Frost dates in Jefferson County, Missouri
The average last spring frost in Jefferson County falls Apr 4 to Apr 12 and the average first fall frost Oct 23 to Oct 29, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 7a. Places: Arnold, Barnhart, Crystal City, De Soto, Fenton, Festus. 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 |
|---|---|---|---|---|
| 63010 | Arnold | Apr 9 | Oct 26 | 7a |
| 63012 | Barnhart | Apr 9 | Oct 26 | 6b |
| 63016 | LaBarque Creek | Apr 9 | Oct 26 | 6b |
| 63019 | Crystal City | Apr 9 | Oct 26 | 7a |
| 63020 | De Soto | Apr 9 | Oct 26 | 6b |
| 63023 | Apr 9 | Oct 26 | 6b | |
| 63026 | Fenton | Apr 4 | Oct 29 | 7a |
| 63028 | Festus | Apr 9 | Oct 26 | 6b |
| 63047 | Apr 9 | Oct 26 | 7a | |
| 63048 | Herculaneum | Apr 9 | Oct 26 | 7a |
| 63049 | High Ridge | Apr 12 | Oct 23 | 7a |
| 63050 | Hillsboro | Apr 9 | Oct 26 | 6b |
| 63051 | LaBarque Creek | Apr 9 | Oct 26 | 6b |
| 63052 | Imperial | Apr 9 | Oct 26 | 7a |
| 63053 | Kimmswick | Apr 9 | Oct 26 | 7a |
| 63070 | Pevely | Apr 9 | Oct 26 | 7a |
Nearby counties
St. Louis County St. Louis city Franklin County Washington County St. Francois County Ste. Genevieve County
All Missouri counties · Download Missouri frost dates (CSV)
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