NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1939
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Idaho (Hover over a County)
Temp
Average Temperature
:
43.4°F
Anomaly:
2.5°F
Rank:
18th Warmest
Mean:
40.9°F
*Signifies a tie
**Insufficient variability in the data record renders rank insignificant
County
|
Value | Anomaly | Rank 131 Years | 1901- |
|---|---|---|---|---|
| Ada County | 52.0°F | 2.0°F | 111 | 50.0°F |
| Adams County | 43.0°F | 2.2°F | 108 | 40.8°F |
| Bannock County | 45.4°F | 3.2°F | 118 | 42.2°F |
| Bear Lake County | 40.2°F | 3.0°F | 107 | 37.2°F |
| Benewah County | 45.2°F | 1.7°F | 108 | 43.5°F |
| Bingham County | 45.7°F | 3.2°F | 120 | 42.5°F |
| Blaine County | 42.2°F | 2.7°F | 112 | 39.4°F |
| Boise County | 42.4°F | 1.9°F | 107 | 40.5°F |
| Bonner County | 43.7°F | 1.9°F | 108 | 41.8°F |
| Bonneville County | 42.6°F | 3.3°F | 123 | 39.3°F |
| Boundary County | 40.9°F | 1.6°F | 97 | 39.3°F |
| Butte County | 42.3°F | 2.7°F | 111 | 39.5°F |
| Camas County | 40.1°F | 2.0°F | 102 | 38.1°F |
| Canyon County | 53.6°F | 2.4°F | 115 | 51.2°F |
| Caribou County | 42.2°F | 3.5°F | 121 | 38.7°F |
| Cassia County | 45.7°F | 2.7°F | 116 | 43.0°F |
| Clark County | 40.3°F | 3.0°F | 111 | 37.4°F |
| Clearwater County | 44.0°F | 2.5°F | 115 | 41.5°F |
| Custer County | 37.6°F | 2.5°F | 109 | 35.1°F |
| Elmore County | 46.4°F | 2.1°F | 108 | 44.3°F |
| Franklin County | 43.9°F | 2.7°F | 109 | 41.1°F |
| Fremont County | 40.0°F | 3.1°F | 116 | 37.0°F |
| Gem County | 49.6°F | 2.2°F | 113 | 47.4°F |
| Gooding County | 48.7°F | 2.4°F | 107 | 46.4°F |
| Idaho County | 41.8°F | 2.7°F | 114 | 39.1°F |
| Jefferson County | 44.8°F | 2.9°F | 109 | 41.9°F |
| Jerome County | 49.0°F | 2.5°F | 111 | 46.5°F |
| Kootenai County | 45.4°F | 1.9°F | 109 | 43.5°F |
| Latah County | 45.9°F | 1.7°F | 106 | 44.2°F |
| Lemhi County | 39.1°F | 2.5°F | 113 | 36.6°F |
| Lewis County | 45.8°F | 2.5°F | 116 | 43.3°F |
| Lincoln County | 46.7°F | 2.5°F | 109 | 44.2°F |
| Madison County | 43.2°F | 3.0°F | 115 | 40.2°F |
| Minidoka County | 46.9°F | 2.7°F | 113 | 44.2°F |
| Nez Perce County | 49.1°F | 2.3°F | 111 | 46.8°F |
| Oneida County | 45.9°F | 3.0°F | 117 | 42.9°F |
| Owyhee County | 46.7°F | 2.1°F | 108 | 44.6°F |
| Payette County | 52.8°F | 2.6°F | 116 | 50.2°F |
| Power County | 46.2°F | 3.1°F | 121 | 43.2°F |
| Shoshone County | 42.3°F | 2.2°F | 109 | 40.2°F |
| Teton County | 39.9°F | 3.2°F | 115 | 36.7°F |
| Twin Falls County | 47.7°F | 2.7°F | 118 | 45.0°F |
| Valley County | 38.1°F | 2.0°F | 103 | 36.2°F |
| Washington County | 48.2°F | 2.3°F | 113 | 45.9°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on July 25, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
