Frost and Freeze Dates in Iowa - Buena Vista to Clarke

Below is the likelihood of experiencing 32°F on or before the given date in fall and on or after the given date in spring.

Oak with frost on leavesEarly = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

This information is based on weather data collected from 1950-2021 provided by the Midwestern Regional Climate Center (MRCC).  Visit that website to get more detailed information and statistics.



Buena Vista |  Butler  |  Calhoun  |  Carroll  |  Cass  |  Cedar  |  Cerro Gordo  |  Cherokee  |  Chickasaw  |  Clarke



Buena Vista County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
23-Sep6-Oct23-Oct12-Apr28-Apr11-May

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Butler County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
27-Sep7-Oct22-Oct13-Apr27-Apr10-May

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Calhoun County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
27-Sep7-Oct20-Oct13-Apr26-Apr8-May

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Carroll County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
21-Sep3-Oct19-Oct13-Apr27-Apr9-May

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Cass County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
21-Sep5-Oct18-Oct11-Apr26-Apr11-May

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Cedar County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
24-Sep9-Oct22-Oct9-Apr23-Apr6-May

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Cerro Gordo County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
22-Sep5-Oct19-Oct15-Apr29-Apr11-May

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Cherokee County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
19-Sep2-Oct15-Oct16-Apr1-May14-May

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Chickasaw County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
22-Sep5-Oct18-Oct16-Apr29-Apr11-May

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Clarke County

Early = only 10% of all freeze dates occurred before this day.
Average = the average freeze date for this location.
Late = only 10% of all freeze dates occurred after this day.

Early First Fall Freeze (32°F)Average First Fall Freeze (32°F)Late First Fall Freeze (32°F)Early Last Spring Freeze Date (32°F)Average Last Spring Freeze Date (32°F)Late Last Spring Freeze Date (32°F)
26-Sep10-Oct25-Oct9-Apr23-Apr8-May

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