County Mapping

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 1991
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
Temp Average Temperature : 56.2ยฐF
Anomaly: 5.0ยฐF
Rank: 3rd Warmest
Mean: 51.1ยฐF
March - May 1991 Illinois County Average Temperature
County
Value
Anomaly
Rank
131 Years
1901-2000 Mean
Adams County 56.9ยฐF4.9ยฐF12952.0ยฐF
Alexander County 60.3ยฐF3.7ยฐF12756.5ยฐF
Bond County 58.8ยฐF5.4ยฐF12953.5ยฐF
Boone County 51.2ยฐF4.6ยฐF12546.6ยฐF
Brown County 56.8ยฐF5.0ยฐF12951.8ยฐF
Bureau County 53.5ยฐF4.9ยฐF12648.6ยฐF
Calhoun County 58.2ยฐF4.8ยฐF12953.4ยฐF
Carroll County 51.9ยฐF4.8ยฐF12647.1ยฐF
Cass County 57.1ยฐF5.1ยฐF12952.0ยฐF
Champaign County 55.9ยฐF5.6ยฐF12950.3ยฐF
Christian County 57.6ยฐF5.6ยฐF12952.0ยฐF
Clark County 57.2ยฐF5.0ยฐF12852.1ยฐF
Clay County 58.3ยฐF4.9ยฐF12853.4ยฐF
Clinton County 59.3ยฐF5.2ยฐF12954.2ยฐF
Coles County 56.8ยฐF5.2ยฐF12851.7ยฐF
Cook County 52.8ยฐF5.4ยฐF12747.4ยฐF
Crawford County 57.8ยฐF4.7ยฐF12853.0ยฐF
Cumberland County 57.3ยฐF5.0ยฐF12852.3ยฐF
DeKalb County 52.3ยฐF5.2ยฐF12747.2ยฐF
De Witt County 55.9ยฐF5.5ยฐF12950.4ยฐF
Douglas County 56.7ยฐF5.6ยฐF12951.1ยฐF
DuPage County 52.5ยฐF5.1ยฐF12647.4ยฐF
Edgar County 56.6ยฐF5.3ยฐF12851.3ยฐF
Edwards County 59.3ยฐF4.8ยฐF12854.5ยฐF
Effingham County 57.8ยฐF5.1ยฐF12952.7ยฐF
Fayette County 58.4ยฐF5.4ยฐF12953.0ยฐF
Ford County 55.0ยฐF5.5ยฐF12949.5ยฐF
Franklin County 59.1ยฐF4.2ยฐF12854.8ยฐF
Fulton County 55.9ยฐF4.9ยฐF12951.1ยฐF
Gallatin County 59.9ยฐF4.1ยฐF12855.8ยฐF
Greene County 58.0ยฐF4.9ยฐF12953.2ยฐF
Grundy County 54.1ยฐF5.5ยฐF12848.7ยฐF
Hamilton County 59.3ยฐF4.4ยฐF12854.9ยฐF
Hancock County 56.2ยฐF4.9ยฐF12951.3ยฐF
Hardin County 60.0ยฐF4.1ยฐF12855.9ยฐF
Henderson County 55.3ยฐF4.9ยฐF12850.3ยฐF
Henry County 53.5ยฐF4.8ยฐF12648.8ยฐF
Iroquois County 54.7ยฐF5.4ยฐF12949.3ยฐF
Jackson County 59.5ยฐF4.4ยฐF12855.1ยฐF
Jasper County 57.8ยฐF4.8ยฐF12853.0ยฐF
Jefferson County 58.8ยฐF4.3ยฐF12854.4ยฐF
Jersey County 58.5ยฐF4.9ยฐF12953.6ยฐF
Jo Daviess County 51.1ยฐF4.6ยฐF12546.5ยฐF
Johnson County 59.7ยฐF4.1ยฐF12855.6ยฐF
Kane County 52.0ยฐF4.9ยฐF12647.1ยฐF
Kankakee County 54.0ยฐF5.3ยฐF12848.7ยฐF
Kendall County 53.3ยฐF5.1ยฐF12648.2ยฐF
Knox County 54.4ยฐF4.9ยฐF12949.5ยฐF
Lake County 51.1ยฐF5.1ยฐF12746.0ยฐF
LaSalle County 54.1ยฐF5.5ยฐF12948.6ยฐF
Lawrence County 58.6ยฐF4.7ยฐF12853.9ยฐF
Lee County 52.7ยฐF5.0ยฐF12747.7ยฐF
Livingston County 54.7ยฐF5.5ยฐF12949.1ยฐF
Logan County 56.4ยฐF5.3ยฐF12951.2ยฐF
McDonough County 55.8ยฐF5.0ยฐF12950.8ยฐF
McHenry County 50.8ยฐF4.7ยฐF12546.1ยฐF
McLean County 55.2ยฐF5.6ยฐF12849.6ยฐF
Macon County 56.7ยฐF5.5ยฐF12951.2ยฐF
Macoupin County 58.0ยฐF5.2ยฐF12952.8ยฐF
Madison County 59.0ยฐF4.8ยฐF12954.1ยฐF
Marion County 58.8ยฐF5.1ยฐF12953.7ยฐF
Marshall County 54.9ยฐF5.4ยฐF12849.4ยฐF
Mason County 56.6ยฐF4.9ยฐF12851.7ยฐF
Massac County 60.3ยฐF3.9ยฐF12756.4ยฐF
Menard County 56.7ยฐF5.0ยฐF12951.7ยฐF
Mercer County 54.3ยฐF4.8ยฐF12849.5ยฐF
Monroe County 59.8ยฐF4.8ยฐF12855.0ยฐF
Montgomery County 58.0ยฐF5.4ยฐF12852.6ยฐF
Morgan County 57.3ยฐF5.2ยฐF12952.1ยฐF
Moultrie County 56.8ยฐF5.3ยฐF12951.5ยฐF
Ogle County 52.1ยฐF5.0ยฐF12647.2ยฐF
Peoria County 55.1ยฐF5.1ยฐF12850.0ยฐF
Perry County 59.1ยฐF4.5ยฐF12854.6ยฐF
Piatt County 56.2ยฐF5.6ยฐF12950.6ยฐF
Pike County 57.3ยฐF4.8ยฐF12952.5ยฐF
Pope County 59.8ยฐF4.0ยฐF12755.8ยฐF
Pulaski County 60.3ยฐF3.8ยฐF12756.5ยฐF
Putnam County 54.7ยฐF5.3ยฐF12949.4ยฐF
Randolph County 60.0ยฐF5.2ยฐF12854.8ยฐF
Richland County 58.4ยฐF4.6ยฐF12853.8ยฐF
Rock Island County 53.8ยฐF4.8ยฐF12649.0ยฐF
St. Clair County 59.5ยฐF4.8ยฐF12954.7ยฐF
Saline County 59.5ยฐF4.1ยฐF12855.4ยฐF
Sangamon County 57.1ยฐF5.2ยฐF12951.9ยฐF
Schuyler County 56.6ยฐF5.0ยฐF12951.6ยฐF
Scott County 57.5ยฐF5.0ยฐF12952.5ยฐF
Shelby County 57.4ยฐF5.3ยฐF12952.1ยฐF
Stark County 54.0ยฐF4.9ยฐF12849.1ยฐF
Stephenson County 50.9ยฐF4.5ยฐF12646.4ยฐF
Tazewell County 55.7ยฐF5.3ยฐF12850.5ยฐF
Union County 59.7ยฐF4.1ยฐF12855.6ยฐF
Vermilion County 55.9ยฐF5.5ยฐF12950.4ยฐF
Wabash County 59.3ยฐF4.8ยฐF12854.5ยฐF
Warren County 54.8ยฐF5.0ยฐF12949.7ยฐF
Washington County 59.2ยฐF4.9ยฐF12854.3ยฐF
Wayne County 59.1ยฐF4.9ยฐF12854.2ยฐF
White County 59.7ยฐF4.5ยฐF12855.2ยฐF
Whiteside County 52.9ยฐF4.7ยฐF12748.1ยฐF
Will County 53.6ยฐF5.2ยฐF12848.4ยฐF
Williamson County 59.3ยฐF4.2ยฐF12855.1ยฐF
Winnebago County 51.5ยฐF4.7ยฐF12546.9ยฐF
Woodford County 55.0ยฐF5.6ยฐF12849.4ยฐF

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