# Frost dates for Tucson, AZ (85756)

**Do this (Safe, 2026-11-03):** 18 days until first frost (Nov 21). Tender plants OK outdoors.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Mar 2 | Nov 21 | 264 |
| Median | Feb 5 | Dec 9 | 307 |
| Bold (9 in 10 years later) | Jan 4 | Jan 3 | -1 |

Frost = 32°F. Station: Tucson Intl AP, AZ, 5 mi away.

## Next nights (NWS overnight low)

- 2026-11-03: 49°F — Go (tonight)
- 2026-11-04: 48°F — Go
- 2026-11-05: 51°F — Go
- 2026-11-06: 50°F — Go
- 2026-11-07: 50°F — Go
- 2026-11-08: 50°F — Go
- 2026-11-09: 52°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 Tucson Intl AP, AZ (5 mi, 105 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/az/tucson · JSON: https://frostdatecalculator.com/p/az/tucson?format=json