Frost Dates for Galveston, TX

In Galveston, TX, the average last spring frost is around Jan 18 and the average first fall frost around Jan 7, for a growing season of about 365 days. For frost-tender plants, wait until Feb 18, when the chance of frost drops to 10%.

Average last frostJan 1850% chance of frost after this date
Safe to plantFeb 18only a 10% chance of frost after
Average first frostJan 750% chance of frost before this date
Growing season365 daysfrost-free in an average year

Based on NOAA 1991–2020 records from the Galveston Scholes Fld, TX weather station, 9 miles away, elevation 5 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.

Frost probability by date

Chance of a 32°F frost after the spring date, or before the fall date.

ChanceLast spring frostFirst fall frost
10%Feb 18Dec 13
20%Feb 7Dec 21
30%Jan 31Dec 29
40%Jan 26Jan 3
50%Jan 18Jan 7
60%Jan 12Jan 13
70%Jan 7Jan 19
80%Jan 1Jan 29
90%Dec 21Feb 7

Light frost vs. hard freeze

Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.

TemperatureLast in springFirst in fall
Light frost (36°F)Jan 30Dec 26
Frost / freeze (32°F)Jan 18Jan 7
Hard freeze (28°F)Jan 9Jan 8

Planting calendar for Galveston

Start indoors Plant outside Fall planting
JanFebMarAprMayJunJulAugSepOctNovDec
Tomatoes
Indoors Nov 23 – Dec 7
Transplant Jan 25 – Feb 8
Peppers
Indoors Nov 9 – Nov 23
Transplant Feb 1 – Feb 15
Eggplant
Indoors Nov 9 – Nov 23
Transplant Feb 1 – Feb 15
Basil
Indoors Dec 7 – Dec 21
Transplant Jan 25 – Feb 8
Cucumbers
Indoors Dec 21 – Dec 28
Sow or transplant Jan 25 – Feb 8
Zucchini and summer squash
Indoors Dec 21 – Dec 28
Sow or transplant Jan 25 – Feb 8
Pumpkins and winter squash
Sow Jan 25 – Feb 8
Watermelons and melons
Indoors Dec 21 – Dec 28
Sow or transplant Feb 1 – Feb 15
Green beans
Sow Jan 25 – Feb 8
Sweet corn
Sow Jan 25 – Feb 8
Lettuce
Indoors Dec 7 – Dec 21
Sow or transplant Dec 21 – Jan 4
Fall sowing Nov 12 – Dec 10
Spinach
Sow Dec 7 – Dec 28
Fall sowing Nov 12 – Dec 3
Peas
Sow Dec 7 – Dec 21
Fall sowing Oct 29 – Nov 12
Kale
Indoors Nov 23 – Dec 7
Sow or transplant Dec 21 – Jan 4
Fall sowing Oct 29 – Nov 26
Broccoli
Indoors Nov 23 – Dec 7
Transplant Jan 4 – Jan 18
Fall sowing Oct 15 – Oct 29
Cabbage
Indoors Nov 23 – Dec 7
Transplant Dec 28 – Jan 11
Fall sowing Oct 15 – Oct 29
Carrots
Sow Dec 28 – Jan 18
Fall sowing Oct 15 – Oct 29
Radishes
Sow Dec 14 – Jan 4
Fall sowing Nov 26 – Dec 17
Beets
Sow Dec 28 – Jan 18
Fall sowing Oct 29 – Nov 12
Onions (sets or transplants)
Indoors Oct 26 – Nov 9
Plant Dec 21 – Jan 4
Potatoes
Plant Dec 28 – Jan 11
Garlic
Plant Jan 7 – Feb 4

Based on the average last frost (Jan 18) and first frost (Jan 7). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.

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