When is the last frost in Missouri City, TX?

The average last spring frost (50% probability of 32°F) in Missouri City is around February 15, based on NOAA/NCEI 1991–2020 normals at the Thompsons 3 Wsw, 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 Missouri City?

The average first fall frost in Missouri City, TX is around December 6, giving roughly a 297-day frost-free growing season.

What planting zone is Missouri City, TX?

Missouri City is in USDA plant hardiness zone 9b (average annual extreme minimum temperature 25 to 30°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Missouri City?

In Missouri City, TX the warmest month is August (avg high 93.3°F) and the coldest is January (avg low 43.2°F). It averages about 50.2″ of precipitation a year.

Home › Texas › Missouri City

Missouri City, TX Planting Calendar & Frost Dates

USDA hardiness zone 9b · ZIP 77459 · elevation 21′ · NOAA & USDA data

Missouri City is in USDA hardiness zone 9b (winters can dip to 25 to 30°F), with a growing season of about 297 days between the average last spring frost (February 15) and first fall frost (December 6). The warmest month is August (avg high 93.3°F); the coldest is January (avg low 43.2°F). It averages 50.2″ 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

min temp 25 to 30°F

Last spring frost

February 15

avg (50% prob, 32°F)

First fall frost

December 6

avg (50% prob, 32°F)

Growing season

297 days

frost-free window

Warmest month

August

avg high 93.3°F

Month-by-month typical weather in Missouri City

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Thompsons 3 Wsw, TX (6.6 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	62.7	43.2	53	4.1	0
February	66.6	47.3	57	3	0
March	72.4	52.9	62.6	3.4	0
April	78.9	58.3	68.6	3.6	0
May	85.4	66.3	75.9	4.9	0
June	90.4	72.1	81.2	4.6	0
July	92.1	74.2	83.2	3.8	0
August	93.3	74.1	83.7	4.5	0
September	89.2	70	79.6	4.9	0
October	82.1	60.7	71.4	5.2	0
November	72.3	51.8	62.1	4.1	0
December	65.1	45.6	55.3	3.9	0.1

What to plant when in Missouri City

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: January 4 · Transplant out: February 22
Peppers	warm	Start seeds indoors: December 21 · Transplant out: March 1
Cucumbers	warm	Direct sow: February 22
Zucchini / squash	warm	Direct sow: February 22
Bush beans	warm	Direct sow: February 22
Sweet corn	warm	Direct sow: February 22
Basil	warm	Transplant out: February 22
Peas	cool	Sow (spring): January 11 · Sow (fall): October 11
Spinach	cool	Sow (spring): January 4 · Sow (fall): October 11
Lettuce	cool	Sow (spring): January 18 · Sow (fall): October 11
Kale	cool	Transplant (spring): January 25 · Sow (fall): September 27
Broccoli	cool	Transplant (spring): February 1
Carrots	cool	Sow (spring): January 25 · Sow (fall): September 27
Onions	cool	Transplant (spring): January 18
Potatoes	cool	Plant seed potatoes: February 1
Radishes	cool	Sow (spring): January 18 · Sow (fall): October 25

Dates are computed from Missouri City'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

Sugar Land, TX Pearland, TX Houston, TX Friendswood, TX Pasadena, TX League City, TX Baytown, TX Texas 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 — Thompsons 3 Wsw, TX, 6.6 mi (confidence: high). Monthly weather normals: Thompsons 3 Wsw, 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.