When is the last frost in Corpus Christi, TX?

The average last spring frost (50% probability of 32°F) in Corpus Christi is around January 31, based on NOAA/NCEI 1991–2020 normals at the Corpus Christi Nws, TX station (6.6 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 Corpus Christi?

The average first fall frost in Corpus Christi, TX is around December 22, giving roughly a 331-day frost-free growing season.

What planting zone is Corpus Christi, TX?

Corpus Christi 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 Corpus Christi?

In Corpus Christi, TX the warmest month is August (avg high 92.9°F) and the coldest is January (avg low 46.8°F). It averages about 30.9″ of precipitation a year and 0.3″ of snow.

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Corpus Christi, TX Planting Calendar & Frost Dates

USDA hardiness zone 10a · ZIP 78401 · elevation 13′ · NOAA & USDA data

Corpus Christi is in USDA hardiness zone 10a (winters can dip to 30 to 35°F), with a growing season of about 331 days between the average last spring frost (January 31) and first fall frost (December 22). The warmest month is August (avg high 92.9°F); the coldest is January (avg low 46.8°F). It averages 30.9″ of precipitation a year and 0.3″ of snow, mostly mid-winter. 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 31

avg (50% prob, 32°F)

First fall frost

December 22

avg (50% prob, 32°F)

Growing season

331 days

frost-free window

Warmest month

August

avg high 92.9°F

Month-by-month typical weather in Corpus Christi

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Corpus Christi Nws, TX (6.6 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	65.5	46.8	56.2	1.4	0
February	69.9	51	60.5	1.4	0
March	74.5	57.6	66	2.3	0
April	80.5	63.4	72	2	0
May	85.7	70.6	78.2	3.3	0
June	90.1	75.1	82.6	3.5	0
July	92.3	76.1	84.2	2.5	0
August	92.9	76.5	84.7	2.8	0
September	89.1	72.6	80.8	5.4	0
October	83.5	65.9	74.7	2.7	0
November	74.7	56.2	65.5	2	0
December	68.2	48.7	58.5	1.9	0.3

What to plant when in Corpus Christi

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: December 20 · Transplant out: February 7
Peppers	warm	Start seeds indoors: December 6 · Transplant out: February 14
Cucumbers	warm	Direct sow: February 7
Zucchini / squash	warm	Direct sow: February 7
Bush beans	warm	Direct sow: February 7
Sweet corn	warm	Direct sow: February 7
Basil	warm	Transplant out: February 7
Peas	cool	Sow (spring): December 27 · Sow (fall): October 27
Spinach	cool	Sow (spring): December 20 · Sow (fall): October 27
Lettuce	cool	Sow (spring): January 3 · Sow (fall): October 27
Kale	cool	Transplant (spring): January 10 · Sow (fall): October 13
Broccoli	cool	Transplant (spring): January 17
Carrots	cool	Sow (spring): January 10 · Sow (fall): October 13
Onions	cool	Transplant (spring): January 3
Potatoes	cool	Plant seed potatoes: January 17
Radishes	cool	Sow (spring): January 3 · Sow (fall): November 10

Dates are computed from Corpus Christi'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.

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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

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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 — Corpus Christi Nws, TX, 6.6 mi (confidence: high). Monthly weather normals: Corpus Christi Nws, TX, 6.6 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.