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 2020
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Rank:
Anomaly:
Mean:
March - May 2020 Illinois County Average Temperature
County
Value
Rank
131 Years
Anomaly
1901-2000 Mean
Adams County51.9ยฐF59-0.1ยฐF52.0ยฐF
Alexander County57.5ยฐF821.0ยฐF56.5ยฐF
Bond County53.5ยฐF580.0ยฐF53.5ยฐF
Boone County47.7ยฐF851.1ยฐF46.6ยฐF
Brown County51.7ยฐF610.0ยฐF51.8ยฐF
Bureau County48.8ยฐF640.2ยฐF48.6ยฐF
Calhoun County53.4ยฐF580.0ยฐF53.4ยฐF
Carroll County48.6ยฐF921.5ยฐF47.1ยฐF
Cass County51.8ยฐF58-0.1ยฐF52.0ยฐF
Champaign County50.3ยฐF560.0ยฐF50.3ยฐF
Christian County52.0ยฐF580.0ยฐF52.0ยฐF
Clark County52.3ยฐF600.1ยฐF52.1ยฐF
Clay County53.9ยฐF720.5ยฐF53.4ยฐF
Clinton County54.3ยฐF600.2ยฐF54.2ยฐF
Coles County51.4ยฐF49-0.3ยฐF51.7ยฐF
Cook County48.5ยฐF821.1ยฐF47.4ยฐF
Crawford County53.5ยฐF660.5ยฐF53.0ยฐF
Cumberland County52.2ยฐF55-0.1ยฐF52.3ยฐF
DeKalb County47.6ยฐF720.4ยฐF47.2ยฐF
De Witt County51.2ยฐF770.8ยฐF50.4ยฐF
Douglas County51.3ยฐF600.2ยฐF51.1ยฐF
DuPage County48.3ยฐF800.9ยฐF47.4ยฐF
Edgar County51.0ยฐF51-0.3ยฐF51.3ยฐF
Edwards County55.2ยฐF800.7ยฐF54.5ยฐF
Effingham County52.8ยฐF590.1ยฐF52.7ยฐF
Fayette County52.8ยฐF55-0.2ยฐF53.0ยฐF
Ford County49.6ยฐF600.1ยฐF49.5ยฐF
Franklin County55.1ยฐF640.3ยฐF54.8ยฐF
Fulton County51.0ยฐF61-0.1ยฐF51.1ยฐF
Gallatin County55.9ยฐF630.1ยฐF55.8ยฐF
Greene County53.0ยฐF58-0.2ยฐF53.2ยฐF
Grundy County49.3ยฐF740.7ยฐF48.7ยฐF
Hamilton County55.5ยฐF760.6ยฐF54.9ยฐF
Hancock County51.4ยฐF620.1ยฐF51.3ยฐF
Hardin County56.3ยฐF700.3ยฐF55.9ยฐF
Henderson County50.4ยฐF630.1ยฐF50.3ยฐF
Henry County49.3ยฐF690.6ยฐF48.8ยฐF
Iroquois County49.9ยฐF730.6ยฐF49.3ยฐF
Jackson County55.3ยฐF600.2ยฐF55.1ยฐF
Jasper County53.3ยฐF610.4ยฐF53.0ยฐF
Jefferson County54.7ยฐF630.3ยฐF54.4ยฐF
Jersey County53.8ยฐF630.1ยฐF53.6ยฐF
Jo Daviess County47.4ยฐF780.9ยฐF46.5ยฐF
Johnson County56.4ยฐF820.7ยฐF55.6ยฐF
Kane County47.8ยฐF770.7ยฐF47.1ยฐF
Kankakee County49.3ยฐF730.6ยฐF48.7ยฐF
Kendall County48.6ยฐF690.4ยฐF48.2ยฐF
Knox County49.3ยฐF60-0.1ยฐF49.5ยฐF
Lake County47.3ยฐF901.3ยฐF46.0ยฐF
LaSalle County49.3ยฐF730.6ยฐF48.6ยฐF
Lawrence County54.1ยฐF570.2ยฐF53.9ยฐF
Lee County48.3ยฐF730.6ยฐF47.7ยฐF
Livingston County49.6ยฐF690.5ยฐF49.1ยฐF
Logan County51.9ยฐF730.7ยฐF51.2ยฐF
McDonough County50.7ยฐF58-0.1ยฐF50.8ยฐF
McHenry County47.4ยฐF901.3ยฐF46.1ยฐF
McLean County50.5ยฐF811.0ยฐF49.6ยฐF
Macon County51.6ยฐF690.4ยฐF51.2ยฐF
Macoupin County52.8ยฐF580.0ยฐF52.8ยฐF
Madison County54.3ยฐF590.1ยฐF54.1ยฐF
Marion County53.8ยฐF600.1ยฐF53.7ยฐF
Marshall County49.9ยฐF690.5ยฐF49.4ยฐF
Mason County51.9ยฐF630.2ยฐF51.7ยฐF
Massac County57.6ยฐF831.2ยฐF56.4ยฐF
Menard County51.8ยฐF610.1ยฐF51.7ยฐF
Mercer County49.8ยฐF680.3ยฐF49.5ยฐF
Monroe County55.7ยฐF740.7ยฐF55.0ยฐF
Montgomery County52.6ยฐF570.0ยฐF52.6ยฐF
Morgan County52.0ยฐF58-0.1ยฐF52.1ยฐF
Moultrie County51.4ยฐF57-0.1ยฐF51.5ยฐF
Ogle County48.4ยฐF851.2ยฐF47.2ยฐF
Peoria County50.7ยฐF700.6ยฐF50.0ยฐF
Perry County54.9ยฐF620.3ยฐF54.6ยฐF
Piatt County50.9ยฐF640.3ยฐF50.6ยฐF
Pike County52.3ยฐF59-0.2ยฐF52.5ยฐF
Pope County56.4ยฐF770.6ยฐF55.8ยฐF
Pulaski County57.8ยฐF861.3ยฐF56.5ยฐF
Putnam County49.6ยฐF650.2ยฐF49.4ยฐF
Randolph County55.3ยฐF670.5ยฐF54.8ยฐF
Richland County54.0ยฐF580.3ยฐF53.8ยฐF
Rock Island County49.8ยฐF740.8ยฐF49.0ยฐF
St. Clair County55.3ยฐF730.6ยฐF54.7ยฐF
Saline County55.7ยฐF630.2ยฐF55.4ยฐF
Sangamon County51.9ยฐF580.0ยฐF51.9ยฐF
Schuyler County51.7ยฐF620.0ยฐF51.6ยฐF
Scott County52.3ยฐF54-0.2ยฐF52.5ยฐF
Shelby County51.9ยฐF52-0.2ยฐF52.1ยฐF
Stark County49.4ยฐF650.3ยฐF49.1ยฐF
Stephenson County47.5ยฐF811.1ยฐF46.4ยฐF
Tazewell County51.4ยฐF761.0ยฐF50.5ยฐF
Union County56.3ยฐF780.7ยฐF55.6ยฐF
Vermilion County50.5ยฐF590.0ยฐF50.4ยฐF
Wabash County54.9ยฐF630.4ยฐF54.5ยฐF
Warren County49.7ยฐF62-0.1ยฐF49.7ยฐF
Washington County54.7ยฐF640.3ยฐF54.3ยฐF
Wayne County55.2ยฐF841.0ยฐF54.2ยฐF
White County55.7ยฐF720.4ยฐF55.2ยฐF
Whiteside County49.2ยฐF791.1ยฐF48.1ยฐF
Will County48.8ยฐF710.4ยฐF48.4ยฐF
Williamson County55.4ยฐF680.3ยฐF55.1ยฐF
Winnebago County48.1ยฐF851.3ยฐF46.9ยฐF
Woodford County50.4ยฐF801.0ยฐF49.4ยฐF

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