When is the last frost in Amarillo, TX?

The average last spring frost (50% probability of 32°F) in Amarillo is around April 15, based on NOAA/NCEI 1991–2020 normals at the Amarillo 7ene, TX station (7.6 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 Amarillo?

The average first fall frost in Amarillo, TX is around October 29, giving roughly a 196-day frost-free growing season.

What planting zone is Amarillo, TX?

Amarillo is in USDA plant hardiness zone 7a (average annual extreme minimum temperature 0 to 5°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Amarillo?

In Amarillo, TX the warmest month is July (avg high 92.9°F) and the coldest is January (avg low 24.9°F). It averages about 19.7″ of precipitation a year and 17.2″ of snow.

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Amarillo, TX Planting Calendar & Frost Dates

USDA hardiness zone 7a · ZIP 79101 · elevation 1093′ · NOAA & USDA data

Amarillo is in USDA hardiness zone 7a (winters can dip to 0 to 5°F), with a growing season of about 196 days between the average last spring frost (April 15) and first fall frost (October 29). The warmest month is July (avg high 92.9°F); the coldest is January (avg low 24.9°F). It averages 19.7″ of precipitation a year and 17.2″ 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 0 to 5°F

Last spring frost

April 15

avg (50% prob, 32°F)

First fall frost

October 29

avg (50% prob, 32°F)

Growing season

196 days

frost-free window

Warmest month

July

avg high 92.9°F

Month-by-month typical weather in Amarillo

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Amarillo, TX (7.6 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	52.2	24.9	38.6	0.7	4
February	56.1	27.5	41.8	0.5	3.5
March	64.8	34.8	49.8	1.3	1.9
April	72.4	42.5	57.5	1.5	0.5
May	80.9	52.6	66.8	2.3	0.2
June	89.7	62.4	76.1	2.9	0
July	92.9	66.4	79.6	2.8	0
August	91	65.3	78.1	2.9	0
September	84	57.8	70.9	1.7	0
October	73	45.4	59.2	1.8	0.7
November	61.3	33.5	47.4	0.8	2.6
December	51.9	25.7	38.8	0.7	3.8

What to plant when in Amarillo

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: March 4 · Transplant out: April 22
Peppers	warm	Start seeds indoors: February 18 · Transplant out: April 29
Cucumbers	warm	Direct sow: April 22
Zucchini / squash	warm	Direct sow: April 22
Bush beans	warm	Direct sow: April 22
Sweet corn	warm	Direct sow: April 22
Basil	warm	Transplant out: April 22
Peas	cool	Sow (spring): March 11 · Sow (fall): September 3
Spinach	cool	Sow (spring): March 4 · Sow (fall): September 3
Lettuce	cool	Sow (spring): March 18 · Sow (fall): September 3
Kale	cool	Transplant (spring): March 25 · Sow (fall): August 20
Broccoli	cool	Transplant (spring): April 1
Carrots	cool	Sow (spring): March 25 · Sow (fall): August 20
Onions	cool	Transplant (spring): March 18
Potatoes	cool	Plant seed potatoes: April 1
Radishes	cool	Sow (spring): March 18 · Sow (fall): September 17

Dates are computed from Amarillo'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.

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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 — Amarillo 7ene, TX, 7.6 mi (confidence: high). Monthly weather normals: Amarillo, TX, 7.6 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.