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 1904
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
October - December 1904 Illinois County Average Temperature
County
Value
Rank
130 Years
Anomaly
1901-2000 Mean
Adams County42.2ยฐF590.0ยฐF42.2ยฐF
Alexander County46.6ยฐF52-0.4ยฐF47.1ยฐF
Bond County44.2ยฐF640.1ยฐF44.1ยฐF
Boone County36.9ยฐF50-0.3ยฐF37.2ยฐF
Brown County42.2ยฐF720.2ยฐF42.0ยฐF
Bureau County38.1ยฐF45-0.5ยฐF38.6ยฐF
Calhoun County43.4ยฐF49-0.4ยฐF43.8ยฐF
Carroll County36.4ยฐF43-0.6ยฐF37.0ยฐF
Cass County42.0ยฐF570.0ยฐF42.0ยฐF
Champaign County39.6ยฐF31-1.3ยฐF40.9ยฐF
Christian County41.8ยฐF42-0.6ยฐF42.5ยฐF
Clark County41.8ยฐF33-1.1ยฐF42.9ยฐF
Clay County42.4ยฐF25-1.6ยฐF44.0ยฐF
Clinton County44.2ยฐF49-0.5ยฐF44.7ยฐF
Coles County41.0ยฐF30-1.3ยฐF42.3ยฐF
Cook County39.1ยฐF47-0.4ยฐF39.5ยฐF
Crawford County42.1ยฐF26-1.7ยฐF43.8ยฐF
Cumberland County41.8ยฐF34-1.1ยฐF42.9ยฐF
DeKalb County37.3ยฐF43-0.5ยฐF37.8ยฐF
De Witt County39.8ยฐF38-0.9ยฐF40.8ยฐF
Douglas County40.0ยฐF28-1.7ยฐF41.7ยฐF
DuPage County38.5ยฐF50-0.3ยฐF38.8ยฐF
Edgar County41.2ยฐF41-0.9ยฐF42.0ยฐF
Edwards County43.0ยฐF21-2.1ยฐF45.1ยฐF
Effingham County42.4ยฐF39-0.8ยฐF43.2ยฐF
Fayette County43.6ยฐF640.1ยฐF43.6ยฐF
Ford County39.0ยฐF36-1.1ยฐF40.1ยฐF
Franklin County44.7ยฐF41-0.8ยฐF45.5ยฐF
Fulton County41.1ยฐF620.0ยฐF41.1ยฐF
Gallatin County45.5ยฐF43-0.9ยฐF46.4ยฐF
Greene County43.2ยฐF52-0.3ยฐF43.5ยฐF
Grundy County38.5ยฐF40-0.7ยฐF39.3ยฐF
Hamilton County44.2ยฐF31-1.2ยฐF45.4ยฐF
Hancock County41.4ยฐF620.0ยฐF41.4ยฐF
Hardin County46.5ยฐF56-0.2ยฐF46.7ยฐF
Henderson County40.1ยฐF53-0.2ยฐF40.3ยฐF
Henry County38.7ยฐF56-0.1ยฐF38.9ยฐF
Iroquois County38.7ยฐF33-1.4ยฐF40.1ยฐF
Jackson County44.9ยฐF41-0.7ยฐF45.6ยฐF
Jasper County42.0ยฐF25-1.5ยฐF43.5ยฐF
Jefferson County44.2ยฐF41-0.8ยฐF45.0ยฐF
Jersey County43.9ยฐF54-0.2ยฐF44.1ยฐF
Jo Daviess County36.0ยฐF44-0.6ยฐF36.6ยฐF
Johnson County46.3ยฐF62-0.1ยฐF46.4ยฐF
Kane County37.8ยฐF50-0.4ยฐF38.2ยฐF
Kankakee County38.4ยฐF34-1.3ยฐF39.7ยฐF
Kendall County38.5ยฐF45-0.6ยฐF39.0ยฐF
Knox County39.1ยฐF47-0.6ยฐF39.6ยฐF
Lake County38.3ยฐF57-0.1ยฐF38.4ยฐF
LaSalle County38.0ยฐF39-1.0ยฐF39.0ยฐF
Lawrence County42.6ยฐF22-1.9ยฐF44.5ยฐF
Lee County37.2ยฐF43-0.6ยฐF37.8ยฐF
Livingston County38.7ยฐF41-0.9ยฐF39.6ยฐF
Logan County40.9ยฐF46-0.5ยฐF41.4ยฐF
McDonough County40.8ยฐF61-0.1ยฐF40.8ยฐF
McHenry County37.1ยฐF55-0.2ยฐF37.3ยฐF
McLean County39.2ยฐF42-0.7ยฐF39.9ยฐF
Macon County40.7ยฐF39-0.9ยฐF41.7ยฐF
Macoupin County42.8ยฐF47-0.4ยฐF43.2ยฐF
Madison County44.7ยฐF58-0.1ยฐF44.7ยฐF
Marion County43.5ยฐF43-0.8ยฐF44.3ยฐF
Marshall County38.8ยฐF41-0.8ยฐF39.6ยฐF
Mason County41.9ยฐF620.1ยฐF41.8ยฐF
Massac County47.4ยฐF680.2ยฐF47.2ยฐF
Menard County41.6ยฐF53-0.3ยฐF41.9ยฐF
Mercer County39.3ยฐF55-0.1ยฐF39.4ยฐF
Monroe County44.8ยฐF39-0.8ยฐF45.6ยฐF
Montgomery County42.9ยฐF52-0.2ยฐF43.1ยฐF
Morgan County41.9ยฐF48-0.4ยฐF42.2ยฐF
Moultrie County40.8ยฐF32-1.2ยฐF42.0ยฐF
Ogle County36.7ยฐF41-0.6ยฐF37.3ยฐF
Peoria County39.9ยฐF54-0.3ยฐF40.2ยฐF
Perry County44.2ยฐF30-1.0ยฐF45.2ยฐF
Piatt County39.7ยฐF31-1.4ยฐF41.1ยฐF
Pike County42.5ยฐF49-0.4ยฐF42.8ยฐF
Pope County46.8ยฐF690.1ยฐF46.7ยฐF
Pulaski County46.9ยฐF56-0.3ยฐF47.2ยฐF
Putnam County38.7ยฐF41-0.8ยฐF39.5ยฐF
Randolph County44.0ยฐF27-1.3ยฐF45.4ยฐF
Richland County42.5ยฐF23-1.9ยฐF44.4ยฐF
Rock Island County39.0ยฐF580.0ยฐF39.0ยฐF
St. Clair County44.7ยฐF44-0.6ยฐF45.3ยฐF
Saline County45.4ยฐF49-0.6ยฐF46.0ยฐF
Sangamon County41.6ยฐF44-0.6ยฐF42.2ยฐF
Schuyler County41.8ยฐF700.3ยฐF41.6ยฐF
Scott County42.5ยฐF50-0.3ยฐF42.8ยฐF
Shelby County41.9ยฐF40-0.7ยฐF42.6ยฐF
Stark County38.7ยฐF49-0.5ยฐF39.2ยฐF
Stephenson County35.5ยฐF39-1.0ยฐF36.5ยฐF
Tazewell County40.3ยฐF50-0.3ยฐF40.6ยฐF
Union County45.7ยฐF53-0.5ยฐF46.2ยฐF
Vermilion County39.9ยฐF31-1.3ยฐF41.2ยฐF
Wabash County43.1ยฐF20-2.1ยฐF45.2ยฐF
Warren County39.2ยฐF46-0.6ยฐF39.8ยฐF
Washington County43.8ยฐF31-1.1ยฐF44.9ยฐF
Wayne County43.4ยฐF25-1.4ยฐF44.9ยฐF
White County44.1ยฐF23-1.7ยฐF45.8ยฐF
Whiteside County37.8ยฐF47-0.3ยฐF38.1ยฐF
Will County38.7ยฐF40-0.8ยฐF39.5ยฐF
Williamson County45.3ยฐF51-0.5ยฐF45.8ยฐF
Winnebago County36.6ยฐF44-0.6ยฐF37.2ยฐF
Woodford County38.9ยฐF45-0.7ยฐF39.6ยฐF

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