Hungry Horse Reservoir water level
▼ 2 points from 91.9% a year ago
Source: data.usbr.gov/rise/api/catalog-item/130875, accessed October 1, 2026. Updated every 6 hours.
Hungry Horse Reservoir is at 90.2% of full pool (3545.21 ft) as of September 27, 2026. Hungry Horse Reservoir was last full on August 18, 2026 (95% of normal storage). Hungry Horse Reservoir is near Hungry Horse, Montana.
Hungry Horse 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: Bureau of Reclamation daily data.
Storage, % of full pool, since 1951
Hungry Horse Reservoir is falling: 90.6% full, down 0.8 percentage points since September 20, 2026.
On this same date last year (September 28, 2025), Hungry Horse Reservoir was 91.9% full, 1.3 percentage points higher than today's 90.6%.
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).
Hungry Horse Reservoir map
Hungry Horse Reservoir is at 48.3413, -114.0126. Open in OpenStreetMap.
The dam
- Flood control
- Hydropower
- Irrigation
Sources: nid.sec.usace.army.mil, accessed September 29, 2026
On the water
No campgrounds, boat ramps, or swim spots linked to Hungry Horse Reservoir yet.
Common questions
- Hungry Horse Reservoir is at 90.2% of full pool (3545.21 ft) as of September 27, 2026.
- Hungry Horse Reservoir was last full on August 18, 2026, when it held 95% of its normal storage (elevation 3,552.59 ft). 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 Bureau of Reclamation daily data since October 1, 1951.
- In Bureau of Reclamation daily data since October 1, 1951, Hungry Horse Reservoir's highest elevation was 3,561.4 ft on July 3, 1955. Its lowest after it first filled (June 29, 1954) was 3,372.32 ft on March 24, 1993. These are the highest and lowest daily readings in the published data, not official records.
- Hungry Horse Reservoir is near Hungry Horse, Montana (48.3413, -114.0126).
- Bureau of Reclamation operates the dam at Hungry Horse Reservoir.
- Hungry Horse Reservoir's dam is used for Flood control, Hydropower, Irrigation.