Frost dates in Stephenson County, Illinois
The average last spring frost in Stephenson County falls Apr 26 to Apr 29 and the average first fall frost Oct 9 to Oct 14, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a to 5b. Places: Cedarville, Dakota, Freeport, German Valley, Lake Summerset, Lena. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 61013 | Cedarville | Apr 26 | Oct 13 | 5a |
| 61018 | Dakota | Apr 26 | Oct 13 | 5a |
| 61019 | Lake Summerset | Apr 29 | Oct 12 | 5a |
| 61027 | Apr 26 | Oct 13 | 5a | |
| 61032 | Freeport | Apr 26 | Oct 13 | 5a |
| 61039 | German Valley | Apr 26 | Oct 13 | 5b |
| 61044 | Apr 27 | Oct 9 | 5a | |
| 61048 | Lena | Apr 27 | Oct 9 | 5a |
| 61050 | Apr 27 | Oct 14 | 5a | |
| 61060 | Orangeville | Apr 27 | Oct 14 | 5a |
| 61062 | Pearl City | Apr 26 | Oct 13 | 5a |
| 61067 | Ridott | Apr 26 | Oct 13 | 5b |
| 61070 | Rock City | Apr 26 | Oct 13 | 5a |
| 61089 | Winslow | Apr 27 | Oct 9 | 5a |
Nearby counties
Carroll County Jo Daviess County Winnebago County Ogle County Boone County Whiteside County
All Illinois counties · Download Illinois frost dates (CSV)
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