NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
October - December 1939
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 130 Years | 1901- |
|---|---|---|---|---|
| Ada County | 43.2°F | 2.5°F | 115 | 40.7°F |
| Adams County | 37.9°F | 4.1°F | 127 | 33.8°F |
| Bannock County | 38.9°F | 4.8°F | 128 | 34.1°F |
| Bear Lake County | 34.4°F | 4.4°F | 127 | 30.0°F |
| Benewah County | 39.5°F | 3.4°F | 122 | 36.2°F |
| Bingham County | 37.8°F | 4.7°F | 128 | 33.0°F |
| Blaine County | 36.4°F | 4.9°F | 128 | 31.5°F |
| Boise County | 36.6°F | 3.3°F | 124 | 33.3°F |
| Bonner County | 36.3°F | 2.9°F | 117 | 33.5°F |
| Bonneville County | 35.9°F | 4.7°F | 128 | 31.2°F |
| Boundary County | 33.8°F | 2.8°F | 116 | 31.0°F |
| Butte County | 35.1°F | 5.0°F | 128 | 30.1°F |
| Camas County | 35.7°F | 4.5°F | 129 | 31.2°F |
| Canyon County | 42.8°F | 2.2°F | 111 | 40.6°F |
| Caribou County | 36.4°F | 5.0°F | 128 | 31.4°F |
| Cassia County | 39.6°F | 4.0°F | 126 | 35.6°F |
| Clark County | 33.8°F | 4.9°F | 128 | 28.9°F |
| Clearwater County | 37.1°F | 2.8°F | 120 | 34.3°F |
| Custer County | 32.9°F | 4.8°F | 128 | 28.1°F |
| Elmore County | 39.7°F | 3.4°F | 120 | 36.3°F |
| Franklin County | 37.6°F | 4.3°F | 127 | 33.3°F |
| Fremont County | 33.4°F | 4.8°F | 127 | 28.6°F |
| Gem County | 40.8°F | 2.5°F | 118 | 38.2°F |
| Gooding County | 41.1°F | 3.7°F | 124 | 37.3°F |
| Idaho County | 35.4°F | 3.1°F | 121 | 32.4°F |
| Jefferson County | 35.8°F | 4.7°F | 128 | 31.1°F |
| Jerome County | 41.3°F | 3.8°F | 124 | 37.5°F |
| Kootenai County | 38.5°F | 2.8°F | 118 | 35.7°F |
| Latah County | 40.6°F | 3.6°F | 127 | 36.9°F |
| Lemhi County | 33.2°F | 4.3°F | 126 | 28.9°F |
| Lewis County | 39.9°F | 3.4°F | 127 | 36.5°F |
| Lincoln County | 39.6°F | 4.5°F | 128 | 35.1°F |
| Madison County | 36.1°F | 4.6°F | 127 | 31.5°F |
| Minidoka County | 39.1°F | 4.2°F | 126 | 35.0°F |
| Nez Perce County | 42.9°F | 3.8°F | 128 | 39.1°F |
| Oneida County | 39.5°F | 4.6°F | 126 | 34.9°F |
| Owyhee County | 40.1°F | 2.6°F | 117 | 37.5°F |
| Payette County | 41.6°F | 2.1°F | 103 | 39.5°F |
| Power County | 39.1°F | 4.5°F | 128 | 34.6°F |
| Shoshone County | 35.9°F | 2.7°F | 115 | 33.2°F |
| Teton County | 33.8°F | 4.7°F | 128 | 29.1°F |
| Twin Falls County | 41.0°F | 3.6°F | 125 | 37.4°F |
| Valley County | 33.5°F | 4.0°F | 128 | 29.6°F |
| Washington County | 40.1°F | 3.0°F | 123 | 37.1°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
