Frost dates in Niobrara County, Wyoming
The average last spring frost in Niobrara County falls May 14 to May 23 and the average first fall frost Sep 20 to Oct 1, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Lance Creek, Lusk, Manville, Van Tassell. 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 |
|---|---|---|---|---|
| 82222 | Lance Creek | May 17 | Sep 25 | 4b |
| 82225 | Lusk | May 14 | Oct 1 | 5a |
| 82227 | Manville | May 23 | Sep 20 | 5a |
| 82242 | Van Tassell | May 17 | Sep 28 | 5a |
Nearby counties
Converse County Platte County Goshen County Weston County Natrona County Laramie County
All Wyoming counties · Download Wyoming frost dates (CSV)
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