# Frost dates for Cheyenne, WY (82001)

**Do this (Safe, 2026-11-02):** Frost season started Sep 17. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 28 | Sep 17 | 112 |
| Median | May 14 | Oct 1 | 140 |
| Bold (9 in 10 years later) | May 3 | Oct 14 | 164 |

Frost = 32°F. Station: Cheyenne WFO, WY, 2 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 40°F — Wait (tonight)
- 2026-11-02: 31°F — Cover
- 2026-11-03: 28°F — Cover
- 2026-11-04: 30°F — Cover
- 2026-11-05: 30°F — Cover
- 2026-11-06: 32°F — Cover
- 2026-11-07: 28°F — Cover

Go above 40°F · Wait 37–40°F · Cover 36°F or less · Freeze 28°F or less.

Source: Frost dates: NOAA NCEI U.S. Climate Normals 1991–2020, station Cheyenne WFO, WY (2 mi, 72 ft higher than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/s/wyoming · JSON: https://frostdatecalculator.com/s/wyoming?format=json