# Frost dates for Norman, OK (73071)

**Do this (Safe, 2026-11-02):** Frost season started Oct 21. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Apr 18 | Oct 21 | 186 |
| Median | Apr 3 | Nov 3 | 214 |
| Bold (9 in 10 years later) | Mar 19 | Nov 17 | 243 |

Frost = 32°F. Station: Norman 3SSE, OK, 7 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 63°F — Go (tonight)
- 2026-11-02: 55°F — Go
- 2026-11-03: 48°F — Go
- 2026-11-04: 50°F — Go
- 2026-11-05: 47°F — Go
- 2026-11-06: 45°F — Go
- 2026-11-07: 46°F — Go

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 Norman 3SSE, OK (7 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/ok/norman · JSON: https://frostdatecalculator.com/p/ok/norman?format=json