Reservoir · Arizona · United States · USGS NWIS
Roosevelt Lake
40.8% full
Capacity
2,012.47 hm³
Volume stored
821 hm³
Vs month average
67% of normal
Coordinates
33.672°N, 111.161°W
Last updated
2026-10-30
Current fill
40.8%vs 7 days ago
+1.3 ppgaining
vs 1 year ago
-5.1 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
67%of normal
40.8% full on 2026-10-30, against an average of 61.1% for October across 4 years of readings (-20.3 points).
Drought Monitor at this site · 27 October 2026
Nonenot in a drought category
Roosevelt Lake's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Arizona drought figures →
Data source: USGS National Water Information System (NWIS) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 33.672°N, 111.161°W · Open in Google Maps
About Roosevelt Lake
As of October 30, 2026, Roosevelt Lake is filled to 40.8% of its total capacity, holding 821.14 hm³ of water out of a maximum 2,012 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 1.3 percentage points, and it is 5.1 points below its level on the same date a year earlier.
Across the readings we hold for Roosevelt Lake — 1186 data points between August 2, 2023 and October 30, 2026 — the level has ranged from a low of 35.1% (September 15, 2026) to a high of 96.7% (April 29, 2024). On average the reservoir is fullest around April and at its lowest around July.
It is operated by SRP primarily for multiple purposes. It lies within the Salt River basin at 33.672°N, 111.161°W.
Key facts
- Current fill level
- 40.8% of total capacity
- Water stored
- 821.14 hm³
- Total capacity
- 2,012 hm³
- 7-day change
- ▲ 1.3 pp
- Year-on-year
- ▼ 5.1 pp
- Primary use
- Multipurpose
- River basin
- Salt River
- Operator
- SRP
- Coordinates
- 33.672°N, 111.161°W
- Last updated
- October 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Oct 2026 | 40.8% | 821.14 |
| 29 Oct 2026 | 40.8% | 820.18 |
| 28 Oct 2026 | 40.7% | 818.07 |
| 27 Oct 2026 | 40.5% | 815.62 |
| 26 Oct 2026 | 40.4% | 812.57 |
| 25 Oct 2026 | 40.1% | 807.85 |
| 24 Oct 2026 | 39.8% | 801.85 |
| 23 Oct 2026 | 39.5% | 794.86 |
| 22 Oct 2026 | 39.2% | 789.02 |
| 21 Oct 2026 | 39.1% | 787.65 |
| 20 Oct 2026 | 39.1% | 786.56 |
| 19 Oct 2026 | 39.0% | 785.43 |