When is the last frost in Galveston, TX?

The average last spring frost (50% probability of 32°F) in Galveston is around January 25, based on NOAA/NCEI 1991–2020 normals at the Galveston, TX station (1.9 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Galveston?

The average first fall frost in Galveston, TX is around January 1, giving roughly a 348-day frost-free growing season.

What planting zone is Galveston, TX?

Galveston is in USDA plant hardiness zone 10a (average annual extreme minimum temperature 30 to 35°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Galveston?

In Galveston, TX the warmest month is August (avg high 92°F) and the coldest is January (avg low 48.9°F). It averages about 47.2″ of precipitation a year.

Home › Texas › Galveston

Galveston, TX Planting Calendar & Frost Dates

USDA hardiness zone 10a · ZIP 77550 · elevation 2′ · NOAA & USDA data

Galveston is in USDA hardiness zone 10a (winters can dip to 30 to 35°F), with a growing season of about 348 days between the average last spring frost (January 25) and first fall frost (January 1). The warmest month is August (avg high 92°F); the coldest is January (avg low 48.9°F). It averages 47.2″ of precipitation a year. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

10a

min temp 30 to 35°F

Last spring frost

January 25

avg (50% prob, 32°F)

First fall frost

January 1

avg (50% prob, 32°F)

Growing season

348 days

frost-free window

Warmest month

August

avg high 92°F

Month-by-month typical weather in Galveston

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Galveston Scholes Fld, TX (5.9 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	63.2	48.9	56	4.3	0
February	66.4	52.3	59.3	2.1	0
March	72	58.4	65.2	3	0
April	78	65	71.5	2.1	0
May	84	72.4	78.2	3	0
June	89.5	78.1	83.8	4.2	0
July	91.3	79.7	85.5	3.4	0
August	92	79.8	85.9	4.7	0
September	88.7	76.1	82.4	6.7	0
October	82.1	68.6	75.3	5.2	0
November	72.4	58.7	65.5	4.3	0
December	65.5	51.6	58.5	4.2	0.1

What to plant when in Galveston

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: December 14 · Transplant out: February 1
Peppers	warm	Start seeds indoors: November 30 · Transplant out: February 8
Cucumbers	warm	Direct sow: February 1
Zucchini / squash	warm	Direct sow: February 1
Bush beans	warm	Direct sow: February 1
Sweet corn	warm	Direct sow: February 1
Basil	warm	Transplant out: February 1
Peas	cool	Sow (spring): December 21 · Sow (fall): November 6
Spinach	cool	Sow (spring): December 14 · Sow (fall): November 6
Lettuce	cool	Sow (spring): December 28 · Sow (fall): November 6
Kale	cool	Transplant (spring): January 4 · Sow (fall): October 23
Broccoli	cool	Transplant (spring): January 11
Carrots	cool	Sow (spring): January 4 · Sow (fall): October 23
Onions	cool	Transplant (spring): December 28
Potatoes	cool	Plant seed potatoes: January 11
Radishes	cool	Sow (spring): December 28 · Sow (fall): November 20

Dates are computed from Galveston's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

Want the exact dates for your yard? →
Look up your precise ZIP-code frost dates and a full 26-crop planting calendar on our free interactive tool.
Open the frost & planting tool

🌾 Get a frost reminder

One email in early spring and early fall with the dates for your area. No spam.

Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in Texas

Texas City, TX League City, TX Friendswood, TX Baytown, TX Pearland, TX Pasadena, TX Houston, TX Missouri City, TX

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Galveston, TX, 1.9 mi (confidence: high). Monthly weather normals: Galveston Scholes Fld, TX, 5.9 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.