Frost dates for 79121 — Amarillo, TX
Last spring frostApr 22median date
First fall frostOct 21median date
Growing season182 daysfrost-free
Hardiness zone7aZone 7a
How Amarillo compares
- In 8 years out of 10, the last spring frost in Amarillo falls between April 10 and May 3, a 23-day window. The first fall frost falls between October 6 and November 1.
- The median last frost is 38 days later than the Texas median of Mar 15.
- Its 182-day growing season is among the shortest of the 1,316 Texas places with a regular frost season.
- The last frost is 6 days later than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 128 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 10 |
| 50% (median) | April 22 |
| 10% (safe for tender plants) | May 3 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 6 |
| 50% (median) | October 21 |
| 90% (late) | November 1 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Amarillo, TX
Frost dates for 79121 — Amarillo, TX — last frost Apr 22, first frost Oct 21, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 28 to Feb 11Transplant outside: Mar 25 to Apr 8
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 11 to Feb 25Transplant outside: May 6 to May 20
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 29 to May 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Sow outdoors: Mar 25 to Apr 29Plant for fall: Aug 26 to Sep 23
Start indoors: Feb 25 to Mar 11Transplant outside: Mar 25 to Apr 8Sow outdoors: Mar 25 to Apr 8Plant for fall: Aug 12 to Sep 2
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 15 to Aug 5
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 1 to Apr 15Plant for fall: Jul 15 to Aug 5
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 8 to Apr 22Plant for fall: Jul 15 to Aug 5
Start indoors: Mar 11 to Mar 25Transplant outside: May 13 to May 27Sow outdoors: May 13 to May 27
Start indoors: Mar 11 to Mar 25Transplant outside: Apr 29 to May 13
Sow outdoors: Mar 11 to Apr 1Plant for fall: Jul 29 to Aug 19
Sow outdoors: Mar 11 to Apr 1Plant for fall: Aug 26 to Sep 16
Sow outdoors: Mar 18 to Apr 29Plant for fall: Sep 9 to Sep 30
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 13Sow outdoors: Apr 29 to May 13Plant for fall: Aug 5 to Aug 19
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13Plant for fall: Aug 12 to Aug 26
Start indoors: Mar 25 to Apr 1Sow outdoors: Apr 29 to May 13
Start indoors: Mar 25 to Apr 1Transplant outside: May 6 to May 20
Sow outdoors: Apr 1 to Apr 29Plant for fall: Jul 29 to Aug 12
Sow outdoors: Apr 1 to Apr 29Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 1 to Apr 22
Sow outdoors: Apr 8 to May 6Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 8 to Apr 29Plant for fall: Aug 26 to Sep 16
Sow outdoors: Apr 29 to May 20Plant for fall: Aug 5 to Aug 19
Sow outdoors: Apr 29 to May 13
Transplant outside: May 6 to May 27
Plant for fall: Oct 7 to Nov 11
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Amarillo, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 28 – Feb 11 | Mar 25 – Apr 8 | — | — |
| Peppers | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Eggplant | Feb 11 – Feb 25 | May 6 – May 20 | — | — |
| Tomatoes | Feb 25 – Mar 11 | Apr 29 – May 13 | — | — |
| Lettuce | Feb 25 – Mar 11 | Apr 1 – Apr 15 | Mar 25 – Apr 29 | Aug 26 – Sep 23 |
| Kale | Feb 25 – Mar 11 | Mar 25 – Apr 8 | Mar 25 – Apr 8 | Aug 12 – Sep 2 |
| Broccoli | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 15 – Aug 5 |
| Cabbage | Feb 25 – Mar 11 | Apr 1 – Apr 15 | — | Jul 15 – Aug 5 |
| Cauliflower | Feb 25 – Mar 11 | Apr 8 – Apr 22 | — | Jul 15 – Aug 5 |
| Okra | Mar 11 – Mar 25 | May 13 – May 27 | May 13 – May 27 | — |
| Basil | Mar 11 – Mar 25 | Apr 29 – May 13 | — | — |
| Peas | — | — | Mar 11 – Apr 1 | Jul 29 – Aug 19 |
| Spinach | — | — | Mar 11 – Apr 1 | Aug 26 – Sep 16 |
| Radishes | — | — | Mar 18 – Apr 29 | Sep 9 – Sep 30 |
| Cucumbers | Mar 25 – Apr 1 | May 6 – May 13 | Apr 29 – May 13 | Aug 5 – Aug 19 |
| Zucchini & Summer Squash | Mar 25 – Apr 1 | — | Apr 29 – May 13 | Aug 12 – Aug 26 |
| Winter Squash & Pumpkins | Mar 25 – Apr 1 | — | Apr 29 – May 13 | — |
| Melons & Watermelon | Mar 25 – Apr 1 | May 6 – May 20 | — | — |
| Carrots | — | — | Apr 1 – Apr 29 | Jul 29 – Aug 12 |
| Beets | — | — | Apr 1 – Apr 29 | Aug 12 – Aug 26 |
| Potatoes | — | — | Apr 1 – Apr 22 | — |
| Swiss Chard | — | — | Apr 8 – May 6 | Aug 12 – Aug 26 |
| Cilantro | — | — | Apr 8 – Apr 29 | Aug 26 – Sep 16 |
| Green Beans | — | — | Apr 29 – May 20 | Aug 5 – Aug 19 |
| Sweet Corn | — | — | Apr 29 – May 13 | — |
| Sweet Potatoes | — | May 6 – May 27 | — | — |
| Garlic | — | — | — | Oct 7 – Nov 11 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Bushland 1 Wsw, TX weather station, 14 km away (elevation 3,819 ft (1,164 m)).
ZIP codes in Amarillo: 79101 79102 79103 79104 79105 79106 79107 79108 79109 79110 79111 79114 79116 79117 79118 79119 79120 79121 79124 79159 79166 79168 79172 79174 79178 79185 79189
Frost dates near Amarillo
- Bushland Apr 22 · Oct 21
- Canyon Apr 15 · Oct 25
- Wildorado Apr 22 · Oct 21
- Umbarger Apr 15 · Oct 25
- Dawn Apr 17 · Oct 25
- Vega Apr 22 · Oct 21
- Boys Ranch Apr 19 · Oct 23
- Claude Apr 15 · Oct 29
Frequently asked questions
When is the last frost in Amarillo, TX?
The median last spring frost in Amarillo, TX is April 22. There is still about a 10% chance of frost after May 3, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Amarillo, TX?
The median first fall frost is October 21, with about a 10% chance of frost before October 6.
How long is the growing season in Amarillo, TX?
About 182 days between the median last spring frost and first fall frost.
What planting zone is Amarillo, TX?
Amarillo, TX is in USDA hardiness zone 7a.