Frost dates in Mason County, Michigan
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The average last spring frost in Mason County falls May 14 to May 17 and the average first fall frost Oct 7 to Oct 12, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Custer, Fountain, Free Soil, Ludington, Scottville. 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 |
|---|---|---|---|---|
| 49405 | Custer | May 17 | Oct 7 | 6a |
| 49410 | Fountain | May 14 | Oct 12 | 6a |
| 49411 | Free Soil | May 14 | Oct 12 | 6a |
| 49431 | Ludington | May 17 | Oct 7 | 6b |
| 49454 | Scottville | May 17 | Oct 7 | 6a |
| 49458 | May 17 | Oct 7 | 6a |
Nearby counties
Lake County Oceana County Manistee County Newaygo County Wexford County Osceola County
All Michigan counties · Download Michigan frost dates (CSV)
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