Alert archive / Illinois / Frost Advisories
Frost Advisories in Illinois, 2024
20 frost advisories in 2024. 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 2024. Tap one for its archive.
- Frost Advisories
- 20
- Busiest month
- April13 frost advisories
- Busiest day
- April 21, 20246 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 5, 2:14 AM CDT | Frost Advisory | PAH | Alexander, Johnson, Massac, Pope, Pulaski, Union | 30 hr |
| Apr 5, 2:33 AM CDT | Frost Advisory | LSX | Monroe, Randolph, Saint Clair | 29 hr |
| Apr 20, 2:24 PM CDT | Frost Advisory | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more | 18 hr |
| Apr 20, 2:25 PM CDT | Frost Advisory | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 11 more | 18 hr |
| Apr 20, 8:47 PM CDT | Frost Advisory | LOT | Cook, DuPage, Ford, Iroquois, Kankakee, Lake and 1 more | 11 hr |
| Apr 21, 2:24 AM CDT | Frost Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 30 hr |
| Apr 21, 2:32 AM CDT | Frost Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 29 hr |
| Apr 21, 1:54 PM CDT | Frost Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 18 hr |
| Apr 21, 2:15 PM CDT | Frost Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 18 hr |
| Apr 21, 2:29 PM CDT | Frost Advisory | LOT | Boone, DeKalb, Ford, Grundy, Iroquois, Kane and 9 more | 18 hr |
| Apr 24, 1:47 PM CDT | Frost Advisory | DVN | Bureau, Putnam | 18 hr |
| Apr 24, 1:55 PM CDT | Frost Advisory | ILX | Champaign, DeWitt, McLean, Marshall, Piatt, Vermilion and 1 more | 16 hr |
| Apr 24, 2:58 PM CDT | Frost Advisory | LOT | Cook, Ford, Grundy, Iroquois, Kankakee, Kendall and 3 more | 17 hr |
| Oct 14, 2:51 AM CDT | Frost Advisory | DVN | Rock Island | 29 hr |
| Oct 15, 1:47 AM CDT | Frost Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 30 hr |
| Oct 15, 2:31 AM CDT | Frost Advisory | ILX | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more | 29 hr |
| Oct 15, 2:52 AM CDT | Frost Advisory | LSX | Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more | 30 hr |
| Oct 15, 3:29 AM CDT | Frost Advisory | LOT | Cook, DuPage, Ford, Iroquois, Kankakee, Lake and 1 more | 30 hr |
| Oct 16, 9:53 AM CDT | Frost Advisory | PAH | Alexander, Hardin, Massac, Pope, Pulaski | 3 hr |
| Oct 16, 1:54 PM CDT | Frost Advisory | LOT | Cook, Lake | 19 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County4
- Massac County4
- Pope County4
- Pulaski County4
- Champaign County4
- Piatt County4
- Vermilion County4
- Cook County4
- Ford County4
- Iroquois County4
- Kankakee County4
- Will County4
- Johnson County3
- Union County3
- Monroe County3
- Randolph County3
- Saint Clair County3
- Coles County3
- DeWitt County3
- Douglas County3
- Edgar County3
- Moultrie County3
- Shelby County3
- Lake County3
- Hardin County3
- Adams County2
- Brown County2
- Calhoun County2
- Greene County2
- Jersey County2
- Macoupin County2
- Montgomery County2
- Pike County2
- Cass County2
- Christian County2
- Logan County2
- Macon County2
- Menard County2
- Morgan County2
- Sangamon County2
62 more counties
- Scott County2
- DuPage County2
- Edwards County2
- Franklin County2
- Gallatin County2
- Hamilton County2
- Jackson County2
- Jefferson County2
- Perry County2
- Saline County2
- Wabash County2
- Wayne County2
- White County2
- Williamson County2
- Clark County2
- Clay County2
- Crawford County2
- Cumberland County2
- Effingham County2
- Jasper County2
- Lawrence County2
- McLean County2
- Marshall County2
- Richland County2
- Woodford County2
- Bond County2
- Clinton County2
- Fayette County2
- Madison County2
- Marion County2
- Washington County2
- Bureau County2
- Putnam County2
- Rock Island County2
- Grundy County2
- Kendall County2
- LaSalle County2
- Livingston County2
- Fulton County1
- Knox County1
- Mason County1
- Peoria County1
- Schuyler County1
- Stark County1
- Tazewell County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- McDonough County1
- Mercer County1
- Stephenson County1
- Warren County1
- Whiteside County1
- Boone County1
- DeKalb County1
- Kane County1
- Lee County1
- McHenry County1
- Ogle County1
- Winnebago County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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. Warning verification from the Mesonet's Cow. Rebuilt daily.