Alert archive / Illinois / Frost Advisories

Frost Advisories in Illinois, 2021

26 frost advisories in 2021. 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 2021. Tap one for its archive.

Frost Advisories
26
Busiest month
May12 frost advisories
Busiest day
April 14, 20213 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.

IssuedProductOfficeCountiesLasted
Apr 2, 2:15 PM CDTFrost AdvisoryPAHAlexander, Franklin, Jackson, Jefferson, Johnson, Massac and 4 more19 hr
Apr 2, 2:44 PM CDTFrost AdvisoryLSXRandolph18 hr
Apr 13, 2:47 PM CDTFrost AdvisoryDVNBureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more17 hr
Apr 13, 2:59 PM CDTFrost AdvisoryILXFulton, Knox, Marshall, Peoria, Stark17 hr
Apr 14, 2:32 PM CDTFrost AdvisoryLSXAdams, Brown, Calhoun, Greene, Pike17 hr
Apr 14, 2:36 PM CDTFrost AdvisoryILXCass, Champaign, DeWitt, Fulton, Knox, Logan and 15 more17 hr
Apr 14, 2:45 PM CDTFrost AdvisoryDVNHancock, Henderson, McDonough, Mercer, Warren17 hr
Apr 19, 11:47 PM CDTFrost AdvisoryDVNCarroll, Jo Daviess, Stephenson8 hr
Apr 21, 4:00 AM CDTFrost AdvisoryPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more28 hr
Apr 24, 2:25 PM CDTFrost AdvisoryDVNCarroll, Jo Daviess, Stephenson, Whiteside18 hr
May 7, 1:48 PM CDTFrost AdvisoryDVNBureau, Carroll, Henry, Jo Daviess, Putnam, Stephenson and 1 more18 hr
May 7, 2:07 PM CDTFrost AdvisoryLOTBoone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more18 hr
May 7, 2:08 PM CDTFrost AdvisoryILXChampaign, DeWitt, Knox, McLean, Marshall, Peoria and 5 more18 hr
May 9, 2:18 PM CDTFrost AdvisoryLOTFord, Grundy, Iroquois, Kankakee, LaSalle, Livingston and 1 more18 hr
May 9, 2:48 PM CDTFrost AdvisoryILXCass, Champaign, Christian, Clark, Coles, Crawford and 22 more16 hr
May 10, 2:23 PM CDTFrost AdvisoryLOTBoone, Cook, DeKalb, DuPage, Kane, Lake and 3 more18 hr
May 10, 2:28 PM CDTFrost AdvisoryDVNCarroll, Jo Daviess, Stephenson18 hr
May 11, 2:11 PM CDTFrost AdvisoryLOTBoone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more17 hr
May 11, 2:26 PM CDTFrost AdvisoryDVNBureau, Carroll, Henderson, Henry, Jo Daviess, McDonough and 6 more17 hr
May 11, 2:34 PM CDTFrost AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more16 hr
May 12, 2:41 PM CDTFrost AdvisoryLOTDeKalb, Kane, Kankakee, Kendall, Lake, McHenry and 1 more16 hr
May 28, 3:30 AM CDTFrost AdvisoryDVNCarroll, Jo Daviess, Rock Island, Stephenson, Whiteside28 hr
Oct 22, 1:29 PM CDTFrost AdvisoryLOTBoone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more19 hr
Oct 22, 2:22 PM CDTFrost AdvisoryDVNBureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more19 hr
Oct 26, 7:06 PM CDTFrost AdvisoryILXClark, Edgar, Vermilion14 hr
Nov 2, 3:20 PM CDTFrost AdvisoryPAHJohnson, Massac, Pope, Pulaski, Union18 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

51 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. April 14, 20213frost advisories
  2. May 7, 20213frost advisories
  3. May 11, 20213frost advisories
  4. April 2, 20212frost advisories
  5. April 13, 20212frost advisories
  6. May 9, 20212frost advisories
  7. May 10, 20212frost advisories
  8. October 22, 20212frost advisories
  9. April 20, 20211frost advisories
  10. April 21, 20211frost advisories
  11. April 24, 20211frost advisories
  12. May 12, 20211frost advisories

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.