# Frost dates for Riverton, UT (84065)

**Do this (Safe, 2026-11-02):** Frost season started Oct 7. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 6 | Oct 7 | 154 |
| Median | Apr 18 | Oct 22 | 187 |
| Bold (9 in 10 years later) | Mar 31 | Nov 5 | 219 |

Frost = 32°F. Station: Draper-point Of Mtn, UT, 4 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 41°F — Go (tonight)
- 2026-11-02: 33°F — Cover
- 2026-11-03: 39°F — Wait
- 2026-11-04: 35°F — Cover
- 2026-11-05: 36°F — Cover
- 2026-11-06: 36°F — Cover
- 2026-11-07: 36°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 Draper-point Of Mtn, UT (4 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/ut/riverton · JSON: https://frostdatecalculator.com/p/ut/riverton?format=json