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
February - April 1927
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature: 43.9ยฐF
Rank: 18th Warmest
Anomaly: 3.7ยฐF
Mean: 40.2ยฐF
February - April 1927 Illinois County Average Temperature
County
Value
Rank
131 Years
Anomaly
1901-2000 Mean
Adams County44.5ยฐF1143.7ยฐF40.8ยฐF
Alexander County50.8ยฐF1234.0ยฐF46.8ยฐF
Bond County46.7ยฐF1173.7ยฐF43.0ยฐF
Boone County38.4ยฐF1113.7ยฐF34.8ยฐF
Brown County44.1ยฐF1133.5ยฐF40.7ยฐF
Bureau County40.5ยฐF1083.6ยฐF36.8ยฐF
Calhoun County46.3ยฐF1143.5ยฐF42.8ยฐF
Carroll County38.9ยฐF1093.7ยฐF35.1ยฐF
Cass County44.3ยฐF1123.4ยฐF40.8ยฐF
Champaign County43.1ยฐF1153.8ยฐF39.3ยฐF
Christian County44.7ยฐF1133.5ยฐF41.2ยฐF
Clark County45.2ยฐF1153.7ยฐF41.5ยฐF
Clay County47.0ยฐF1203.9ยฐF43.1ยฐF
Clinton County47.6ยฐF1183.9ยฐF43.7ยฐF
Coles County44.8ยฐF1183.9ยฐF40.9ยฐF
Cook County40.0ยฐF1103.5ยฐF36.5ยฐF
Crawford County46.1ยฐF1153.5ยฐF42.6ยฐF
Cumberland County45.5ยฐF1183.8ยฐF41.7ยฐF
DeKalb County39.2ยฐF1133.7ยฐF35.5ยฐF
De Witt County42.7ยฐF1103.5ยฐF39.2ยฐF
Douglas County44.1ยฐF1144.0ยฐF40.2ยฐF
DuPage County39.7ยฐF1103.5ยฐF36.2ยฐF
Edgar County44.3ยฐF1163.8ยฐF40.5ยฐF
Edwards County48.3ยฐF1214.0ยฐF44.3ยฐF
Effingham County45.9ยฐF1183.8ยฐF42.1ยฐF
Fayette County46.2ยฐF1183.7ยฐF42.5ยฐF
Ford County42.1ยฐF1133.8ยฐF38.3ยฐF
Franklin County48.8ยฐF1214.0ยฐF44.8ยฐF
Fulton County43.5ยฐF1153.8ยฐF39.7ยฐF
Gallatin County49.9ยฐF1224.1ยฐF45.8ยฐF
Greene County46.0ยฐF1153.6ยฐF42.5ยฐF
Grundy County40.6ยฐF1043.4ยฐF37.2ยฐF
Hamilton County49.0ยฐF1214.2ยฐF44.8ยฐF
Hancock County43.7ยฐF1123.8ยฐF39.9ยฐF
Hardin County50.2ยฐF1224.1ยฐF46.1ยฐF
Henderson County42.5ยฐF1133.8ยฐF38.7ยฐF
Henry County40.7ยฐF1113.7ยฐF37.0ยฐF
Iroquois County42.1ยฐF1154.0ยฐF38.1ยฐF
Jackson County48.8ยฐF1203.6ยฐF45.2ยฐF
Jasper County46.3ยฐF1193.8ยฐF42.5ยฐF
Jefferson County48.5ยฐF1224.3ยฐF44.2ยฐF
Jersey County46.6ยฐF1153.5ยฐF43.1ยฐF
Jo Daviess County38.5ยฐF1104.0ยฐF34.5ยฐF
Johnson County50.0ยฐF1234.1ยฐF45.9ยฐF
Kane County39.2ยฐF1113.6ยฐF35.6ยฐF
Kankakee County41.0ยฐF1063.4ยฐF37.5ยฐF
Kendall County40.3ยฐF1083.5ยฐF36.8ยฐF
Knox County41.6ยฐF1123.7ยฐF37.9ยฐF
Lake County38.8ยฐF1113.8ยฐF35.0ยฐF
LaSalle County40.7ยฐF1113.6ยฐF37.0ยฐF
Lawrence County47.3ยฐF1203.8ยฐF43.5ยฐF
Lee County39.5ยฐF1093.7ยฐF35.8ยฐF
Livingston County41.3ยฐF1083.5ยฐF37.7ยฐF
Logan County43.7ยฐF1123.7ยฐF40.0ยฐF
McDonough County43.1ยฐF1133.7ยฐF39.4ยฐF
McHenry County38.1ยฐF1103.5ยฐF34.6ยฐF
McLean County41.6ยฐF1073.4ยฐF38.3ยฐF
Macon County43.8ยฐF1153.6ยฐF40.2ยฐF
Macoupin County45.5ยฐF1123.4ยฐF42.1ยฐF
Madison County47.2ยฐF1163.5ยฐF43.7ยฐF
Marion County47.4ยฐF1204.1ยฐF43.3ยฐF
Marshall County41.4ยฐF1083.5ยฐF37.9ยฐF
Mason County44.3ยฐF1153.8ยฐF40.5ยฐF
Massac County50.9ยฐF1234.2ยฐF46.7ยฐF
Menard County44.2ยฐF1143.6ยฐF40.6ยฐF
Mercer County41.6ยฐF1133.9ยฐF37.7ยฐF
Monroe County48.4ยฐF1173.4ยฐF44.9ยฐF
Montgomery County45.5ยฐF1123.5ยฐF42.0ยฐF
Morgan County44.3ยฐF1103.3ยฐF41.1ยฐF
Moultrie County44.5ยฐF1193.9ยฐF40.6ยฐF
Ogle County39.0ยฐF1113.8ยฐF35.2ยฐF
Peoria County42.3ยฐF1123.7ยฐF38.6ยฐF
Perry County48.2ยฐF1183.6ยฐF44.5ยฐF
Piatt County43.2ยฐF1133.7ยฐF39.5ยฐF
Pike County45.1ยฐF1113.4ยฐF41.6ยฐF
Pope County50.3ยฐF1234.2ยฐF46.1ยฐF
Pulaski County50.8ยฐF1224.1ยฐF46.7ยฐF
Putnam County41.4ยฐF1083.6ยฐF37.8ยฐF
Randolph County48.3ยฐF1163.5ยฐF44.8ยฐF
Richland County47.4ยฐF1214.0ยฐF43.4ยฐF
Rock Island County41.0ยฐF1133.9ยฐF37.2ยฐF
St. Clair County47.9ยฐF1173.4ยฐF44.4ยฐF
Saline County49.5ยฐF1224.0ยฐF45.5ยฐF
Sangamon County44.3ยฐF1123.5ยฐF40.9ยฐF
Schuyler County44.0ยฐF1143.6ยฐF40.3ยฐF
Scott County45.0ยฐF1113.4ยฐF41.6ยฐF
Shelby County45.1ยฐF1173.7ยฐF41.4ยฐF
Stark County40.9ยฐF1083.5ยฐF37.4ยฐF
Stephenson County38.1ยฐF1103.8ยฐF34.3ยฐF
Tazewell County42.8ยฐF1113.7ยฐF39.1ยฐF
Union County49.7ยฐF1223.8ยฐF45.8ยฐF
Vermilion County43.5ยฐF1184.0ยฐF39.5ยฐF
Wabash County48.1ยฐF1193.9ยฐF44.2ยฐF
Warren County41.9ยฐF1133.7ยฐF38.2ยฐF
Washington County47.9ยฐF1183.8ยฐF44.1ยฐF
Wayne County48.2ยฐF1204.2ยฐF44.0ยฐF
White County49.3ยฐF1234.2ยฐF45.1ยฐF
Whiteside County40.0ยฐF1093.8ยฐF36.2ยฐF
Will County40.5ยฐF1073.4ยฐF37.2ยฐF
Williamson County49.1ยฐF1223.9ยฐF45.3ยฐF
Winnebago County38.7ยฐF1123.8ยฐF34.9ยฐF
Woodford County41.3ยฐF1043.4ยฐF38.0ยฐF

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