County Mapping
County Average Temperature
October - December 1997
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 | 41.0°F | 0.3°F | 69 | 40.7°F |
Adams County | 34.1°F | 0.4°F | 70 | 33.8°F |
Bannock County | 33.4°F | -0.6°F | 43 | 34.1°F |
Bear Lake County | 29.5°F | -0.4°F | 47 | 30.0°F |
Benewah County | 37.2°F | 1.1°F | 85 | 36.2°F |
Bingham County | 32.4°F | -0.6°F | 44 | 33.0°F |
Blaine County | 31.7°F | 0.2°F | 56 | 31.5°F |
Boise County | 33.7°F | 0.4°F | 62 | 33.3°F |
Bonner County | 34.9°F | 1.4°F | 98 | 33.5°F |
Bonneville County | 30.4°F | -0.8°F | 43 | 31.2°F |
Boundary County | 32.4°F | 1.4°F | 93 | 31.0°F |
Butte County | 29.7°F | -0.4°F | 44 | 30.1°F |
Camas County | 31.5°F | 0.3°F | 61 | 31.2°F |
Canyon County | 41.2°F | 0.6°F | 78 | 40.6°F |
Caribou County | 31.0°F | -0.4°F | 46 | 31.4°F |
Cassia County | 35.4°F | -0.3°F | 49 | 35.6°F |
Clark County | 28.6°F | -0.3°F | 50 | 28.9°F |
Clearwater County | 35.1°F | 0.8°F | 81 | 34.3°F |
Custer County | 28.1°F | 0.0°F | 52 | 28.1°F |
Elmore County | 36.5°F | 0.2°F | 59 | 36.3°F |
Franklin County | 32.5°F | -0.7°F | 39 | 33.3°F |
Fremont County | 28.0°F | -0.6°F | 47 | 28.6°F |
Gem County | 39.1°F | 0.9°F | 81 | 38.2°F |
Gooding County | 37.8°F | 0.5°F | 69 | 37.3°F |
Idaho County | 32.6°F | 0.2°F | 60 | 32.4°F |
Jefferson County | 30.3°F | -0.8°F | 41 | 31.1°F |
Jerome County | 37.8°F | 0.3°F | 60 | 37.5°F |
Kootenai County | 36.8°F | 1.0°F | 86 | 35.7°F |
Latah County | 38.3°F | 1.4°F | 96 | 36.9°F |
Lemhi County | 28.7°F | -0.2°F | 50 | 28.9°F |
Lewis County | 37.4°F | 0.9°F | 91 | 36.5°F |
Lincoln County | 35.4°F | 0.3°F | 58 | 35.1°F |
Madison County | 30.7°F | -0.8°F | 40 | 31.5°F |
Minidoka County | 35.0°F | 0.0°F | 52 | 35.0°F |
Nez Perce County | 40.3°F | 1.1°F | 93 | 39.1°F |
Oneida County | 34.4°F | -0.5°F | 48 | 34.9°F |
Owyhee County | 37.7°F | 0.2°F | 61 | 37.5°F |
Payette County | 40.7°F | 1.1°F | 86 | 39.5°F |
Power County | 33.9°F | -0.7°F | 41 | 34.6°F |
Shoshone County | 34.1°F | 0.9°F | 81 | 33.2°F |
Teton County | 28.2°F | -1.0°F | 42 | 29.1°F |
Twin Falls County | 37.4°F | 0.1°F | 56 | 37.4°F |
Valley County | 29.5°F | -0.1°F | 53 | 29.6°F |
Washington County | 37.9°F | 0.8°F | 79 | 37.1°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published July 2025, retrieved on July 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping