Frost dates in Mason County, Washington
The average last spring frost in Mason County falls Mar 11 to Apr 27 and the average first fall frost Oct 16 to Nov 21, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 8b. Places: Belfair, Grapeview, Hoodsport, Skokomish, Union. 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 |
|---|---|---|---|---|
| 98524 | Grapeview | Mar 11 | Nov 21 | 8b |
| 98528 | Belfair | Mar 29 | Nov 14 | 8b |
| 98546 | Grapeview | Mar 24 | Nov 15 | 8b |
| 98548 | Hoodsport | Mar 24 | Nov 15 | 8b |
| 98555 | Mar 24 | Nov 15 | 8b | |
| 98560 | Mar 24 | Nov 15 | 8b | |
| 98584 | Skokomish | Apr 27 | Oct 16 | 8b |
| 98588 | Mar 24 | Nov 15 | 8b | |
| 98592 | Union | Mar 24 | Nov 15 | 8b |
Nearby counties
Kitsap County Thurston County Pierce County Jefferson County Grays Harbor County King County
All Washington counties · Download Washington frost dates (CSV)
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