Frost dates for 79721 — Big Spring, TX
Last spring frostMar 20median date
First fall frostNov 13median date
Growing season238 daysfrost-free
Hardiness zone8aZone 8a
How Big Spring compares
- In 8 years out of 10, the last spring frost in Big Spring falls between March 1 and April 7, a 37-day window. The first fall frost falls between October 31 and November 29.
- The median last frost is 5 days later than the Texas median of Mar 15.
- Its 238-day growing season is longer than 38% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 9 days earlier than the zone 8a median of Mar 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8a chart.
- The weather station records an average of 54 nights a year at or below 32°F.
- Compared with Midland, TX, 75 km away, the last frost here is 6 days earlier than there and the growing season is 10 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 1 |
| 50% (median) | March 20 |
| 10% (safe for tender plants) | April 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 31 |
| 50% (median) | November 13 |
| 90% (late) | November 29 |
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 Big Spring, TX
Frost dates for 79721 — Big Spring, TX — last frost Mar 20, first frost Nov 13, zone 8a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 26 to Jan 9Start indoors: Dec 26 to Jan 9Transplant outside: Feb 20 to Mar 6
Start indoors: Jan 9 to Jan 23Transplant outside: Apr 3 to Apr 17
Start indoors: Jan 9 to Jan 23Transplant outside: Apr 3 to Apr 17
Start indoors: Jan 23 to Feb 6Transplant outside: Mar 27 to Apr 10
Start indoors: Jan 23 to Feb 6Transplant outside: Feb 27 to Mar 13Sow outdoors: Feb 20 to Mar 27Plant for fall: Sep 18 to Oct 16
Start indoors: Jan 23 to Feb 6Transplant outside: Feb 20 to Mar 6Sow outdoors: Feb 20 to Mar 6Plant for fall: Sep 4 to Sep 25
Start indoors: Jan 23 to Feb 6Transplant outside: Mar 6 to Mar 20Plant for fall: Aug 7 to Aug 28
Start indoors: Jan 23 to Feb 6Transplant outside: Feb 27 to Mar 13Plant for fall: Aug 7 to Aug 28
Start indoors: Jan 23 to Feb 6Transplant outside: Mar 6 to Mar 20Plant for fall: Aug 7 to Aug 28
Start indoors: Feb 6 to Feb 20Transplant outside: Apr 10 to Apr 24Sow outdoors: Apr 10 to Apr 24
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 27 to Apr 10
Sow outdoors: Feb 6 to Feb 27Plant for fall: Aug 21 to Sep 11
Sow outdoors: Feb 6 to Feb 27Plant for fall: Sep 18 to Oct 9
Sow outdoors: Feb 13 to Mar 27Plant for fall: Oct 2 to Oct 23
Start indoors: Feb 20 to Feb 27Transplant outside: Apr 3 to Apr 10Sow outdoors: Mar 27 to Apr 10Plant for fall: Aug 28 to Sep 11
Start indoors: Feb 20 to Feb 27Sow outdoors: Mar 27 to Apr 10Plant for fall: Sep 4 to Sep 18
Start indoors: Feb 20 to Feb 27Sow outdoors: Mar 27 to Apr 10
Start indoors: Feb 20 to Feb 27Transplant outside: Apr 3 to Apr 17
Sow outdoors: Feb 27 to Mar 27Plant for fall: Aug 21 to Sep 4
Sow outdoors: Feb 27 to Mar 27Plant for fall: Sep 4 to Sep 18
Sow outdoors: Feb 27 to Mar 20
Sow outdoors: Mar 6 to Apr 3Plant for fall: Sep 4 to Sep 18
Sow outdoors: Mar 6 to Mar 27Plant for fall: Sep 18 to Oct 9
Sow outdoors: Mar 27 to Apr 17Plant for fall: Aug 28 to Sep 11
Sow outdoors: Mar 27 to Apr 10
Transplant outside: Apr 3 to Apr 24
Plant for fall: Oct 30 to Dec 4
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Big Spring, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 26 – Jan 9 | Feb 20 – Mar 6 | — | — |
| Peppers | Jan 9 – Jan 23 | Apr 3 – Apr 17 | — | — |
| Eggplant | Jan 9 – Jan 23 | Apr 3 – Apr 17 | — | — |
| Tomatoes | Jan 23 – Feb 6 | Mar 27 – Apr 10 | — | — |
| Lettuce | Jan 23 – Feb 6 | Feb 27 – Mar 13 | Feb 20 – Mar 27 | Sep 18 – Oct 16 |
| Kale | Jan 23 – Feb 6 | Feb 20 – Mar 6 | Feb 20 – Mar 6 | Sep 4 – Sep 25 |
| Broccoli | Jan 23 – Feb 6 | Mar 6 – Mar 20 | — | Aug 7 – Aug 28 |
| Cabbage | Jan 23 – Feb 6 | Feb 27 – Mar 13 | — | Aug 7 – Aug 28 |
| Cauliflower | Jan 23 – Feb 6 | Mar 6 – Mar 20 | — | Aug 7 – Aug 28 |
| Okra | Feb 6 – Feb 20 | Apr 10 – Apr 24 | Apr 10 – Apr 24 | — |
| Basil | Feb 6 – Feb 20 | Mar 27 – Apr 10 | — | — |
| Peas | — | — | Feb 6 – Feb 27 | Aug 21 – Sep 11 |
| Spinach | — | — | Feb 6 – Feb 27 | Sep 18 – Oct 9 |
| Radishes | — | — | Feb 13 – Mar 27 | Oct 2 – Oct 23 |
| Cucumbers | Feb 20 – Feb 27 | Apr 3 – Apr 10 | Mar 27 – Apr 10 | Aug 28 – Sep 11 |
| Zucchini & Summer Squash | Feb 20 – Feb 27 | — | Mar 27 – Apr 10 | Sep 4 – Sep 18 |
| Winter Squash & Pumpkins | Feb 20 – Feb 27 | — | Mar 27 – Apr 10 | — |
| Melons & Watermelon | Feb 20 – Feb 27 | Apr 3 – Apr 17 | — | — |
| Carrots | — | — | Feb 27 – Mar 27 | Aug 21 – Sep 4 |
| Beets | — | — | Feb 27 – Mar 27 | Sep 4 – Sep 18 |
| Potatoes | — | — | Feb 27 – Mar 20 | — |
| Swiss Chard | — | — | Mar 6 – Apr 3 | Sep 4 – Sep 18 |
| Cilantro | — | — | Mar 6 – Mar 27 | Sep 18 – Oct 9 |
| Green Beans | — | — | Mar 27 – Apr 17 | Aug 28 – Sep 11 |
| Sweet Corn | — | — | Mar 27 – Apr 10 | — |
| Sweet Potatoes | — | Apr 3 – Apr 24 | — | — |
| Garlic | — | — | — | Oct 30 – Dec 4 |
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 Big Spring, TX weather station, 8 km away (elevation 2,510 ft (765 m)).
ZIP codes in Big Spring: 79720 79721
Frost dates near Big Spring
- Coahoma Mar 20 · Nov 13
- Forsan Mar 20 · Nov 13
- Knott Mar 20 · Nov 13
- Westbrook Apr 4 · Nov 5
- Ackerly Apr 4 · Nov 4
- Stanton Mar 26 · Nov 9
- Lenorah Mar 26 · Nov 9
- Ira Mar 27 · Nov 10
Frequently asked questions
When is the last frost in Big Spring, TX?
The median last spring frost in Big Spring, TX is March 20. There is still about a 10% chance of frost after April 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Big Spring, TX?
The median first fall frost is November 13, with about a 10% chance of frost before October 31.
How long is the growing season in Big Spring, TX?
About 238 days between the median last spring frost and first fall frost.
What planting zone is Big Spring, TX?
Big Spring, TX is in USDA hardiness zone 8a.