Silver Jack Reservoir water level
▲ 3.8 points from 3.9% a year ago
Source: waterdata.usgs.gov/monitoring-location/USGS-09125800, accessed October 1, 2026. Updated every 6 hours.
Silver Jack Reservoir is at 7.1% of full pool as of September 28, 2026. Silver Jack Reservoir was last full on July 10, 2025 (95% of normal storage). Silver Jack Reservoir is near Cimarron, Colorado.
Silver Jack Reservoir level history
This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.
Storage, % of full pool, since 1987
Silver Jack Reservoir is falling: 7.5% full, down 0.2 percentage points since September 20, 2026.
On this same date last year (September 28, 2025), Silver Jack Reservoir was 3.9% full, 3.6 percentage points lower than today's 7.5%.
Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).
Silver Jack Reservoir map
Silver Jack Reservoir is at 38.2328, -107.5417. Open in OpenStreetMap.
The dam
- Irrigation
Sources: nid.sec.usace.army.mil, accessed September 29, 2026
On the water
No campgrounds, boat ramps, or swim spots linked to Silver Jack Reservoir yet.
Common questions
- Silver Jack Reservoir is at 7.1% of full pool as of September 28, 2026.
- Silver Jack Reservoir was last full on July 10, 2025, when it held 95% of its normal storage. This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on USGS daily data since October 30, 1987.
- In USGS daily data since October 30, 1987, Silver Jack Reservoir's highest storage was 99.1% of normal storage on June 16, 1993. Its lowest after it first filled (June 5, 1988) was 3.6% of normal storage on September 29, 2025. These are the highest and lowest daily readings in the published data, not official records.
- Silver Jack Reservoir is near Cimarron, Colorado (38.2328, -107.5417).
- Bureau of Reclamation operates the dam at Silver Jack Reservoir.
- Silver Jack Reservoir's dam is used for Irrigation.