managed by CDEC.