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 1937
0ยฐF10ยฐF20ยฐF30ยฐF40ยฐF50ยฐF60ยฐF70ยฐF80ยฐF90ยฐF
Illinois (Hover over a County)
TempAverage Temperature:
Anomaly:
Rank:
Mean:
March - May 1937 Illinois County Average Temperature
County
Value
Anomaly
Rank
130 Years
1901-2000 Mean
Adams County51.0ยฐF-1.0ยฐF4352.0ยฐF
Alexander County55.5ยฐF-1.1ยฐF3756.5ยฐF
Bond County52.6ยฐF-0.9ยฐF4353.5ยฐF
Boone County44.8ยฐF-1.8ยฐF2546.6ยฐF
Brown County50.7ยฐF-1.1ยฐF3951.8ยฐF
Bureau County47.0ยฐF-1.6ยฐF3048.6ยฐF
Calhoun County51.7ยฐF-1.7ยฐF2753.4ยฐF
Carroll County45.7ยฐF-1.4ยฐF2947.1ยฐF
Cass County50.9ยฐF-1.0ยฐF4152.0ยฐF
Champaign County49.0ยฐF-1.3ยฐF3450.3ยฐF
Christian County50.9ยฐF-1.1ยฐF4152.0ยฐF
Clark County50.6ยฐF-1.5ยฐF3152.1ยฐF
Clay County51.8ยฐF-1.6ยฐF3053.4ยฐF
Clinton County53.0ยฐF-1.1ยฐF3854.2ยฐF
Coles County50.5ยฐF-1.1ยฐF3451.7ยฐF
Cook County45.4ยฐF-2.0ยฐF1847.4ยฐF
Crawford County51.3ยฐF-1.7ยฐF2553.0ยฐF
Cumberland County51.0ยฐF-1.3ยฐF3452.3ยฐF
DeKalb County45.4ยฐF-1.8ยฐF2347.2ยฐF
De Witt County49.1ยฐF-1.3ยฐF3350.4ยฐF
Douglas County50.0ยฐF-1.1ยฐF3651.1ยฐF
DuPage County45.3ยฐF-2.1ยฐF1847.4ยฐF
Edgar County49.8ยฐF-1.5ยฐF3451.3ยฐF
Edwards County53.0ยฐF-1.5ยฐF3154.5ยฐF
Effingham County51.3ยฐF-1.4ยฐF3552.7ยฐF
Fayette County51.8ยฐF-1.2ยฐF4053.0ยฐF
Ford County48.0ยฐF-1.5ยฐF3249.5ยฐF
Franklin County53.7ยฐF-1.1ยฐF3554.8ยฐF
Fulton County50.1ยฐF-1.0ยฐF4551.1ยฐF
Gallatin County54.7ยฐF-1.1ยฐF3655.8ยฐF
Greene County51.8ยฐF-1.4ยฐF3353.2ยฐF
Grundy County47.0ยฐF-1.7ยฐF2748.7ยฐF
Hamilton County53.6ยฐF-1.3ยฐF3454.9ยฐF
Hancock County50.1ยฐF-1.2ยฐF3951.3ยฐF
Hardin County54.8ยฐF-1.1ยฐF3055.9ยฐF
Henderson County49.1ยฐF-1.2ยฐF4050.3ยฐF
Henry County47.4ยฐF-1.4ยฐF3848.8ยฐF
Iroquois County48.0ยฐF-1.3ยฐF3349.3ยฐF
Jackson County53.9ยฐF-1.2ยฐF3455.1ยฐF
Jasper County51.4ยฐF-1.6ยฐF2853.0ยฐF
Jefferson County53.3ยฐF-1.2ยฐF3854.4ยฐF
Jersey County52.2ยฐF-1.5ยฐF3453.6ยฐF
Jo Daviess County45.1ยฐF-1.5ยฐF3046.5ยฐF
Johnson County54.4ยฐF-1.2ยฐF3255.6ยฐF
Kane County45.3ยฐF-1.8ยฐF2147.1ยฐF
Kankakee County47.1ยฐF-1.7ยฐF2748.7ยฐF
Kendall County46.4ยฐF-1.8ยฐF2348.2ยฐF
Knox County47.9ยฐF-1.6ยฐF3249.5ยฐF
Lake County44.2ยฐF-1.8ยฐF2346.0ยฐF
LaSalle County46.9ยฐF-1.7ยฐF2548.6ยฐF
Lawrence County52.4ยฐF-1.5ยฐF3153.9ยฐF
Lee County46.3ยฐF-1.5ยฐF3447.7ยฐF
Livingston County47.5ยฐF-1.6ยฐF2949.1ยฐF
Logan County50.1ยฐF-1.1ยฐF3851.2ยฐF
McDonough County49.7ยฐF-1.2ยฐF4150.8ยฐF
McHenry County44.5ยฐF-1.7ยฐF2646.1ยฐF
McLean County48.0ยฐF-1.6ยฐF2949.6ยฐF
Macon County50.2ยฐF-1.0ยฐF4251.2ยฐF
Macoupin County51.7ยฐF-1.1ยฐF3952.8ยฐF
Madison County52.9ยฐF-1.2ยฐF3554.1ยฐF
Marion County52.3ยฐF-1.4ยฐF3453.7ยฐF
Marshall County47.9ยฐF-1.6ยฐF3249.4ยฐF
Mason County50.9ยฐF-0.8ยฐF4351.7ยฐF
Massac County55.3ยฐF-1.2ยฐF3056.4ยฐF
Menard County50.7ยฐF-1.0ยฐF3951.7ยฐF
Mercer County48.3ยฐF-1.2ยฐF4149.5ยฐF
Monroe County53.6ยฐF-1.4ยฐF3455.0ยฐF
Montgomery County51.6ยฐF-1.0ยฐF4252.6ยฐF
Morgan County50.9ยฐF-1.2ยฐF4052.1ยฐF
Moultrie County50.5ยฐF-1.0ยฐF3951.5ยฐF
Ogle County45.7ยฐF-1.5ยฐF3347.2ยฐF
Peoria County48.7ยฐF-1.3ยฐF3450.0ยฐF
Perry County53.5ยฐF-1.1ยฐF3854.6ยฐF
Piatt County49.5ยฐF-1.1ยฐF3550.6ยฐF
Pike County51.2ยฐF-1.3ยฐF3252.5ยฐF
Pope County54.6ยฐF-1.2ยฐF2955.8ยฐF
Pulaski County55.4ยฐF-1.1ยฐF3556.5ยฐF
Putnam County47.8ยฐF-1.6ยฐF3149.4ยฐF
Randolph County53.5ยฐF-1.3ยฐF3454.8ยฐF
Richland County52.2ยฐF-1.6ยฐF3253.8ยฐF
Rock Island County47.9ยฐF-1.1ยฐF4249.0ยฐF
St. Clair County53.3ยฐF-1.4ยฐF3254.7ยฐF
Saline County54.3ยฐF-1.2ยฐF3355.4ยฐF
Sangamon County50.8ยฐF-1.1ยฐF4051.9ยฐF
Schuyler County50.7ยฐF-1.0ยฐF4551.6ยฐF
Scott County51.2ยฐF-1.3ยฐF3652.5ยฐF
Shelby County50.9ยฐF-1.2ยฐF3752.1ยฐF
Stark County47.5ยฐF-1.6ยฐF3449.1ยฐF
Stephenson County44.7ยฐF-1.6ยฐF2346.4ยฐF
Tazewell County49.3ยฐF-1.1ยฐF3650.5ยฐF
Union County54.4ยฐF-1.2ยฐF3455.6ยฐF
Vermilion County48.8ยฐF-1.6ยฐF2850.4ยฐF
Wabash County53.1ยฐF-1.4ยฐF3454.5ยฐF
Warren County48.4ยฐF-1.4ยฐF3849.7ยฐF
Washington County53.1ยฐF-1.2ยฐF3654.3ยฐF
Wayne County52.7ยฐF-1.5ยฐF3154.2ยฐF
White County54.0ยฐF-1.2ยฐF3555.2ยฐF
Whiteside County46.9ยฐF-1.3ยฐF3648.1ยฐF
Will County46.5ยฐF-1.9ยฐF2048.4ยฐF
Williamson County53.9ยฐF-1.2ยฐF3255.1ยฐF
Winnebago County45.1ยฐF-1.7ยฐF2746.9ยฐF
Woodford County47.9ยฐF-1.5ยฐF3049.4ยฐF

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