NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1900
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Montana (Hover over a County)
Temp
Average Temperature
:
--
Anomaly:
--
Rank:
-- Coldest
Mean:
--
*Signifies a tie
**Insufficient variability in the data record renders rank insignificant
County
|
Value | Anomaly | Rank 131 Years | 1901- |
|---|---|---|---|---|
| Beaverhead County | 38.7°F | 4.0°F | 124 | 34.7°F |
| Big Horn County | 46.5°F | 3.8°F | 125 | 42.7°F |
| Blaine County | 44.8°F | 3.9°F | 116 | 40.9°F |
| Broadwater County | 43.6°F | 3.3°F | 119 | 40.3°F |
| Carbon County | 42.6°F | 3.1°F | 114 | 39.5°F |
| Carter County | 46.6°F | 4.9°F | 128 | 41.7°F |
| Cascade County | 44.7°F | 4.2°F | 126 | 40.5°F |
| Chouteau County | 46.1°F | 4.0°F | 123 | 42.1°F |
| Custer County | 47.2°F | 3.9°F | 117 | 43.3°F |
| Daniels County | 42.1°F | 3.7°F | 110 | 38.4°F |
| Dawson County | 45.8°F | 3.9°F | 116 | 41.9°F |
| Deer Lodge County | 38.6°F | 3.7°F | 123 | 34.9°F |
| Fallon County | 45.5°F | 3.8°F | 118 | 41.7°F |
| Fergus County | 45.8°F | 4.1°F | 127 | 41.7°F |
| Flathead County | 41.5°F | 3.8°F | 124 | 37.7°F |
| Gallatin County | 40.1°F | 3.3°F | 117 | 36.8°F |
| Garfield County | 45.8°F | 3.5°F | 112 | 42.3°F |
| Glacier County | 41.0°F | 4.5°F | 125 | 36.5°F |
| Golden Valley County | 45.0°F | 3.1°F | 117 | 41.9°F |
| Granite County | 40.0°F | 3.7°F | 125 | 36.3°F |
| Hill County | 43.9°F | 3.5°F | 112 | 40.4°F |
| Jefferson County | 41.4°F | 3.7°F | 120 | 37.7°F |
| Judith Basin County | 42.6°F | 3.9°F | 126 | 38.6°F |
| Lake County | 45.6°F | 4.1°F | 126 | 41.6°F |
| Lewis and Clark County | 42.6°F | 4.6°F | 127 | 38.0°F |
| Liberty County | 43.8°F | 3.7°F | 114 | 40.1°F |
| Lincoln County | 43.3°F | 3.6°F | 124 | 39.7°F |
| McCone County | 45.3°F | 3.6°F | 112 | 41.6°F |
| Madison County | 40.1°F | 3.6°F | 120 | 36.5°F |
| Meagher County | 39.9°F | 3.4°F | 119 | 36.5°F |
| Mineral County | 43.5°F | 3.7°F | 126 | 39.8°F |
| Missoula County | 43.7°F | 4.5°F | 128 | 39.2°F |
| Musselshell County | 46.7°F | 3.3°F | 118 | 43.4°F |
| Park County | 38.6°F | 3.0°F | 114 | 35.6°F |
| Petroleum County | 47.8°F | 3.9°F | 124 | 43.9°F |
| Phillips County | 45.7°F | 3.7°F | 116 | 41.9°F |
| Pondera County | 43.8°F | 4.7°F | 126 | 39.1°F |
| Powder River County | 47.8°F | 4.6°F | 126 | 43.2°F |
| Powell County | 41.4°F | 4.6°F | 126 | 36.8°F |
| Prairie County | 46.3°F | 3.9°F | 118 | 42.4°F |
| Ravalli County | 40.3°F | 2.2°F | 106 | 38.0°F |
| Richland County | 45.3°F | 3.8°F | 114 | 41.5°F |
| Roosevelt County | 44.3°F | 3.7°F | 111 | 40.5°F |
| Rosebud County | 47.2°F | 3.9°F | 123 | 43.2°F |
| Sanders County | 44.8°F | 3.7°F | 126 | 41.1°F |
| Sheridan County | 42.9°F | 3.8°F | 112 | 39.1°F |
| Silver Bow County | 40.0°F | 3.8°F | 123 | 36.2°F |
| Stillwater County | 43.3°F | 2.6°F | 108 | 40.7°F |
| Sweet Grass County | 41.9°F | 2.7°F | 109 | 39.2°F |
| Teton County | 43.7°F | 4.9°F | 127 | 38.9°F |
| Toole County | 44.0°F | 4.0°F | 121 | 40.0°F |
| Treasure County | 47.8°F | 3.9°F | 122 | 43.9°F |
| Valley County | 43.6°F | 3.3°F | 109 | 40.3°F |
| Wheatland County | 43.1°F | 3.3°F | 120 | 39.8°F |
| Wibaux County | 44.9°F | 3.1°F | 112 | 41.8°F |
| Yellowstone County | 46.9°F | 2.7°F | 111 | 44.2°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on August 2, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
