Frost dates for Cheyenne, Wyoming
In a typical year, Cheyenne’s last spring frost lands around May 14 and the first fall frost around Oct 1, a growing season of about 140 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 5b.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | May 3 | Sep 17 |
| 50 percent | May 14 | Oct 1 |
| 90 percent | May 28 | Oct 14 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Cheyenne is typically around 68°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Cheyenne
- Bok choy (Toy Choi)
- Arugula (Astro)
- Mustard greens (Red Giant)
- Tatsoi (Tatsoi)
- Dill (Bouquet)
- Cilantro (Santo)
- Sweet alyssum (Snow Crystals)
- Mâche (Vit)
Timing comes from the same temperature engine the app uses, run against Cheyenne’s normals for today.
Nearby cities
- Fort Collins, CO (around May 2 to Oct 7)
- Laramie, WY (around Jun 7 to Sep 4)
- Thornton, CO (around May 2 to Oct 11)
- Westminster, CO (around May 2 to Oct 11)
- Arvada, CO (around May 5 to Oct 5)
Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.
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