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)
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.