# Frost dates for Stillwater, OK (74074)

**Do this (Safe, 2026-11-02):** Frost season started Oct 16. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Apr 21 | Oct 16 | 178 |
| Median | Apr 5 | Oct 30 | 208 |
| Bold (9 in 10 years later) | Mar 21 | Nov 15 | 239 |

Frost = 32°F. Station: Stillwater 2 W, OK, 1 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 61°F — Go (tonight)
- 2026-11-02: 54°F — Go
- 2026-11-03: 46°F — Go
- 2026-11-04: 47°F — Go
- 2026-11-05: 43°F — Go
- 2026-11-06: 42°F — Go
- 2026-11-07: 43°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 Stillwater 2 W, OK (1 mi, 52 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

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