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 1983
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
February - April 1983 Illinois County Average Temperature
County
Value
Rank
131 Years
Anomaly
1901-2000 Mean
Adams County40.4ยฐF53-0.4ยฐF40.8ยฐF
Alexander County45.3ยฐF42-1.4ยฐF46.8ยฐF
Bond County42.7ยฐF55-0.4ยฐF43.0ยฐF
Boone County36.6ยฐF921.8ยฐF34.8ยฐF
Brown County40.7ยฐF650.0ยฐF40.7ยฐF
Bureau County38.3ยฐF871.4ยฐF36.8ยฐF
Calhoun County42.9ยฐF620.1ยฐF42.8ยฐF
Carroll County36.7ยฐF871.5ยฐF35.1ยฐF
Cass County41.4ยฐF740.5ยฐF40.8ยฐF
Champaign County40.1ยฐF760.9ยฐF39.3ยฐF
Christian County41.8ยฐF760.6ยฐF41.2ยฐF
Clark County41.8ยฐF630.3ยฐF41.5ยฐF
Clay County42.5ยฐF52-0.6ยฐF43.1ยฐF
Clinton County42.8ยฐF48-0.9ยฐF43.7ยฐF
Coles County41.4ยฐF740.5ยฐF40.9ยฐF
Cook County38.1ยฐF911.6ยฐF36.5ยฐF
Crawford County42.3ยฐF55-0.3ยฐF42.6ยฐF
Cumberland County42.0ยฐF680.4ยฐF41.7ยฐF
DeKalb County37.3ยฐF931.8ยฐF35.5ยฐF
De Witt County40.1ยฐF800.9ยฐF39.2ยฐF
Douglas County40.7ยฐF740.5ยฐF40.2ยฐF
DuPage County37.7ยฐF871.5ยฐF36.2ยฐF
Edgar County41.1ยฐF740.6ยฐF40.5ยฐF
Edwards County43.4ยฐF47-0.8ยฐF44.3ยฐF
Effingham County42.1ยฐF570.0ยฐF42.1ยฐF
Fayette County42.5ยฐF600.0ยฐF42.5ยฐF
Ford County39.5ยฐF831.2ยฐF38.3ยฐF
Franklin County43.6ยฐF43-1.2ยฐF44.8ยฐF
Fulton County40.2ยฐF760.5ยฐF39.7ยฐF
Gallatin County44.5ยฐF43-1.3ยฐF45.8ยฐF
Greene County42.7ยฐF670.2ยฐF42.5ยฐF
Grundy County39.1ยฐF921.9ยฐF37.2ยฐF
Hamilton County43.7ยฐF44-1.1ยฐF44.8ยฐF
Hancock County40.2ยฐF720.3ยฐF39.9ยฐF
Hardin County44.5ยฐF36-1.6ยฐF46.1ยฐF
Henderson County39.5ยฐF820.7ยฐF38.7ยฐF
Henry County38.2ยฐF851.2ยฐF37.0ยฐF
Iroquois County39.3ยฐF801.1ยฐF38.1ยฐF
Jackson County44.2ยฐF47-1.0ยฐF45.2ยฐF
Jasper County42.4ยฐF57-0.1ยฐF42.5ยฐF
Jefferson County43.0ยฐF40-1.2ยฐF44.2ยฐF
Jersey County43.2ยฐF610.1ยฐF43.1ยฐF
Jo Daviess County36.0ยฐF901.4ยฐF34.5ยฐF
Johnson County44.5ยฐF43-1.4ยฐF45.9ยฐF
Kane County37.4ยฐF921.8ยฐF35.6ยฐF
Kankakee County39.4ยฐF921.9ยฐF37.5ยฐF
Kendall County38.5ยฐF921.7ยฐF36.8ยฐF
Knox County39.0ยฐF851.1ยฐF37.9ยฐF
Lake County37.0ยฐF952.0ยฐF35.0ยฐF
LaSalle County38.6ยฐF881.6ยฐF37.0ยฐF
Lawrence County43.0ยฐF53-0.5ยฐF43.5ยฐF
Lee County37.6ยฐF891.7ยฐF35.8ยฐF
Livingston County39.3ยฐF901.6ยฐF37.7ยฐF
Logan County40.6ยฐF760.5ยฐF40.0ยฐF
McDonough County39.9ยฐF760.5ยฐF39.4ยฐF
McHenry County36.5ยฐF912.0ยฐF34.6ยฐF
McLean County39.4ยฐF841.2ยฐF38.3ยฐF
Macon County41.0ยฐF800.8ยฐF40.2ยฐF
Macoupin County42.4ยฐF630.2ยฐF42.1ยฐF
Madison County43.2ยฐF53-0.4ยฐF43.7ยฐF
Marion County42.5ยฐF50-0.9ยฐF43.3ยฐF
Marshall County39.4ยฐF891.5ยฐF37.9ยฐF
Mason County40.8ยฐF730.4ยฐF40.5ยฐF
Massac County45.0ยฐF37-1.7ยฐF46.7ยฐF
Menard County41.0ยฐF730.4ยฐF40.6ยฐF
Mercer County38.4ยฐF780.7ยฐF37.7ยฐF
Monroe County44.3ยฐF50-0.7ยฐF44.9ยฐF
Montgomery County42.2ยฐF620.2ยฐF42.0ยฐF
Morgan County42.0ยฐF810.9ยฐF41.1ยฐF
Moultrie County41.2ยฐF730.6ยฐF40.6ยฐF
Ogle County37.0ยฐF901.8ยฐF35.2ยฐF
Peoria County39.6ยฐF821.1ยฐF38.6ยฐF
Perry County43.5ยฐF46-1.0ยฐF44.5ยฐF
Piatt County40.4ยฐF790.9ยฐF39.5ยฐF
Pike County41.5ยฐF60-0.1ยฐF41.6ยฐF
Pope County44.4ยฐF37-1.7ยฐF46.1ยฐF
Pulaski County45.2ยฐF41-1.5ยฐF46.7ยฐF
Putnam County39.2ยฐF871.5ยฐF37.8ยฐF
Randolph County44.0ยฐF49-0.8ยฐF44.8ยฐF
Richland County42.9ยฐF54-0.5ยฐF43.4ยฐF
Rock Island County38.2ยฐF831.1ยฐF37.2ยฐF
St. Clair County43.7ยฐF50-0.8ยฐF44.4ยฐF
Saline County44.2ยฐF44-1.3ยฐF45.5ยฐF
Sangamon County41.4ยฐF730.5ยฐF40.9ยฐF
Schuyler County40.4ยฐF680.1ยฐF40.3ยฐF
Scott County42.2ยฐF720.6ยฐF41.6ยฐF
Shelby County41.9ยฐF720.5ยฐF41.4ยฐF
Stark County38.7ยฐF851.2ยฐF37.4ยฐF
Stephenson County36.1ยฐF911.7ยฐF34.3ยฐF
Tazewell County40.0ยฐF820.8ยฐF39.1ยฐF
Union County44.9ยฐF49-0.9ยฐF45.8ยฐF
Vermilion County40.0ยฐF710.5ยฐF39.5ยฐF
Wabash County43.7ยฐF51-0.5ยฐF44.2ยฐF
Warren County39.0ยฐF830.8ยฐF38.2ยฐF
Washington County43.3ยฐF50-0.8ยฐF44.1ยฐF
Wayne County43.0ยฐF45-1.0ยฐF44.0ยฐF
White County44.1ยฐF48-1.0ยฐF45.1ยฐF
Whiteside County37.6ยฐF861.4ยฐF36.2ยฐF
Will County39.0ยฐF931.8ยฐF37.2ยฐF
Williamson County44.1ยฐF43-1.2ยฐF45.3ยฐF
Winnebago County36.6ยฐF911.7ยฐF34.9ยฐF
Woodford County39.5ยฐF901.5ยฐF38.0ยฐF

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