Frost Advisories in Iowa
291 frost advisories since 1986. 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 since 1986. Tap one for its archive.
- Frost Advisories
- 291
- Busiest year
- 202130 frost advisories
- Average year
- 13over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dubuque County57
- Jones County55
- Jackson County55
- Delaware County54
- Clinton County53
- Buchanan County49
- Linn County49
- Scott County49
- Cedar County48
- Benton County46
- Muscatine County46
- Clayton County44
- Allamakee County43
- Johnson County41
- Iowa County40
- Louisa County40
- Clay County38
- Dickinson County38
- Adams County38
- Lyon County37
- Harrison County36
- Osceola County36
- Adair County36
- Sioux County36
- Pocahontas County36
- Monona County35
- Washington County35
- Audubon County35
- Cass County35
- O'Brien County35
- Crawford County35
- Sac County35
- Des Moines County34
- Henry County34
- Keokuk County34
- Pottawattamie County34
- Fayette County34
- Guthrie County34
- Jefferson County33
- Montgomery County33
59 more counties
- Page County33
- Shelby County33
- Cherokee County33
- Franklin County33
- Plymouth County33
- Taylor County33
- Calhoun County33
- Carroll County33
- Emmet County33
- Fremont County32
- Buena Vista County32
- Hardin County32
- Marshall County32
- Humboldt County32
- Palo Alto County32
- Van Buren County31
- Black Hawk County31
- Cerro Gordo County31
- Woodbury County31
- Worth County31
- Greene County31
- Kossuth County31
- Winneshiek County31
- Wright County31
- Mills County30
- Bremer County30
- Madison County30
- Union County30
- Warren County30
- Chickasaw County30
- Floyd County30
- Hancock County30
- Howard County30
- Webster County30
- Winnebago County30
- Butler County29
- Dallas County29
- Ida County29
- Tama County29
- Mitchell County29
- Lee County28
- Grundy County28
- Jasper County28
- Marion County28
- Boone County28
- Hamilton County28
- Polk County27
- Poweshiek County27
- Ringgold County27
- Clarke County26
- Mahaska County25
- Story County25
- Appanoose County25
- Monroe County25
- Decatur County25
- Lucas County24
- Wayne County24
- Davis County23
- Wapello County22
The latest frost advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 11:31 AM CDT | Frost Advisory | OAX | Monona | 20 hr |
| May 19, 2:43 AM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 29 hr |
| May 10, 1:08 PM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 19 hr |
| May 10, 12:00 PM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 20 hr |
| May 10, 11:57 AM CDT | Frost Advisory | DVN | Buchanan, Delaware, Dubuque | 19 hr |
| May 10, 11:57 AM CDT | Frost Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 8 more | 20 hr |
| May 6, 1:17 PM CDT | Frost Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 19 hr |
| May 6, 1:09 PM CDT | Frost Advisory | ARX | Allamakee, Clayton, Fayette, Winneshiek | 19 hr |
| May 5, 1:31 PM CDT | Frost Advisory | DMX | Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 7 more | 18 hr |
| May 5, 1:19 PM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 18 hr |
| May 5, 1:08 PM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 19 hr |
| May 1, 12:36 PM CDT | Frost Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 19 hr |
Nearby
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.