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.
Jefferson | Johnson | Jones | Keokuk | Kossuth | Lee | Linn | Louisa | Lucas | Lyon
Jefferson 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 | 13-Oct | 28-Oct | 5-Apr | 17-Apr | 1-May |
Johnson 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-Sep | 9-Oct | 22-Oct | 9-Apr | 22-Apr | 6-May |
Jones 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 | 16-Apr | 29-Apr | 13-May |
Keokuk 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 | 13-Oct | 28-Oct | 7-Apr | 19-Apr | 3-May |
Kossuth 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) |
|---|---|---|---|---|---|
| 25-Sep | 6-Oct | 18-Oct | 14-Apr | 28-Apr | 11-May |
Lee 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) |
|---|---|---|---|---|---|
| 6-Oct | 19-Oct | 2-Nov | 4-Apr | 13-Apr | 25-Apr |
Linn 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) |
|---|---|---|---|---|---|
| 25-Sep | 6-Oct | 18-Oct | 14-Apr | 26-Apr | 9-May |
Louisa 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) |
|---|---|---|---|---|---|
| 1-Oct | 14-Oct | 28-Oct | 5-Apr | 17-Apr | 2-May |
Lucas 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-Sep | 8-Oct | 21-Oct | 10-Apr | 24-Apr | 7-May |
Lyon 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-Sep | 30-Sep | 14-Oct | 18-Apr | 1-May | 14-May |