NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1918
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Idaho (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- |
|---|---|---|---|---|
| Ada County | 49.5°F | -0.5°F | 48 | 50.0°F |
| Adams County | 40.6°F | -0.2°F | 56 | 40.8°F |
| Bannock County | 41.9°F | -0.3°F | 57 | 42.2°F |
| Bear Lake County | 36.8°F | -0.4°F | 54 | 37.2°F |
| Benewah County | 43.0°F | -0.5°F | 52 | 43.5°F |
| Bingham County | 42.1°F | -0.4°F | 53 | 42.5°F |
| Blaine County | 38.9°F | -0.5°F | 51 | 39.4°F |
| Boise County | 39.8°F | -0.7°F | 47 | 40.5°F |
| Bonner County | 41.8°F | 0.0°F | 59 | 41.8°F |
| Bonneville County | 38.9°F | -0.4°F | 54 | 39.3°F |
| Boundary County | 39.3°F | 0.1°F | 60 | 39.3°F |
| Butte County | 39.1°F | -0.4°F | 53 | 39.5°F |
| Camas County | 37.6°F | -0.5°F | 50 | 38.1°F |
| Canyon County | 50.6°F | -0.6°F | 49 | 51.2°F |
| Caribou County | 38.1°F | -0.7°F | 47 | 38.7°F |
| Cassia County | 42.5°F | -0.5°F | 55 | 43.0°F |
| Clark County | 36.2°F | -1.1°F | 37 | 37.4°F |
| Clearwater County | 41.0°F | -0.5°F | 52 | 41.5°F |
| Custer County | 33.7°F | -1.4°F | 34 | 35.1°F |
| Elmore County | 44.0°F | -0.2°F | 53 | 44.3°F |
| Franklin County | 41.0°F | -0.2°F | 59 | 41.1°F |
| Fremont County | 36.4°F | -0.6°F | 49 | 37.0°F |
| Gem County | 46.8°F | -0.7°F | 47 | 47.4°F |
| Gooding County | 45.7°F | -0.6°F | 46 | 46.4°F |
| Idaho County | 38.6°F | -0.5°F | 49 | 39.1°F |
| Jefferson County | 41.2°F | -0.7°F | 45 | 41.9°F |
| Jerome County | 45.5°F | -0.9°F | 40 | 46.5°F |
| Kootenai County | 43.6°F | 0.1°F | 69 | 43.5°F |
| Latah County | 43.2°F | -1.0°F | 43 | 44.2°F |
| Lemhi County | 35.2°F | -1.4°F | 30 | 36.6°F |
| Lewis County | 41.7°F | -1.6°F | 26 | 43.3°F |
| Lincoln County | 43.4°F | -0.8°F | 45 | 44.2°F |
| Madison County | 39.7°F | -0.5°F | 50 | 40.2°F |
| Minidoka County | 43.6°F | -0.6°F | 51 | 44.2°F |
| Nez Perce County | 45.3°F | -1.5°F | 27 | 46.8°F |
| Oneida County | 43.0°F | 0.1°F | 64 | 42.9°F |
| Owyhee County | 44.1°F | -0.5°F | 52 | 44.6°F |
| Payette County | 49.6°F | -0.6°F | 44 | 50.2°F |
| Power County | 43.1°F | -0.1°F | 62 | 43.2°F |
| Shoshone County | 40.1°F | -0.1°F | 61 | 40.2°F |
| Teton County | 36.7°F | 0.0°F | 64 | 36.7°F |
| Twin Falls County | 44.3°F | -0.7°F | 48 | 45.0°F |
| Valley County | 35.9°F | -0.3°F | 55 | 36.2°F |
| Washington County | 45.4°F | -0.5°F | 49 | 45.9°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on July 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
