County Mapping

County Data Info
Please note, Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
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County Average Temperature
March - May 1899
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Iowa (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
March - May 1899 Iowa County Average Temperature
County
Value
Rank
131 Years
Anomaly
1901-2000 Mean
Adair County43.9ยฐF3-4.4ยฐF48.3ยฐF
Adams County44.6ยฐF2-4.3ยฐF48.9ยฐF
Allamakee County42.6ยฐF16-2.7ยฐF45.3ยฐF
Appanoose County47.1ยฐF8-2.9ยฐF50.0ยฐF
Audubon County43.1ยฐF2-4.4ยฐF47.5ยฐF
Benton County44.3ยฐF10-3.1ยฐF47.4ยฐF
Black Hawk County43.4ยฐF11-3.3ยฐF46.7ยฐF
Boone County43.5ยฐF2-4.4ยฐF47.9ยฐF
Bremer County42.5ยฐF10-3.3ยฐF45.8ยฐF
Buchanan County42.9ยฐF8-3.4ยฐF46.3ยฐF
Buena Vista County40.1ยฐF1-5.8ยฐF46.0ยฐF
Butler County42.6ยฐF8-3.5ยฐF46.1ยฐF
Calhoun County41.9ยฐF1-5.1ยฐF47.0ยฐF
Carroll County42.0ยฐF1-5.2ยฐF47.2ยฐF
Cass County44.8ยฐF5-3.8ยฐF48.6ยฐF
Cedar County45.6ยฐF16-2.6ยฐF48.2ยฐF
Cerro Gordo County40.4ยฐF2-4.6ยฐF45.1ยฐF
Cherokee County40.4ยฐF1-5.7ยฐF46.1ยฐF
Chickasaw County41.4ยฐF10-3.5ยฐF44.9ยฐF
Clarke County45.8ยฐF6-3.5ยฐF49.4ยฐF
Clay County39.4ยฐF1-5.8ยฐF45.3ยฐF
Clayton County43.3ยฐF18-2.7ยฐF46.0ยฐF
Clinton County46.3ยฐF23-1.8ยฐF48.1ยฐF
Crawford County42.2ยฐF1-5.0ยฐF47.3ยฐF
Dallas County44.8ยฐF4-4.1ยฐF48.9ยฐF
Davis County47.3ยฐF10-2.8ยฐF50.2ยฐF
Decatur County46.6ยฐF6-3.1ยฐF49.8ยฐF
Delaware County43.2ยฐF12-2.9ยฐF46.0ยฐF
Des Moines County47.8ยฐF17-2.5ยฐF50.2ยฐF
Dickinson County38.8ยฐF1-5.7ยฐF44.6ยฐF
Dubuque County44.4ยฐF23-2.1ยฐF46.4ยฐF
Emmet County38.7ยฐF1-5.9ยฐF44.6ยฐF
Fayette County42.0ยฐF9-3.3ยฐF45.3ยฐF
Floyd County41.6ยฐF6-3.8ยฐF45.4ยฐF
Franklin County41.5ยฐF3-4.2ยฐF45.7ยฐF
Fremont County47.3ยฐF6-3.5ยฐF50.8ยฐF
Greene County42.9ยฐF1-4.9ยฐF47.8ยฐF
Grundy County43.6ยฐF12-3.2ยฐF46.8ยฐF
Guthrie County43.7ยฐF2-4.4ยฐF48.1ยฐF
Hamilton County42.8ยฐF6-4.0ยฐF46.9ยฐF
Hancock County40.2ยฐF2-5.0ยฐF45.3ยฐF
Hardin County43.1ยฐF8-3.6ยฐF46.7ยฐF
Harrison County44.1ยฐF2-4.8ยฐF48.9ยฐF
Henry County47.7ยฐF19-2.4ยฐF50.1ยฐF
Howard County39.9ยฐF4-3.9ยฐF43.8ยฐF
Humboldt County42.1ยฐF4-4.5ยฐF46.5ยฐF
Ida County41.2ยฐF1-5.5ยฐF46.7ยฐF
Iowa County45.4ยฐF11-2.8ยฐF48.3ยฐF
Jackson County45.4ยฐF22-2.0ยฐF47.4ยฐF
Jasper County45.1ยฐF7-3.5ยฐF48.6ยฐF
Jefferson County47.2ยฐF14-2.6ยฐF49.9ยฐF
Johnson County45.7ยฐF13-2.8ยฐF48.5ยฐF
Jones County44.5ยฐF14-2.7ยฐF47.1ยฐF
Keokuk County46.1ยฐF9-2.8ยฐF49.0ยฐF
Kossuth County39.6ยฐF1-5.7ยฐF45.3ยฐF
Lee County48.6ยฐF14-2.4ยฐF51.1ยฐF
Linn County44.3ยฐF13-2.9ยฐF47.2ยฐF
Louisa County47.2ยฐF17-2.5ยฐF49.7ยฐF
Lucas County46.1ยฐF5-3.5ยฐF49.6ยฐF
Lyon County39.8ยฐF2-5.5ยฐF45.3ยฐF
Madison County45.3ยฐF6-3.8ยฐF49.1ยฐF
Mahaska County46.4ยฐF10-2.8ยฐF49.2ยฐF
Marion County46.3ยฐF7-3.3ยฐF49.7ยฐF
Marshall County44.2ยฐF9-3.4ยฐF47.6ยฐF
Mills County46.5ยฐF5-3.7ยฐF50.2ยฐF
Mitchell County40.3ยฐF4-4.1ยฐF44.5ยฐF
Monona County43.2ยฐF2-4.9ยฐF48.1ยฐF
Monroe County46.7ยฐF7-3.2ยฐF49.9ยฐF
Montgomery County46.5ยฐF9-3.1ยฐF49.6ยฐF
Muscatine County46.7ยฐF20-2.4ยฐF49.2ยฐF
O'Brien County39.5ยฐF1-6.0ยฐF45.5ยฐF
Osceola County38.8ยฐF1-5.9ยฐF44.7ยฐF
Page County46.9ยฐF6-3.2ยฐF50.1ยฐF
Palo Alto County39.7ยฐF1-5.8ยฐF45.4ยฐF
Plymouth County41.3ยฐF1-5.3ยฐF46.6ยฐF
Pocahontas County41.2ยฐF1-5.2ยฐF46.4ยฐF
Polk County45.3ยฐF3-3.9ยฐF49.2ยฐF
Pottawattamie County45.5ยฐF4-3.9ยฐF49.3ยฐF
Poweshiek County45.2ยฐF11-2.9ยฐF48.1ยฐF
Ringgold County45.8ยฐF5-3.5ยฐF49.3ยฐF
Sac County41.0ยฐF1-5.6ยฐF46.6ยฐF
Scott County46.9ยฐF27-1.6ยฐF48.6ยฐF
Shelby County43.8ยฐF3-4.2ยฐF48.0ยฐF
Sioux County40.4ยฐF1-5.6ยฐF46.0ยฐF
Story County43.8ยฐF2-4.0ยฐF47.8ยฐF
Tama County44.4ยฐF13-3.0ยฐF47.4ยฐF
Taylor County45.4ยฐF3-3.9ยฐF49.3ยฐF
Union County44.8ยฐF3-4.0ยฐF48.8ยฐF
Van Buren County47.9ยฐF12-2.6ยฐF50.6ยฐF
Wapello County47.0ยฐF9-2.8ยฐF49.8ยฐF
Warren County46.2ยฐF6-3.6ยฐF49.8ยฐF
Washington County46.5ยฐF14-2.6ยฐF49.1ยฐF
Wayne County46.6ยฐF7-3.1ยฐF49.7ยฐF
Webster County42.8ยฐF5-4.2ยฐF47.0ยฐF
Winnebago County39.4ยฐF2-5.3ยฐF44.6ยฐF
Winneshiek County40.9ยฐF12-3.4ยฐF44.3ยฐF
Woodbury County42.4ยฐF2-5.0ยฐF47.4ยฐF
Worth County39.9ยฐF2-4.6ยฐF44.5ยฐF
Wright County41.7ยฐF4-4.4ยฐF46.1ยฐF

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