illinois · Frost dates
illinois frost dates, county by county.
Browse every county in illinois for first-frost and last-frost probability, sourced from NOAA's 1991-2020 Climate Normals.
Adams County
Last spring: 04-04 · First fall: 11-01
Alexander County
Last spring: 03-26 · First fall: 11-04
Bond County
Last spring: 03-28 · First fall: 11-08
Boone County
Last spring: 04-18 · First fall: 10-25
Brown County
Last spring: 04-06 · First fall: 10-27
Bureau County
Last spring: 04-12 · First fall: 10-27
Calhoun County
Last spring: 04-06 · First fall: 10-29
Carroll County
Last spring: 04-23 · First fall: 10-16
Cass County
Last spring: 04-07 · First fall: 10-27
Champaign County
Last spring: 04-04 · First fall: 11-02
Christian County
Last spring: 04-01 · First fall: 10-31
Clark County
Last spring: 04-03 · First fall: 10-31
Clay County
Last spring: 03-31 · First fall: 11-03
Clinton County
Last spring: 03-28 · First fall: 11-08
Coles County
Last spring: 04-03 · First fall: 11-02
Cook County
Last spring: 04-01 · First fall: 11-15
Crawford County
Last spring: 04-02 · First fall: 10-31
Cumberland County
Last spring: 04-03 · First fall: 10-31
De Witt County
Last spring: 04-07 · First fall: 10-26
DeKalb County
Last spring: 04-13 · First fall: 10-28
Douglas County
Last spring: 04-03 · First fall: 10-31
DuPage County
Last spring: 04-16 · First fall: 10-26
Edgar County
Last spring: 04-09 · First fall: 10-30
Edwards County
Last spring: 03-25 · First fall: 11-06
Effingham County
Last spring: 04-02 · First fall: 11-01
Fayette County
Last spring: 03-27 · First fall: 11-04
Ford County
Last spring: 04-13 · First fall: 10-24
Franklin County
Last spring: 03-25 · First fall: 11-07
Fulton County
Last spring: 04-05 · First fall: 10-29
Gallatin County
Last spring: 03-24 · First fall: 11-08
Greene County
Last spring: 04-02 · First fall: 11-01
Grundy County
Last spring: 04-08 · First fall: 11-01
Hamilton County
Last spring: 04-01 · First fall: 10-30
Hancock County
Last spring: 04-03 · First fall: 11-01
Hardin County
Last spring: 04-06 · First fall: 10-29
Henderson County
Last spring: 03-31 · First fall: 11-07
Henry County
Last spring: 04-09 · First fall: 10-30
Iroquois County
Last spring: 04-12 · First fall: 10-26
Jackson County
Last spring: 03-30 · First fall: 11-01
Jasper County
Last spring: 04-01 · First fall: 11-01
Jefferson County
Last spring: 04-01 · First fall: 11-01
Jersey County
Last spring: 04-04 · First fall: 10-30
Jo Daviess County
Last spring: 04-20 · First fall: 10-19
Johnson County
Last spring: 04-02 · First fall: 10-31
Kane County
Last spring: 04-14 · First fall: 10-29
Kankakee County
Last spring: 04-06 · First fall: 11-04
Kendall County
Last spring: 04-18 · First fall: 10-23
Knox County
Last spring: 04-09 · First fall: 10-29
Lake County
Last spring: 04-13 · First fall: 11-01
LaSalle County
Last spring: 04-08 · First fall: 11-01
Lawrence County
Last spring: 04-01 · First fall: 11-03
Lee County
Last spring: 04-16 · First fall: 10-24
Livingston County
Last spring: 04-04 · First fall: 11-03
Logan County
Last spring: 04-07 · First fall: 10-26
Macon County
Last spring: 04-03 · First fall: 11-03
Macoupin County
Last spring: 04-02 · First fall: 11-01
Madison County
Last spring: 03-25 · First fall: 11-16
Marion County
Last spring: 03-30 · First fall: 11-03
Marshall County
Last spring: 04-07 · First fall: 10-28
Mason County
Last spring: 04-05 · First fall: 10-29
Massac County
Last spring: 03-27 · First fall: 11-05
McDonough County
Last spring: 04-07 · First fall: 10-30
McHenry County
Last spring: 04-12 · First fall: 11-01
McLean County
Last spring: 04-14 · First fall: 10-27
Menard County
Last spring: 04-03 · First fall: 11-01
Mercer County
Last spring: 04-11 · First fall: 10-29
Monroe County
Last spring: 03-31 · First fall: 11-05
Montgomery County
Last spring: 04-02 · First fall: 11-02
Morgan County
Last spring: 04-07 · First fall: 10-27
Moultrie County
Last spring: 04-04 · First fall: 11-01
Ogle County
Last spring: 04-19 · First fall: 10-19
Peoria County
Last spring: 04-05 · First fall: 11-02
Perry County
Last spring: 03-27 · First fall: 11-02
Piatt County
Last spring: 04-11 · First fall: 10-23
Pike County
Last spring: 04-04 · First fall: 11-01
Pope County
Last spring: 04-02 · First fall: 10-31
Pulaski County
Last spring: 03-22 · First fall: 11-17
Putnam County
Last spring: 04-06 · First fall: 11-01
Randolph County
Last spring: 04-01 · First fall: 11-01
Richland County
Last spring: 04-03 · First fall: 11-01
Rock Island County
Last spring: 04-12 · First fall: 10-27
Saline County
Last spring: 03-26 · First fall: 11-06
Sangamon County
Last spring: 04-05 · First fall: 11-01
Schuyler County
Last spring: 04-04 · First fall: 11-01
Scott County
Last spring: 04-05 · First fall: 10-29
Shelby County
Last spring: 03-31 · First fall: 11-03
St. Clair County
Last spring: 03-31 · First fall: 10-30
Stark County
Last spring: 04-13 · First fall: 10-28
Stephenson County
Last spring: 04-14 · First fall: 10-24
Tazewell County
Last spring: 04-05 · First fall: 11-02
Union County
Last spring: 03-29 · First fall: 11-08
Vermilion County
Last spring: 04-08 · First fall: 10-31
Wabash County
Last spring: 03-22 · First fall: 11-11
Warren County
Last spring: 04-11 · First fall: 10-25
Washington County
Last spring: 03-30 · First fall: 11-04
Wayne County
Last spring: 03-27 · First fall: 11-06
White County
Last spring: 04-03 · First fall: 10-28
Whiteside County
Last spring: 04-15 · First fall: 10-23
Will County
Last spring: 04-05 · First fall: 11-04
Williamson County
Last spring: 03-29 · First fall: 11-01
Winnebago County
Last spring: 04-13 · First fall: 10-28
Woodford County
Last spring: 04-09 · First fall: 10-27
Bield Farm earns its predictions.
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