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 1900
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
March - May 1900 Illinois County Average Temperature
County
Value
Rank
131 Years
Anomaly
1901-2000 Mean
Adams County51.4ยฐF53-0.6ยฐF52.0ยฐF
Alexander County56.5ยฐF520.0ยฐF56.5ยฐF
Bond County52.9ยฐF47-0.6ยฐF53.5ยฐF
Boone County45.7ยฐF45-0.9ยฐF46.6ยฐF
Brown County51.2ยฐF53-0.6ยฐF51.8ยฐF
Bureau County46.7ยฐF24-1.9ยฐF48.6ยฐF
Calhoun County52.8ยฐF47-0.6ยฐF53.4ยฐF
Carroll County46.0ยฐF39-1.1ยฐF47.1ยฐF
Cass County50.9ยฐF41-1.0ยฐF52.0ยฐF
Champaign County48.9ยฐF31-1.4ยฐF50.3ยฐF
Christian County50.7ยฐF36-1.3ยฐF52.0ยฐF
Clark County51.4ยฐF44-0.7ยฐF52.1ยฐF
Clay County52.6ยฐF41-0.9ยฐF53.4ยฐF
Clinton County53.4ยฐF45-0.7ยฐF54.2ยฐF
Coles County50.8ยฐF42-0.8ยฐF51.7ยฐF
Cook County46.9ยฐF51-0.5ยฐF47.4ยฐF
Crawford County52.3ยฐF43-0.8ยฐF53.0ยฐF
Cumberland County51.6ยฐF43-0.7ยฐF52.3ยฐF
DeKalb County46.0ยฐF40-1.1ยฐF47.2ยฐF
De Witt County48.5ยฐF25-1.9ยฐF50.4ยฐF
Douglas County49.8ยฐF34-1.3ยฐF51.1ยฐF
DuPage County46.7ยฐF48-0.7ยฐF47.4ยฐF
Edgar County50.5ยฐF41-0.8ยฐF51.3ยฐF
Edwards County53.3ยฐF38-1.2ยฐF54.5ยฐF
Effingham County52.1ยฐF47-0.6ยฐF52.7ยฐF
Fayette County52.5ยฐF47-0.5ยฐF53.0ยฐF
Ford County47.5ยฐF22-2.0ยฐF49.5ยฐF
Franklin County53.9ยฐF42-0.9ยฐF54.8ยฐF
Fulton County49.6ยฐF35-1.4ยฐF51.1ยฐF
Gallatin County55.3ยฐF46-0.5ยฐF55.8ยฐF
Greene County52.3ยฐF45-0.9ยฐF53.2ยฐF
Grundy County47.1ยฐF30-1.6ยฐF48.7ยฐF
Hamilton County54.1ยฐF42-0.8ยฐF54.9ยฐF
Hancock County50.6ยฐF51-0.7ยฐF51.3ยฐF
Hardin County55.8ยฐF55-0.2ยฐF55.9ยฐF
Henderson County49.7ยฐF51-0.6ยฐF50.3ยฐF
Henry County47.3ยฐF35-1.4ยฐF48.8ยฐF
Iroquois County47.1ยฐF17-2.2ยฐF49.3ยฐF
Jackson County54.1ยฐF39-1.0ยฐF55.1ยฐF
Jasper County52.1ยฐF42-0.9ยฐF53.0ยฐF
Jefferson County53.5ยฐF42-0.9ยฐF54.4ยฐF
Jersey County52.8ยฐF43-0.8ยฐF53.6ยฐF
Jo Daviess County45.7ยฐF49-0.8ยฐF46.5ยฐF
Johnson County55.5ยฐF51-0.1ยฐF55.6ยฐF
Kane County46.3ยฐF50-0.8ยฐF47.1ยฐF
Kankakee County47.1ยฐF27-1.6ยฐF48.7ยฐF
Kendall County47.0ยฐF37-1.2ยฐF48.2ยฐF
Knox County48.0ยฐF34-1.5ยฐF49.5ยฐF
Lake County45.9ยฐF63-0.1ยฐF46.0ยฐF
LaSalle County46.7ยฐF23-2.0ยฐF48.6ยฐF
Lawrence County52.9ยฐF39-1.0ยฐF53.9ยฐF
Lee County46.4ยฐF38-1.3ยฐF47.7ยฐF
Livingston County47.0ยฐF21-2.1ยฐF49.1ยฐF
Logan County49.3ยฐF26-1.9ยฐF51.2ยฐF
McDonough County49.8ยฐF44-1.0ยฐF50.8ยฐF
McHenry County45.6ยฐF52-0.6ยฐF46.1ยฐF
McLean County47.6ยฐF23-1.9ยฐF49.6ยฐF
Macon County49.6ยฐF28-1.6ยฐF51.2ยฐF
Macoupin County51.8ยฐF42-1.0ยฐF52.8ยฐF
Madison County53.5ยฐF46-0.7ยฐF54.1ยฐF
Marion County53.0ยฐF46-0.7ยฐF53.7ยฐF
Marshall County47.3ยฐF20-2.2ยฐF49.4ยฐF
Mason County50.1ยฐF34-1.6ยฐF51.7ยฐF
Massac County56.9ยฐF680.4ยฐF56.4ยฐF
Menard County50.3ยฐF35-1.4ยฐF51.7ยฐF
Mercer County48.4ยฐF44-1.1ยฐF49.5ยฐF
Monroe County54.0ยฐF39-1.0ยฐF55.0ยฐF
Montgomery County51.6ยฐF42-1.0ยฐF52.6ยฐF
Morgan County51.0ยฐF43-1.0ยฐF52.1ยฐF
Moultrie County50.4ยฐF37-1.1ยฐF51.5ยฐF
Ogle County46.2ยฐF44-1.0ยฐF47.2ยฐF
Peoria County48.2ยฐF27-1.8ยฐF50.0ยฐF
Perry County53.3ยฐF34-1.3ยฐF54.6ยฐF
Piatt County49.1ยฐF30-1.5ยฐF50.6ยฐF
Pike County52.0ยฐF50-0.5ยฐF52.5ยฐF
Pope County56.0ยฐF610.1ยฐF55.8ยฐF
Pulaski County56.5ยฐF540.0ยฐF56.5ยฐF
Putnam County47.1ยฐF17-2.3ยฐF49.4ยฐF
Randolph County53.6ยฐF36-1.3ยฐF54.8ยฐF
Richland County52.6ยฐF37-1.1ยฐF53.8ยฐF
Rock Island County47.9ยฐF42-1.1ยฐF49.0ยฐF
St. Clair County53.9ยฐF42-0.8ยฐF54.7ยฐF
Saline County54.9ยฐF46-0.6ยฐF55.4ยฐF
Sangamon County50.6ยฐF36-1.3ยฐF51.9ยฐF
Schuyler County50.7ยฐF45-0.9ยฐF51.6ยฐF
Scott County51.9ยฐF48-0.7ยฐF52.5ยฐF
Shelby County51.2ยฐF43-0.9ยฐF52.1ยฐF
Stark County47.2ยฐF24-1.9ยฐF49.1ยฐF
Stephenson County45.4ยฐF44-1.0ยฐF46.4ยฐF
Tazewell County48.5ยฐF22-2.0ยฐF50.5ยฐF
Union County55.1ยฐF48-0.5ยฐF55.6ยฐF
Vermilion County49.1ยฐF32-1.3ยฐF50.4ยฐF
Wabash County53.4ยฐF38-1.1ยฐF54.5ยฐF
Warren County48.7ยฐF44-1.0ยฐF49.7ยฐF
Washington County53.3ยฐF40-1.1ยฐF54.3ยฐF
Wayne County53.2ยฐF41-1.0ยฐF54.2ยฐF
White County54.4ยฐF41-0.8ยฐF55.2ยฐF
Whiteside County46.9ยฐF36-1.2ยฐF48.1ยฐF
Will County47.3ยฐF37-1.1ยฐF48.4ยฐF
Williamson County54.4ยฐF45-0.7ยฐF55.1ยฐF
Winnebago County46.0ยฐF46-0.9ยฐF46.9ยฐF
Woodford County47.4ยฐF23-2.0ยฐF49.4ยฐF

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