# Frost dates for Port Arthur, TX (77640)

**Do this (Safe, 2026-11-02):** 13 days until first frost (Nov 15). Protect tender plants.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Mar 13 | Nov 15 | 247 |
| Median | Feb 14 | Dec 7 | 296 |
| Bold (9 in 10 years later) | Jan 17 | Jan 9 | -8 |

Frost = 32°F. Station: Port Arthur SE Tx AP, TX, 8 mi away.

## Next nights (NWS overnight low)

- 2026-11-02: 76°F — Go (tonight)
- 2026-11-03: 67°F — Go
- 2026-11-04: 65°F — Go
- 2026-11-05: 64°F — Go
- 2026-11-06: 61°F — Go
- 2026-11-07: 60°F — Go
- 2026-11-08: 56°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 Port Arthur SE Tx AP, TX (8 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/tx/port-arthur · JSON: https://frostdatecalculator.com/p/tx/port-arthur?format=json