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
October - December 1970
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
October - December 1970 Illinois County Average Temperature
County
Value
Rank
130 Years
Anomaly
1901-2000 Mean
Adams County42.8ยฐF740.6ยฐF42.2ยฐF
Alexander County47.3ยฐF650.3ยฐF47.1ยฐF
Bond County44.9ยฐF810.7ยฐF44.1ยฐF
Boone County37.8ยฐF730.6ยฐF37.2ยฐF
Brown County42.4ยฐF760.4ยฐF42.0ยฐF
Bureau County39.7ยฐF821.1ยฐF38.6ยฐF
Calhoun County44.5ยฐF780.7ยฐF43.8ยฐF
Carroll County37.9ยฐF770.9ยฐF37.0ยฐF
Cass County42.2ยฐF690.2ยฐF42.0ยฐF
Champaign County41.6ยฐF770.7ยฐF40.9ยฐF
Christian County43.2ยฐF770.8ยฐF42.5ยฐF
Clark County43.7ยฐF770.8ยฐF42.9ยฐF
Clay County44.6ยฐF720.5ยฐF44.0ยฐF
Clinton County45.4ยฐF770.6ยฐF44.7ยฐF
Coles County42.8ยฐF710.5ยฐF42.3ยฐF
Cook County40.5ยฐF811.0ยฐF39.5ยฐF
Crawford County44.9ยฐF831.1ยฐF43.8ยฐF
Cumberland County43.3ยฐF690.4ยฐF42.9ยฐF
DeKalb County39.1ยฐF851.3ยฐF37.8ยฐF
De Witt County41.6ยฐF770.8ยฐF40.8ยฐF
Douglas County42.5ยฐF740.8ยฐF41.7ยฐF
DuPage County39.9ยฐF811.1ยฐF38.8ยฐF
Edgar County43.0ยฐF811.0ยฐF42.0ยฐF
Edwards County45.9ยฐF780.8ยฐF45.1ยฐF
Effingham County43.5ยฐF680.4ยฐF43.2ยฐF
Fayette County44.3ยฐF770.7ยฐF43.6ยฐF
Ford County40.9ยฐF790.8ยฐF40.1ยฐF
Franklin County46.3ยฐF820.8ยฐF45.5ยฐF
Fulton County41.5ยฐF740.5ยฐF41.1ยฐF
Gallatin County46.8ยฐF730.4ยฐF46.4ยฐF
Greene County44.0ยฐF750.5ยฐF43.5ยฐF
Grundy County40.5ยฐF811.3ยฐF39.3ยฐF
Hamilton County46.3ยฐF830.9ยฐF45.4ยฐF
Hancock County42.0ยฐF750.6ยฐF41.4ยฐF
Hardin County47.1ยฐF720.4ยฐF46.7ยฐF
Henderson County41.0ยฐF780.7ยฐF40.3ยฐF
Henry County39.8ยฐF790.9ยฐF38.9ยฐF
Iroquois County41.0ยฐF820.9ยฐF40.1ยฐF
Jackson County46.1ยฐF760.5ยฐF45.6ยฐF
Jasper County44.3ยฐF760.7ยฐF43.5ยฐF
Jefferson County45.8ยฐF790.7ยฐF45.0ยฐF
Jersey County44.8ยฐF800.7ยฐF44.1ยฐF
Jo Daviess County37.4ยฐF810.8ยฐF36.6ยฐF
Johnson County46.5ยฐF690.1ยฐF46.4ยฐF
Kane County39.4ยฐF831.2ยฐF38.2ยฐF
Kankakee County41.1ยฐF871.4ยฐF39.7ยฐF
Kendall County40.3ยฐF841.3ยฐF39.0ยฐF
Knox County40.7ยฐF821.1ยฐF39.6ยฐF
Lake County39.4ยฐF801.0ยฐF38.4ยฐF
LaSalle County40.2ยฐF841.2ยฐF39.0ยฐF
Lawrence County45.4ยฐF790.9ยฐF44.5ยฐF
Lee County38.7ยฐF790.9ยฐF37.8ยฐF
Livingston County40.5ยฐF780.9ยฐF39.6ยฐF
Logan County42.1ยฐF760.7ยฐF41.4ยฐF
McDonough County41.3ยฐF740.5ยฐF40.8ยฐF
McHenry County38.0ยฐF740.7ยฐF37.3ยฐF
McLean County40.7ยฐF760.8ยฐF39.9ยฐF
Macon County42.4ยฐF760.7ยฐF41.7ยฐF
Macoupin County43.7ยฐF760.5ยฐF43.2ยฐF
Madison County45.3ยฐF790.6ยฐF44.7ยฐF
Marion County45.0ยฐF770.7ยฐF44.3ยฐF
Marshall County40.8ยฐF821.2ยฐF39.6ยฐF
Mason County42.2ยฐF750.4ยฐF41.8ยฐF
Massac County47.4ยฐF680.2ยฐF47.2ยฐF
Menard County42.7ยฐF770.7ยฐF41.9ยฐF
Mercer County40.3ยฐF790.8ยฐF39.4ยฐF
Monroe County46.3ยฐF790.7ยฐF45.6ยฐF
Montgomery County43.9ยฐF810.8ยฐF43.1ยฐF
Morgan County42.5ยฐF690.3ยฐF42.2ยฐF
Moultrie County42.8ยฐF760.8ยฐF42.0ยฐF
Ogle County38.2ยฐF800.9ยฐF37.3ยฐF
Peoria County41.0ยฐF760.9ยฐF40.2ยฐF
Perry County45.9ยฐF800.7ยฐF45.2ยฐF
Piatt County41.9ยฐF760.8ยฐF41.1ยฐF
Pike County43.5ยฐF770.6ยฐF42.8ยฐF
Pope County46.8ยฐF690.1ยฐF46.7ยฐF
Pulaski County47.6ยฐF710.4ยฐF47.2ยฐF
Putnam County40.8ยฐF841.2ยฐF39.5ยฐF
Randolph County46.1ยฐF780.7ยฐF45.4ยฐF
Richland County45.3ยฐF800.9ยฐF44.4ยฐF
Rock Island County39.9ยฐF790.9ยฐF39.0ยฐF
St. Clair County45.9ยฐF750.6ยฐF45.3ยฐF
Saline County46.5ยฐF760.5ยฐF46.0ยฐF
Sangamon County43.1ยฐF820.9ยฐF42.2ยฐF
Schuyler County41.7ยฐF630.2ยฐF41.6ยฐF
Scott County43.1ยฐF720.3ยฐF42.8ยฐF
Shelby County43.4ยฐF750.8ยฐF42.6ยฐF
Stark County40.1ยฐF780.9ยฐF39.2ยฐF
Stephenson County37.4ยฐF800.9ยฐF36.5ยฐF
Tazewell County41.3ยฐF760.7ยฐF40.6ยฐF
Union County46.3ยฐF670.1ยฐF46.2ยฐF
Vermilion County42.2ยฐF801.0ยฐF41.2ยฐF
Wabash County45.9ยฐF790.7ยฐF45.2ยฐF
Warren County40.7ยฐF790.9ยฐF39.8ยฐF
Washington County45.8ยฐF810.8ยฐF44.9ยฐF
Wayne County45.6ยฐF760.7ยฐF44.9ยฐF
White County46.4ยฐF770.7ยฐF45.8ยฐF
Whiteside County39.0ยฐF780.9ยฐF38.1ยฐF
Will County40.7ยฐF831.1ยฐF39.5ยฐF
Williamson County46.3ยฐF750.5ยฐF45.8ยฐF
Winnebago County37.9ยฐF760.7ยฐF37.2ยฐF
Woodford County40.6ยฐF801.0ยฐF39.6ยฐF

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