NOAA's National Centers for Environmental Information
County Mapping
County Average Temperature
March - May 1977
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F
Iowa (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- |
|---|---|---|---|---|
| Adair County | 55.0°F | 6.7°F | 130 | 48.3°F |
| Adams County | 55.1°F | 6.2°F | 130 | 48.9°F |
| Allamakee County | 52.8°F | 7.5°F | 130 | 45.3°F |
| Appanoose County | 56.1°F | 6.2°F | 130 | 50.0°F |
| Audubon County | 54.3°F | 6.7°F | 130 | 47.5°F |
| Benton County | 53.9°F | 6.5°F | 130 | 47.4°F |
| Black Hawk County | 53.8°F | 7.1°F | 130 | 46.7°F |
| Boone County | 55.3°F | 7.4°F | 130 | 47.9°F |
| Bremer County | 53.3°F | 7.5°F | 130 | 45.8°F |
| Buchanan County | 53.8°F | 7.5°F | 130 | 46.3°F |
| Buena Vista County | 53.3°F | 7.3°F | 130 | 46.0°F |
| Butler County | 53.9°F | 7.8°F | 130 | 46.1°F |
| Calhoun County | 54.1°F | 7.1°F | 130 | 47.0°F |
| Carroll County | 54.1°F | 6.9°F | 130 | 47.2°F |
| Cass County | 55.3°F | 6.6°F | 130 | 48.6°F |
| Cedar County | 55.1°F | 6.9°F | 130 | 48.2°F |
| Cerro Gordo County | 53.0°F | 7.9°F | 130 | 45.1°F |
| Cherokee County | 53.5°F | 7.4°F | 130 | 46.1°F |
| Chickasaw County | 52.7°F | 7.8°F | 130 | 44.9°F |
| Clarke County | 56.0°F | 6.6°F | 130 | 49.4°F |
| Clay County | 52.9°F | 7.7°F | 130 | 45.3°F |
| Clayton County | 53.4°F | 7.5°F | 130 | 46.0°F |
| Clinton County | 55.1°F | 7.0°F | 130 | 48.1°F |
| Crawford County | 54.1°F | 6.9°F | 130 | 47.3°F |
| Dallas County | 56.2°F | 7.3°F | 130 | 48.9°F |
| Davis County | 56.2°F | 6.1°F | 130 | 50.2°F |
| Decatur County | 56.1°F | 6.4°F | 130 | 49.8°F |
| Delaware County | 53.6°F | 7.6°F | 130 | 46.0°F |
| Des Moines County | 56.6°F | 6.4°F | 130 | 50.2°F |
| Dickinson County | 52.1°F | 7.6°F | 130 | 44.6°F |
| Dubuque County | 53.7°F | 7.2°F | 130 | 46.4°F |
| Emmet County | 52.6°F | 7.9°F | 130 | 44.6°F |
| Fayette County | 53.0°F | 7.7°F | 130 | 45.3°F |
| Floyd County | 53.2°F | 7.8°F | 130 | 45.4°F |
| Franklin County | 53.8°F | 8.1°F | 130 | 45.7°F |
| Fremont County | 57.1°F | 6.3°F | 130 | 50.8°F |
| Greene County | 55.0°F | 7.2°F | 130 | 47.8°F |
| Grundy County | 54.2°F | 7.4°F | 130 | 46.8°F |
| Guthrie County | 55.4°F | 7.3°F | 130 | 48.1°F |
| Hamilton County | 54.6°F | 7.8°F | 130 | 46.9°F |
| Hancock County | 53.3°F | 8.0°F | 130 | 45.3°F |
| Hardin County | 54.5°F | 7.8°F | 130 | 46.7°F |
| Harrison County | 55.7°F | 6.9°F | 130 | 48.9°F |
| Henry County | 56.4°F | 6.2°F | 130 | 50.1°F |
| Howard County | 52.0°F | 8.2°F | 130 | 43.8°F |
| Humboldt County | 54.0°F | 7.5°F | 130 | 46.5°F |
| Ida County | 53.9°F | 7.1°F | 130 | 46.7°F |
| Iowa County | 55.0°F | 6.7°F | 130 | 48.3°F |
| Jackson County | 54.5°F | 7.1°F | 130 | 47.4°F |
| Jasper County | 55.5°F | 6.9°F | 130 | 48.6°F |
| Jefferson County | 56.3°F | 6.4°F | 130 | 49.9°F |
| Johnson County | 55.2°F | 6.7°F | 130 | 48.5°F |
| Jones County | 54.2°F | 7.1°F | 130 | 47.1°F |
| Keokuk County | 55.7°F | 6.7°F | 130 | 49.0°F |
| Kossuth County | 53.3°F | 8.0°F | 130 | 45.3°F |
| Lee County | 57.2°F | 6.1°F | 130 | 51.1°F |
| Linn County | 54.2°F | 7.0°F | 130 | 47.2°F |
| Louisa County | 56.2°F | 6.5°F | 130 | 49.7°F |
| Lucas County | 55.6°F | 6.0°F | 130 | 49.6°F |
| Lyon County | 52.2°F | 6.9°F | 130 | 45.3°F |
| Madison County | 55.8°F | 6.7°F | 130 | 49.1°F |
| Mahaska County | 55.7°F | 6.5°F | 130 | 49.2°F |
| Marion County | 56.0°F | 6.3°F | 130 | 49.7°F |
| Marshall County | 54.9°F | 7.3°F | 130 | 47.6°F |
| Mills County | 56.6°F | 6.4°F | 130 | 50.2°F |
| Mitchell County | 52.6°F | 8.1°F | 130 | 44.5°F |
| Monona County | 55.2°F | 7.0°F | 130 | 48.1°F |
| Monroe County | 56.1°F | 6.2°F | 130 | 49.9°F |
| Montgomery County | 55.7°F | 6.2°F | 130 | 49.6°F |
| Muscatine County | 55.7°F | 6.6°F | 130 | 49.2°F |
| O'Brien County | 52.6°F | 7.1°F | 130 | 45.5°F |
| Osceola County | 51.9°F | 7.2°F | 130 | 44.7°F |
| Page County | 56.2°F | 6.1°F | 130 | 50.1°F |
| Palo Alto County | 53.3°F | 7.8°F | 130 | 45.4°F |
| Plymouth County | 53.3°F | 6.7°F | 130 | 46.6°F |
| Pocahontas County | 53.8°F | 7.4°F | 130 | 46.4°F |
| Polk County | 56.5°F | 7.3°F | 130 | 49.2°F |
| Pottawattamie County | 56.1°F | 6.7°F | 130 | 49.3°F |
| Poweshiek County | 54.7°F | 6.6°F | 130 | 48.1°F |
| Ringgold County | 55.4°F | 6.0°F | 130 | 49.3°F |
| Sac County | 53.5°F | 6.9°F | 130 | 46.6°F |
| Scott County | 55.6°F | 7.0°F | 130 | 48.6°F |
| Shelby County | 54.8°F | 6.8°F | 130 | 48.0°F |
| Sioux County | 52.8°F | 6.8°F | 130 | 46.0°F |
| Story County | 55.4°F | 7.5°F | 130 | 47.8°F |
| Tama County | 54.2°F | 6.8°F | 130 | 47.4°F |
| Taylor County | 55.5°F | 6.2°F | 130 | 49.3°F |
| Union County | 55.1°F | 6.2°F | 130 | 48.8°F |
| Van Buren County | 56.5°F | 5.9°F | 130 | 50.6°F |
| Wapello County | 56.3°F | 6.5°F | 130 | 49.8°F |
| Warren County | 56.3°F | 6.5°F | 130 | 49.8°F |
| Washington County | 55.8°F | 6.7°F | 130 | 49.1°F |
| Wayne County | 55.8°F | 6.1°F | 130 | 49.7°F |
| Webster County | 54.5°F | 7.5°F | 130 | 47.0°F |
| Winnebago County | 52.7°F | 8.0°F | 130 | 44.6°F |
| Winneshiek County | 52.3°F | 8.0°F | 130 | 44.3°F |
| Woodbury County | 54.3°F | 6.9°F | 130 | 47.4°F |
| Worth County | 52.6°F | 8.1°F | 130 | 44.5°F |
| Wright County | 53.9°F | 7.9°F | 130 | 46.1°F |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Mapping, published August 2025, retrieved on August 13, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
