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
October - December 1991
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
Temp Average Temperature : --
Anomaly: --
Rank: -- Coldest
Mean: --
October - December 1991 Illinois County Average Temperature
County
Value
Anomaly
Rank
130 Years
1901-2000 Mean
Adams County 42.1ยฐF-0.1ยฐF5542.2ยฐF
Alexander County 47.9ยฐF0.8ยฐF8247.1ยฐF
Bond County 44.6ยฐF0.5ยฐF7444.1ยฐF
Boone County 37.0ยฐF-0.2ยฐF5637.2ยฐF
Brown County 41.8ยฐF-0.1ยฐF5442.0ยฐF
Bureau County 38.8ยฐF0.2ยฐF6338.6ยฐF
Calhoun County 44.3ยฐF0.5ยฐF7443.8ยฐF
Carroll County 36.8ยฐF-0.2ยฐF5337.0ยฐF
Cass County 42.2ยฐF0.2ยฐF6942.0ยฐF
Champaign County 42.2ยฐF1.2ยฐF8440.9ยฐF
Christian County 43.2ยฐF0.7ยฐF7742.5ยฐF
Clark County 44.6ยฐF1.7ยฐF9442.9ยฐF
Clay County 45.4ยฐF1.3ยฐF9144.0ยฐF
Clinton County 45.6ยฐF0.8ยฐF8144.7ยฐF
Coles County 43.5ยฐF1.3ยฐF8342.3ยฐF
Cook County 39.7ยฐF0.2ยฐF6339.5ยฐF
Crawford County 45.6ยฐF1.8ยฐF9843.8ยฐF
Cumberland County 44.2ยฐF1.3ยฐF8542.9ยฐF
DeKalb County 37.9ยฐF0.1ยฐF6337.8ยฐF
De Witt County 41.8ยฐF1.0ยฐF8240.8ยฐF
Douglas County 43.3ยฐF1.6ยฐF9241.7ยฐF
DuPage County 39.0ยฐF0.2ยฐF6338.8ยฐF
Edgar County 43.6ยฐF1.5ยฐF9142.0ยฐF
Edwards County 46.2ยฐF1.0ยฐF8245.1ยฐF
Effingham County 44.3ยฐF1.2ยฐF8443.2ยฐF
Fayette County 44.4ยฐF0.8ยฐF7943.6ยฐF
Ford County 40.8ยฐF0.7ยฐF7640.1ยฐF
Franklin County 46.2ยฐF0.7ยฐF7945.5ยฐF
Fulton County 40.8ยฐF-0.3ยฐF5341.1ยฐF
Gallatin County 47.1ยฐF0.7ยฐF8046.4ยฐF
Greene County 43.9ยฐF0.4ยฐF7343.5ยฐF
Grundy County 39.9ยฐF0.7ยฐF7239.3ยฐF
Hamilton County 46.1ยฐF0.7ยฐF7845.4ยฐF
Hancock County 40.8ยฐF-0.6ยฐF4541.4ยฐF
Hardin County 47.4ยฐF0.7ยฐF8046.7ยฐF
Henderson County 39.5ยฐF-0.8ยฐF4240.3ยฐF
Henry County 38.7ยฐF-0.2ยฐF5638.9ยฐF
Iroquois County 40.9ยฐF0.8ยฐF7840.1ยฐF
Jackson County 46.5ยฐF0.9ยฐF8545.6ยฐF
Jasper County 45.1ยฐF1.6ยฐF9243.5ยฐF
Jefferson County 45.7ยฐF0.7ยฐF7645.0ยฐF
Jersey County 44.5ยฐF0.4ยฐF7444.1ยฐF
Jo Daviess County 35.9ยฐF-0.7ยฐF4236.6ยฐF
Johnson County 47.3ยฐF0.9ยฐF8346.4ยฐF
Kane County 38.1ยฐF-0.1ยฐF5938.2ยฐF
Kankakee County 40.1ยฐF0.4ยฐF6739.7ยฐF
Kendall County 39.4ยฐF0.4ยฐF7039.0ยฐF
Knox County 39.2ยฐF-0.5ยฐF5139.6ยฐF
Lake County 38.4ยฐF0.0ยฐF6138.4ยฐF
LaSalle County 39.7ยฐF0.7ยฐF7339.0ยฐF
Lawrence County 45.8ยฐF1.2ยฐF8544.5ยฐF
Lee County 37.9ยฐF0.1ยฐF6037.8ยฐF
Livingston County 40.3ยฐF0.7ยฐF7639.6ยฐF
Logan County 42.4ยฐF0.9ยฐF7941.4ยฐF
McDonough County 40.3ยฐF-0.5ยฐF4640.8ยฐF
McHenry County 37.0ยฐF-0.3ยฐF5037.3ยฐF
McLean County 40.9ยฐF1.0ยฐF8039.9ยฐF
Macon County 42.6ยฐF0.9ยฐF8041.7ยฐF
Macoupin County 43.8ยฐF0.6ยฐF7743.2ยฐF
Madison County 45.2ยฐF0.5ยฐF7544.7ยฐF
Marion County 45.2ยฐF0.9ยฐF8344.3ยฐF
Marshall County 40.2ยฐF0.7ยฐF7639.6ยฐF
Mason County 41.9ยฐF0.1ยฐF6241.8ยฐF
Massac County 48.2ยฐF1.0ยฐF8347.2ยฐF
Menard County 42.4ยฐF0.5ยฐF7441.9ยฐF
Mercer County 38.6ยฐF-0.8ยฐF4339.4ยฐF
Monroe County 46.2ยฐF0.6ยฐF7545.6ยฐF
Montgomery County 43.6ยฐF0.5ยฐF7443.1ยฐF
Morgan County 42.8ยฐF0.5ยฐF7542.2ยฐF
Moultrie County 43.1ยฐF1.1ยฐF8342.0ยฐF
Ogle County 37.3ยฐF-0.1ยฐF6037.3ยฐF
Peoria County 40.2ยฐF0.0ยฐF6040.2ยฐF
Perry County 46.2ยฐF1.0ยฐF8545.2ยฐF
Piatt County 42.3ยฐF1.2ยฐF8241.1ยฐF
Pike County 43.0ยฐF0.2ยฐF6442.8ยฐF
Pope County 47.5ยฐF0.9ยฐF8246.7ยฐF
Pulaski County 47.9ยฐF0.8ยฐF8047.2ยฐF
Putnam County 40.1ยฐF0.6ยฐF7539.5ยฐF
Randolph County 46.3ยฐF0.9ยฐF8445.4ยฐF
Richland County 45.6ยฐF1.2ยฐF8544.4ยฐF
Rock Island County 38.4ยฐF-0.6ยฐF4639.0ยฐF
St. Clair County 46.1ยฐF0.8ยฐF8145.3ยฐF
Saline County 46.8ยฐF0.8ยฐF8046.0ยฐF
Sangamon County 42.9ยฐF0.6ยฐF7342.2ยฐF
Schuyler County 41.4ยฐF-0.2ยฐF5441.6ยฐF
Scott County 43.1ยฐF0.3ยฐF7242.8ยฐF
Shelby County 43.5ยฐF0.9ยฐF7842.6ยฐF
Stark County 39.4ยฐF0.2ยฐF6439.2ยฐF
Stephenson County 35.7ยฐF-0.8ยฐF4236.5ยฐF
Tazewell County 41.0ยฐF0.4ยฐF6540.6ยฐF
Union County 47.1ยฐF1.0ยฐF8346.2ยฐF
Vermilion County 42.4ยฐF1.2ยฐF8441.2ยฐF
Wabash County 46.2ยฐF1.1ยฐF8345.2ยฐF
Warren County 39.0ยฐF-0.8ยฐF4139.8ยฐF
Washington County 45.9ยฐF1.0ยฐF8444.9ยฐF
Wayne County 45.8ยฐF1.0ยฐF8044.9ยฐF
White County 46.6ยฐF0.8ยฐF8045.8ยฐF
Whiteside County 37.8ยฐF-0.3ยฐF4738.1ยฐF
Will County 39.9ยฐF0.3ยฐF6839.5ยฐF
Williamson County 46.5ยฐF0.7ยฐF8245.8ยฐF
Winnebago County 36.9ยฐF-0.3ยฐF5337.2ยฐF
Woodford County 40.4ยฐF0.8ยฐF7439.6ยฐF

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