When is the last frost in Keller, TX?

The average last spring frost (50% probability of 32°F) in Keller is around March 12, based on NOAA/NCEI 1991–2020 normals at the Ft Worth Alliance Ap, TX station (4 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 Keller?

The average first fall frost in Keller, TX is around November 17, giving roughly a 249-day frost-free growing season.

What planting zone is Keller, TX?

Keller is in USDA plant hardiness zone 8b (average annual extreme minimum temperature 15 to 20°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Keller?

In Keller, TX the warmest month is July (avg high 94°F) and the coldest is January (avg low 35.5°F). It averages about 38″ of precipitation a year and 2″ of snow.

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Keller, TX Planting Calendar & Frost Dates

USDA hardiness zone 8b · ZIP 76244 · elevation 196′ · NOAA & USDA data

Keller is in USDA hardiness zone 8b (winters can dip to 15 to 20°F), with a growing season of about 249 days between the average last spring frost (March 12) and first fall frost (November 17). The warmest month is July (avg high 94°F); the coldest is January (avg low 35.5°F). It averages 38″ of precipitation a year and 2″ 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

min temp 15 to 20°F

Last spring frost

March 12

avg (50% prob, 32°F)

First fall frost

November 17

avg (50% prob, 32°F)

Growing season

249 days

frost-free window

Warmest month

July

avg high 94°F

Month-by-month typical weather in Keller

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

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	55.5	35.5	45.5	2.2	0.1
February	59.4	39.2	49.3	2.6	1.3
March	67.2	46.9	57	3.3	0.3
April	74.6	54.2	64.4	3.3	0
May	82	63.5	72.7	4.3	0
June	89.9	71.4	80.7	4.3	0
July	94	75.2	84.6	2.8	0
August	94	74.7	84.3	2.6	0
September	86.7	67.5	77.1	2.7	0
October	76.7	56.1	66.4	4.6	0
November	65.3	45.3	55.3	2.6	0
December	56.7	37.1	46.9	2.9	0.3

What to plant when in Keller

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: January 29 · Transplant out: March 19
Peppers	warm	Start seeds indoors: January 15 · Transplant out: March 26
Cucumbers	warm	Direct sow: March 19
Zucchini / squash	warm	Direct sow: March 19
Bush beans	warm	Direct sow: March 19
Sweet corn	warm	Direct sow: March 19
Basil	warm	Transplant out: March 19
Peas	cool	Sow (spring): February 5 · Sow (fall): September 22
Spinach	cool	Sow (spring): January 29 · Sow (fall): September 22
Lettuce	cool	Sow (spring): February 12 · Sow (fall): September 22
Kale	cool	Transplant (spring): February 19 · Sow (fall): September 8
Broccoli	cool	Transplant (spring): February 26
Carrots	cool	Sow (spring): February 19 · Sow (fall): September 8
Onions	cool	Transplant (spring): February 12
Potatoes	cool	Plant seed potatoes: February 26
Radishes	cool	Sow (spring): February 12 · Sow (fall): October 6

Dates are computed from Keller'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

North Richland Hills, TX Haltom City, TX Hurst, TX Bedford, TX Flower Mound, TX Grapevine, TX Euless, TX Fort Worth, 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 — Ft Worth Alliance Ap, TX, 4 mi (confidence: high). Monthly weather normals: Ft Worth Wsfo, 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.