Reservoir · Nevada · United States · USGS NWIS
Marlette Lake
47.9% full
Capacity
12.83 hm³
Volume stored
6 hm³
Coordinates
39.173°N, 119.906°W
Last updated
2026-09-30
Current fill
47.9%vs 7 days ago
-0.2%losing
vs 1 year ago
+11.6%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — 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: 2026-09-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.173, -119.906 · Open in Google Maps
About Marlette Lake
As of September 30, 2026, Marlette Lake is filled to 47.9% of its total capacity, holding roughly 6 hm³ of water out of a maximum 13 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 (-0.2 pts), and it is 11.6 points above its level on the same date a year earlier.
Across the readings we hold for Marlette Lake — 1461 data points between October 1, 2022 and September 30, 2026 — the level has ranged from a low of 36.3% (September 30, 2025) to a high of 105.0% (December 30, 2022). On average the reservoir is fullest around January and at its lowest around May.
It is operated by USGS primarily for multiple purposes. It lies within the Nevada basin at 39.173°N, 119.906°W.
Key facts
- Current fill level
- 47.9%
- Water stored
- 6 hm³
- Total capacity
- 13 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▲ 11.6 pts
- Primary use
- Multipurpose
- River basin
- Nevada
- Operator
- USGS
- Coordinates
- 39.173°N, 119.906°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 47.9% | 6 |
| 29 Sep 2026 | 47.9% | 6 |
| 28 Sep 2026 | 48.0% | 6 |
| 27 Sep 2026 | 48.0% | 6 |
| 26 Sep 2026 | 48.0% | 6 |
| 25 Sep 2026 | 48.0% | 6 |
| 24 Sep 2026 | 48.1% | 6 |
| 23 Sep 2026 | 48.1% | 6 |
| 22 Sep 2026 | 48.1% | 6 |
| 21 Sep 2026 | 48.2% | 6 |
| 20 Sep 2026 | 48.2% | 6 |
| 19 Sep 2026 | 48.2% | 6 |