NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1917
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Montana (Hover over a County)
TempAverage Temperature: 34.5°F
Rank: 2nd Coldest
Anomaly: -5.6°F
Mean: 40.1°F
County | Value | Rank 131 Years | Anomaly | 1901- |
|---|---|---|---|---|
| Beaverhead County | 29.3°F | 1 | -5.4°F | 34.7°F |
| Big Horn County | 36.0°F | 1 | -6.6°F | 42.7°F |
| Blaine County | 35.8°F | 9 | -5.1°F | 40.9°F |
| Broadwater County | 34.6°F | 2 | -5.7°F | 40.3°F |
| Carbon County | 33.1°F | 1 | -6.4°F | 39.5°F |
| Carter County | 35.8°F | 3 | -5.9°F | 41.7°F |
| Cascade County | 35.4°F | 7 | -5.1°F | 40.5°F |
| Chouteau County | 36.6°F | 4 | -5.5°F | 42.1°F |
| Custer County | 37.3°F | 2 | -6.0°F | 43.3°F |
| Daniels County | 33.2°F | 11 | -5.2°F | 38.4°F |
| Dawson County | 36.5°F | 8 | -5.4°F | 41.9°F |
| Deer Lodge County | 29.2°F | 2 | -5.7°F | 34.9°F |
| Fallon County | 36.2°F | 5 | -5.5°F | 41.7°F |
| Fergus County | 35.4°F | 3 | -6.3°F | 41.7°F |
| Flathead County | 32.9°F | 2 | -4.8°F | 37.7°F |
| Gallatin County | 30.6°F | 1 | -6.2°F | 36.8°F |
| Garfield County | 36.0°F | 3 | -6.3°F | 42.3°F |
| Glacier County | 31.0°F | 5 | -5.5°F | 36.5°F |
| Golden Valley County | 35.6°F | 1 | -6.3°F | 41.9°F |
| Granite County | 31.0°F | 3 | -5.3°F | 36.3°F |
| Hill County | 34.8°F | 7 | -5.6°F | 40.4°F |
| Jefferson County | 31.8°F | 2 | -6.0°F | 37.7°F |
| Judith Basin County | 33.0°F | 3 | -5.6°F | 38.6°F |
| Lake County | 36.9°F | 2 | -4.7°F | 41.6°F |
| Lewis and Clark County | 32.8°F | 3 | -5.2°F | 38.0°F |
| Liberty County | 34.0°F | 3 | -6.0°F | 40.1°F |
| Lincoln County | 35.9°F | 2 | -3.8°F | 39.7°F |
| McCone County | 36.0°F | 9 | -5.6°F | 41.6°F |
| Madison County | 30.7°F | 1 | -5.8°F | 36.5°F |
| Meagher County | 31.2°F | 3 | -5.3°F | 36.5°F |
| Mineral County | 34.5°F | 2 | -5.3°F | 39.8°F |
| Missoula County | 34.0°F | 2 | -5.2°F | 39.2°F |
| Musselshell County | 37.1°F | 1 | -6.3°F | 43.4°F |
| Park County | 29.2°F | 1 | -6.4°F | 35.6°F |
| Petroleum County | 37.2°F | 3 | -6.7°F | 43.9°F |
| Phillips County | 36.5°F | 9 | -5.5°F | 41.9°F |
| Pondera County | 33.4°F | 6 | -5.7°F | 39.1°F |
| Powder River County | 36.9°F | 2 | -6.3°F | 43.2°F |
| Powell County | 31.2°F | 1 | -5.6°F | 36.8°F |
| Prairie County | 36.7°F | 4 | -5.7°F | 42.4°F |
| Ravalli County | 32.9°F | 2 | -5.1°F | 38.0°F |
| Richland County | 36.2°F | 8 | -5.3°F | 41.5°F |
| Roosevelt County | 35.3°F | 10 | -5.3°F | 40.5°F |
| Rosebud County | 37.1°F | 2 | -6.2°F | 43.2°F |
| Sanders County | 36.4°F | 2 | -4.7°F | 41.1°F |
| Sheridan County | 34.2°F | 10 | -5.0°F | 39.1°F |
| Silver Bow County | 30.2°F | 2 | -5.9°F | 36.2°F |
| Stillwater County | 34.5°F | 1 | -6.2°F | 40.7°F |
| Sweet Grass County | 32.7°F | 1 | -6.5°F | 39.2°F |
| Teton County | 33.2°F | 4 | -5.7°F | 38.9°F |
| Toole County | 34.2°F | 6 | -5.8°F | 40.0°F |
| Treasure County | 38.0°F | 1 | -5.9°F | 43.9°F |
| Valley County | 35.0°F | 11 | -5.4°F | 40.3°F |
| Wheatland County | 33.7°F | 1 | -6.1°F | 39.8°F |
| Wibaux County | 36.1°F | 5 | -5.7°F | 41.8°F |
| Yellowstone County | 38.0°F | 1 | -6.2°F | 44.2°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on July 17, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
