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.
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.
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.
Adair | Adams | Allamakee | Appanoose | Audubon | Benton | Black Hawk | Boone | Bremer | Buchanan
Adair 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-Sep | 7-Oct | 23-Oct | 11-Apr | 25-Apr | 10-May |
Adams 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-Sep | 8-Oct | 25-Oct | 11-Apr | 24-Apr | 8-May |
Allamakee 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-Sep | 7-Oct | 21-Oct | 9-Apr | 26-Apr | 11-May |
Appanoose 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) |
|---|---|---|---|---|---|
| 30-Sep | 14-Oct | 28-Oct | 5-Apr | 17-Apr | 3-May |
Audubon 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-Sep | 3-Oct | 15-Oct | 13-Apr | 27-Apr | 11-May |
Benton 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-Sep | 5-Oct | 17-Oct | 13-Apr | 25-Apr | 8-May |
Black Hawk 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-Sep | 5-Oct | 18-Oct | 14-Apr | 28-Apr | 11-May |
Boone 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-Sep | 6-Oct | 20-Oct | 13-Apr | 26-Apr | 8-May |
Bremer 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-Sep | 5-Oct | 19-Oct | 13-Apr | 28-Apr | 11-May |
Buchanan 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) |
|---|---|---|---|---|---|
| 20-Sep | 3-Oct | 14-Oct | 16-Apr | 29-Apr | 14-May |