| # | City | Average annual temperature |
|---|---|---|
| 1 | Sun Valley | 40.3°F |
| 2 | McCall | 41.5°F |
| 3 | Driggs | 42.2°F |
| 4 | Rexburg | 44.0°F |
| 5 | Salmon | 44.5°F |
| 6 | Moscow | 46.3°F |
| 7 | Sandpoint | 46.3°F |
| 8 | Ammon | 46.5°F |
| 9 | Idaho Falls | 46.5°F |
| 10 | Hailey | 46.9°F |
| 11 | Blackfoot | 47.2°F |
| 12 | Coeur d'Alene | 48.8°F |
| 13 | Hayden | 48.8°F |
| 14 | Post Falls | 48.8°F |
| 15 | Rathdrum | 48.8°F |
| 16 | Burley | 49.1°F |
| 17 | Eagle | 49.8°F |
| 18 | Chubbuck | 50.1°F |
| 19 | Jerome | 50.1°F |
| 20 | Pocatello | 50.1°F |
| 21 | Twin Falls | 51.7°F |
| 22 | Nampa | 52.0°F |
| 23 | Star | 52.0°F |
| 24 | Caldwell | 52.4°F |
| 25 | Boise | 53.3°F |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals, nearest station with complete data. Only cities covered by GIS Map with at least 1,000 residents are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Coldest Cities in Idaho”, https://gismap.land/rankings/idaho/coldest-cities. Figures from NOAA NCEI 1991-2020 U.S. Climate Normals, nearest station with complete data.
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