Last frost date in Port Arthur, Texas

February 14

Average last frost in spring. In an early year (1 in 10) it's over by January 17; in a late year (1 in 10) it comes after March 13.

December 7

Average first frost in fall. 1 year in 10 it comes by November 15.

A 32°F night happens here about 10 years in 10; in those years these are the usual dates.

Source: NOAA U.S. Climate Normals 1991–2020, station Port Arthur SE Tx AP (USW00012917), 8.3 miles from Port Arthur, elevation 16 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.

This station is also the nearest one for Groves, Nederland and Port Neches, so their frost dates are the same as Port Arthur's.

What to plant now

Frost dates for Port Arthur, Texas
Early yearAverageLate year
Last frost in springJan 17Feb 14Mar 13
First frost in fallNov 15Dec 7Jan 9

Frost-free days in an average year: 301

Light frost, frost and hard freeze in Port Arthur
Chance in a yearAverage last in springAverage first in fall
Light frost (36°F)Every yearMar 4Nov 23
Frost (32°F)10 years in 10Feb 14Dec 7
Hard freeze (28°F)8 years in 10Jan 28Jan 1

Nights at 32°F or colder in an average year: 8.4

What to plant now in Port Arthur

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.

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