Alert archive / Illinois / Frost Advisories
Frost Advisories in Illinois, 2025
16 frost advisories in 2025. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Frost Advisories
- 16
- Busiest month
- October10 frost advisories
- Busiest day
- October 22, 20255 frost advisories
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 12:27 PM CDT | Frost Advisory | PAH | Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more | 20 hr |
| Apr 11, 1:22 PM CDT | Frost Advisory | LSX | Bond, Clinton, Fayette, Macoupin, Madison, Marion and 5 more | 19 hr |
| Apr 11, 1:28 PM CDT | Frost Advisory | ILX | Cass, Christian, DeWitt, Logan, Macon, Mason and 5 more | 20 hr |
| Apr 15, 2:32 AM CDT | Frost Advisory | ILX | Champaign, Christian, Clark, Coles, Crawford, Cumberland and 22 more | 29 hr |
| May 8, 12:50 PM CDT | Frost Advisory | LOT | Boone, DeKalb, Kane, Lake, McHenry, Ogle and 1 more | 18 hr |
| May 8, 12:52 PM CDT | Frost Advisory | DVN | Stephenson | 18 hr |
| Oct 22, 1:51 AM CDT | Frost Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 31 hr |
| Oct 22, 2:26 AM CDT | Frost Advisory | PAH | Edwards, Hamilton, Jefferson, Wabash, Wayne, White | 30 hr |
| Oct 22, 2:29 AM CDT | Frost Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 31 hr |
| Oct 22, 2:41 AM CDT | Frost Advisory | LOT | Boone, DeKalb, Ford, Grundy, Iroquois, Kankakee and 5 more | 30 hr |
| Oct 22, 12:00 PM CDT | Frost Advisory | LSX | Adams, Bond, Brown, Calhoun, Fayette, Greene and 5 more | 21 hr |
| Oct 23, 2:13 AM CDT | Frost Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 30 hr |
| Oct 23, 2:16 AM CDT | Frost Advisory | ILX | Christian, Clay, Effingham, Jasper, Lawrence, Morgan and 4 more | 31 hr |
| Oct 23, 2:58 AM CDT | Frost Advisory | LSX | Adams, Bond, Brown, Clinton, Fayette, Greene and 5 more | 30 hr |
| Oct 23, 3:07 AM CDT | Frost Advisory | LOT | Cook | 29 hr |
| Oct 30, 1:47 PM CDT | Frost Advisory | LSX | Adams, Brown, Pike | 18 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Christian County4
- Sangamon County4
- Edwards County3
- Hamilton County3
- Jefferson County3
- Wabash County3
- Wayne County3
- White County3
- Bond County3
- Fayette County3
- Macoupin County3
- Marion County3
- Montgomery County3
- DeWitt County3
- Logan County3
- Macon County3
- Mason County3
- Menard County3
- Morgan County3
- Scott County3
- Effingham County3
- Jasper County3
- Shelby County3
- Adams County3
- Brown County3
- Pike County3
- Franklin County2
- Gallatin County2
- Hardin County2
- Jackson County2
- Johnson County2
- Massac County2
- Perry County2
- Pope County2
- Saline County2
- Union County2
- Williamson County2
- Clinton County2
- Washington County2
- Cass County2
59 more counties
- Schuyler County2
- Champaign County2
- Clark County2
- Coles County2
- Crawford County2
- Cumberland County2
- Douglas County2
- Edgar County2
- Fulton County2
- Knox County2
- McLean County2
- Marshall County2
- Moultrie County2
- Peoria County2
- Piatt County2
- Stark County2
- Tazewell County2
- Vermilion County2
- Woodford County2
- Boone County2
- DeKalb County2
- Ogle County2
- Winnebago County2
- Stephenson County2
- Clay County2
- Lawrence County2
- Richland County2
- Greene County2
- Madison County1
- Monroe County1
- Randolph County1
- Saint Clair County1
- Kane County1
- Lake County1
- McHenry County1
- Bureau County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- McDonough County1
- Mercer County1
- Putnam County1
- Rock Island County1
- Warren County1
- Whiteside County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kankakee County1
- LaSalle County1
- Lee County1
- Livingston County1
- Calhoun County1
- Jersey County1
- Alexander County1
- Pulaski County1
- Cook County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.