Reservoir · Oklahoma · United States · USGS NWIS
Spavinaw Lake
68.0% full
Capacity
46.87 hm³
Volume stored
32 hm³
Coordinates
36.383°N, 95.048°W
Last updated
2026-09-30
Current fill
68.0%vs 7 days ago
+0.3%gaining
vs 1 year ago
-2.3%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. 36.383, -95.048 · Open in Google Maps
About Spavinaw Lake
As of September 30, 2026, Spavinaw Lake is filled to 68.0% of its total capacity, holding roughly 32 hm³ of water out of a maximum 47 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 (+0.3 pts), and it is 2.3 points below its level on the same date a year earlier.
Across the readings we hold for Spavinaw Lake — 1460 data points between October 1, 2022 and September 30, 2026 — the level has ranged from a low of 66.9% (November 15, 2022) to a high of 83.6% (March 24, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by USGS primarily for multiple purposes. It lies within the Oklahoma basin at 36.383°N, 95.048°W.
Key facts
- Current fill level
- 68.0%
- Water stored
- 32 hm³
- Total capacity
- 47 hm³
- 7-day change
- ▲ 0.3 pts
- Year-on-year
- ▼ 2.3 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USGS
- Coordinates
- 36.383°N, 95.048°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 68.0% | 32 |
| 29 Sep 2026 | 68.1% | 32 |
| 28 Sep 2026 | 68.1% | 32 |
| 27 Sep 2026 | 68.1% | 32 |
| 26 Sep 2026 | 67.5% | 32 |
| 25 Sep 2026 | 67.5% | 32 |
| 24 Sep 2026 | 67.5% | 32 |
| 23 Sep 2026 | 67.7% | 32 |
| 22 Sep 2026 | 67.7% | 32 |
| 21 Sep 2026 | 67.8% | 32 |
| 20 Sep 2026 | 67.8% | 32 |
| 19 Sep 2026 | 67.8% | 32 |