Alert archive / Iowa / Frost Advisories
Frost Advisories in Iowa, 2026
19 frost advisories in 2026. 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 2026. Tap one for its archive.
- Frost Advisories
- 19
- Busiest month
- May15 frost advisories
- Busiest day
- May 1, 20264 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 19, 2:13 AM CDT | Frost Advisory | DMX | Appanoose, Davis, Lucas, Marion, Monroe, Polk and 2 more | 31 hr |
| Apr 30, 12:38 PM CDT | Frost Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 20 hr |
| Apr 30, 1:25 PM CDT | Frost Advisory | ARX | Allamakee | 19 hr |
| Apr 30, 1:36 PM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 18 hr |
| May 1, 2:16 AM CDT | Frost Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 13 more | 30 hr |
| May 1, 2:25 AM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 11 hr |
| May 1, 2:34 AM CDT | Frost Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 29 hr |
| May 1, 12:36 PM CDT | Frost Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 19 hr |
| May 5, 1:08 PM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 19 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, 1:31 PM CDT | Frost Advisory | DMX | Bremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 7 more | 18 hr |
| May 6, 1:09 PM CDT | Frost Advisory | ARX | Allamakee, Clayton, Fayette, Winneshiek | 19 hr |
| May 6, 1:17 PM CDT | Frost Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 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 10, 11:57 AM CDT | Frost Advisory | DVN | Buchanan, Delaware, Dubuque | 19 hr |
| May 10, 12:00 PM CDT | Frost Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 20 hr |
| May 10, 1:08 PM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 19 hr |
| May 19, 2:43 AM CDT | Frost Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 29 hr |
| May 19, 11:31 AM CDT | Frost Advisory | OAX | Monona | 20 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County5
- Buena Vista County4
- Cherokee County4
- Clay County4
- Dickinson County4
- Lyon County4
- O'Brien County4
- Osceola County4
- Sioux County4
- Clayton County4
- Fayette County4
- Winneshiek County4
- Plymouth County3
- Buchanan County3
- Delaware County3
- Dubuque County3
- Chickasaw County3
- Floyd County3
- Howard County3
- Mitchell County3
- Bremer County3
- Butler County3
- Cerro Gordo County3
- Emmet County3
- Franklin County3
- Hancock County3
- Humboldt County3
- Kossuth County3
- Palo Alto County3
- Pocahontas County3
- Winnebago County3
- Worth County3
- Wright County3
- Appanoose County2
- Davis County2
- Lucas County2
- Marion County2
- Monroe County2
- Polk County2
- Warren County2
57 more counties
- Wayne County2
- Fremont County2
- Harrison County2
- Mills County2
- Monona County2
- Montgomery County2
- Page County2
- Pottawattamie County2
- Shelby County2
- Ida County2
- Woodbury County2
- Benton County2
- Cedar County2
- Clinton County2
- Iowa County2
- Jackson County2
- Johnson County2
- Jones County2
- Linn County2
- Muscatine County2
- Scott County2
- Black Hawk County2
- Henry County1
- Jefferson County1
- Keokuk County1
- Louisa County1
- Van Buren County1
- Washington County1
- Adair County1
- Adams County1
- Audubon County1
- Boone County1
- Calhoun County1
- Carroll County1
- Cass County1
- Clarke County1
- Crawford County1
- Dallas County1
- Decatur County1
- Greene County1
- Grundy County1
- Guthrie County1
- Hamilton County1
- Hardin County1
- Jasper County1
- Madison County1
- Mahaska County1
- Marshall County1
- Poweshiek County1
- Ringgold County1
- Sac County1
- Story County1
- Tama County1
- Taylor County1
- Union County1
- Wapello County1
- Webster County1
The busiest days
Days with the most alerts issued, by UTC date.
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. Warning verification from the Mesonet's Cow. Rebuilt daily.