Frost dates in Decatur County, Iowa
The average last spring frost in Decatur County falls Apr 16 to Apr 30 and the average first fall frost Oct 8 to Oct 21, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Davis City, Decatur City, Garden Grove, Grand River, Lamoni, Leon. 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 |
|---|---|---|---|---|
| 50065 | Davis City | Apr 16 | Oct 21 | 5b |
| 50067 | Decatur City | Apr 16 | Oct 21 | 5b |
| 50103 | Garden Grove | Apr 30 | Oct 8 | 5b |
| 50108 | Grand River | Apr 23 | Oct 17 | 5b |
| 50140 | Lamoni | Apr 17 | Oct 21 | 5b |
| 50144 | Leon | Apr 30 | Oct 8 | 5b |
| 50262 | Van Wert | Apr 29 | Oct 9 | 5b |
Nearby counties
Clarke County Ringgold County Wayne County Union County Lucas County Madison County
All Iowa counties · Download Iowa frost dates (CSV)
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