Reservoir · Oklahoma · United States · USGS NWIS
Stanley Draper Lake
82.8% full
Capacity
123.35 hm³
Volume stored
102 hm³
Vs month average
96% of normal
Coordinates
35.328°N, 97.357°W
Last updated
2026-10-12
Current fill
82.8%vs 7 days ago
-0.2%losing
vs 1 year ago
-12.4%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
96%of normal
82.8% full on 2026-10-12, against an average of 86.0% for October across 5 years of readings (-3.2 points).
Drought Monitor at this site · 6 October 2026
D3extreme drought
The ground at Stanley Draper Lake's coordinates falls inside the D3 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Oklahoma drought figures →
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: 2026-10-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.328, -97.357 · Open in Google Maps
About Stanley Draper Lake
As of October 12, 2026, Stanley Draper Lake is filled to 82.8% of its total capacity, holding roughly 102 hm³ of water out of a maximum 123 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 12.4 points below its level on the same date a year earlier.
Across the readings we hold for Stanley Draper Lake — 1461 data points between October 13, 2022 and October 12, 2026 — the level has ranged from a low of 72.6% (October 23, 2022) to a high of 101.4% (June 19, 2025). On average the reservoir is fullest around June and at its lowest around November.
It is operated by USGS primarily for multiple purposes. It lies within the Oklahoma basin at 35.328°N, 97.357°W.
Key facts
- Current fill level
- 82.8%
- Water stored
- 102 hm³
- Total capacity
- 123 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 12.4 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USGS
- Coordinates
- 35.328°N, 97.357°W
- Last updated
- October 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Oct 2026 | 82.8% | 102 |
| 11 Oct 2026 | 83.0% | 102 |
| 10 Oct 2026 | 83.0% | 102 |
| 9 Oct 2026 | 83.0% | 102 |
| 8 Oct 2026 | 83.1% | 102 |
| 7 Oct 2026 | 83.1% | 102 |
| 6 Oct 2026 | 83.1% | 103 |
| 5 Oct 2026 | 83.0% | 102 |
| 4 Oct 2026 | 83.0% | 102 |
| 3 Oct 2026 | 83.1% | 102 |
| 2 Oct 2026 | 83.1% | 102 |
| 1 Oct 2026 | 83.1% | 103 |