Frost dates in Platte County, Wyoming
The average last spring frost in Platte County falls May 7 to May 25 and the average first fall frost Sep 15 to Oct 6, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a. Places: Chugwater, Glendo, Guernsey, Hartville, Slater. 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 |
|---|---|---|---|---|
| 82201 | Slater | May 19 | Sep 22 | 5a |
| 82210 | Chugwater | May 18 | Sep 24 | 5a |
| 82213 | Glendo | May 25 | Sep 15 | 5a |
| 82214 | Guernsey | May 7 | Oct 6 | 5a |
| 82215 | Hartville | May 25 | Sep 15 | 5a |
Nearby counties
Goshen County Converse County Niobrara County Laramie County Albany County Natrona County
All Wyoming counties · Download Wyoming frost dates (CSV)
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