Frost dates in Kittitas County, Washington
The average last spring frost in Kittitas County falls Mar 24 to May 14 and the average first fall frost Sep 25 to Nov 4, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 7a. Places: Cle Elum, Easton, Ellensburg, Kittitas, Ronald, Roslyn. 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 |
|---|---|---|---|---|
| 98068 | Snoqualmie Pass | May 14 | Oct 17 | 7a |
| 98922 | Cle Elum | May 13 | Sep 25 | 7a |
| 98925 | Easton | May 14 | Oct 17 | 7a |
| 98926 | Ellensburg | May 8 | Oct 2 | 7a |
| 98934 | Kittitas | May 8 | Oct 2 | 6b |
| 98940 | Ronald | May 9 | Oct 6 | 7a |
| 98941 | Roslyn | May 13 | Sep 25 | 7a |
| 98943 | South Cle Elum | May 13 | Sep 25 | 7a |
| 98946 | Thorp | Apr 28 | Oct 7 | 7a |
| 98950 | Vantage | Mar 24 | Nov 4 | 7a |
Nearby counties
Chelan County Yakima County Douglas County Grant County King County Pierce County
All Washington counties · Download Washington frost dates (CSV)
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