Barnhart, TX frost dates
Last spring frostMar 20median date
First fall frostNov 14median date
Growing season239 daysfrost-free
Hardiness zone8aZone 8a
How Barnhart compares
- In 8 years out of 10, the last spring frost in Barnhart falls between February 28 and April 10, a 41-day window. The first fall frost falls between October 30 and December 2.
- The median last frost is 5 days later than the Texas median of Mar 15.
- Its 239-day growing season is longer than 40% 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 56 nights a year at or below 32°F.
- Compared with San Angelo, TX, 79 km away, the last frost here is the same as there and the growing season is 4 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 28 |
| 50% (median) | March 20 |
| 10% (safe for tender plants) | April 10 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 30 |
| 50% (median) | November 14 |
| 90% (late) | December 2 |
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 Barnhart, TX
Barnhart, TX frost dates — last frost Mar 20, first frost Nov 14, 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 19 to Oct 17
Start indoors: Jan 23 to Feb 6Transplant outside: Feb 20 to Mar 6Sow outdoors: Feb 20 to Mar 6Plant for fall: Sep 5 to Sep 26
Start indoors: Jan 23 to Feb 6Transplant outside: Mar 6 to Mar 20Plant for fall: Aug 8 to Aug 29
Start indoors: Jan 23 to Feb 6Transplant outside: Feb 27 to Mar 13Plant for fall: Aug 8 to Aug 29
Start indoors: Jan 23 to Feb 6Transplant outside: Mar 6 to Mar 20Plant for fall: Aug 8 to Aug 29
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 22 to Sep 12
Sow outdoors: Feb 6 to Feb 27Plant for fall: Sep 19 to Oct 10
Sow outdoors: Feb 13 to Mar 27Plant for fall: Oct 3 to Oct 24
Start indoors: Feb 20 to Feb 27Transplant outside: Apr 3 to Apr 10Sow outdoors: Mar 27 to Apr 10Plant for fall: Aug 29 to Sep 12
Start indoors: Feb 20 to Feb 27Sow outdoors: Mar 27 to Apr 10Plant for fall: Sep 5 to Sep 19
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 22 to Sep 5
Sow outdoors: Feb 27 to Mar 27Plant for fall: Sep 5 to Sep 19
Sow outdoors: Feb 27 to Mar 20
Sow outdoors: Mar 6 to Apr 3Plant for fall: Sep 5 to Sep 19
Sow outdoors: Mar 6 to Mar 27Plant for fall: Sep 19 to Oct 10
Sow outdoors: Mar 27 to Apr 17Plant for fall: Aug 29 to Sep 12
Sow outdoors: Mar 27 to Apr 10
Transplant outside: Apr 3 to Apr 24
Plant for fall: Oct 31 to Dec 5
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Barnhart, 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 19 – Oct 17 |
| Kale | Jan 23 – Feb 6 | Feb 20 – Mar 6 | Feb 20 – Mar 6 | Sep 5 – Sep 26 |
| Broccoli | Jan 23 – Feb 6 | Mar 6 – Mar 20 | — | Aug 8 – Aug 29 |
| Cabbage | Jan 23 – Feb 6 | Feb 27 – Mar 13 | — | Aug 8 – Aug 29 |
| Cauliflower | Jan 23 – Feb 6 | Mar 6 – Mar 20 | — | Aug 8 – Aug 29 |
| 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 22 – Sep 12 |
| Spinach | — | — | Feb 6 – Feb 27 | Sep 19 – Oct 10 |
| Radishes | — | — | Feb 13 – Mar 27 | Oct 3 – Oct 24 |
| Cucumbers | Feb 20 – Feb 27 | Apr 3 – Apr 10 | Mar 27 – Apr 10 | Aug 29 – Sep 12 |
| Zucchini & Summer Squash | Feb 20 – Feb 27 | — | Mar 27 – Apr 10 | Sep 5 – Sep 19 |
| 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 22 – Sep 5 |
| Beets | — | — | Feb 27 – Mar 27 | Sep 5 – Sep 19 |
| Potatoes | — | — | Feb 27 – Mar 20 | — |
| Swiss Chard | — | — | Mar 6 – Apr 3 | Sep 5 – Sep 19 |
| Cilantro | — | — | Mar 6 – Mar 27 | Sep 19 – Oct 10 |
| Green Beans | — | — | Mar 27 – Apr 17 | Aug 29 – Sep 12 |
| Sweet Corn | — | — | Mar 27 – Apr 10 | — |
| Sweet Potatoes | — | Apr 3 – Apr 24 | — | — |
| Garlic | — | — | — | Oct 31 – Dec 5 |
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 Lake, TX weather station, 26 km away (elevation 2,733 ft (833 m)).
Frost dates near Barnhart
- Mertzon Apr 1 · Nov 4
- Big Lake Mar 20 · Nov 14
- Ozona Mar 21 · Nov 6
- Knickerbocker Mar 22 · Nov 10
- Christoval Mar 22 · Nov 10
- Eldorado Mar 22 · Nov 10
- Water Valley Apr 6 · Nov 2
- Carlsbad Apr 6 · Nov 2
- Rankin Mar 12 · Nov 16
- Iraan Mar 31 · Nov 3
Frequently asked questions
When is the last frost in Barnhart, TX?
The median last spring frost in Barnhart, TX is March 20. There is still about a 10% chance of frost after April 10, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Barnhart, TX?
The median first fall frost is November 14, with about a 10% chance of frost before October 30.
How long is the growing season in Barnhart, TX?
About 239 days between the median last spring frost and first fall frost.
What planting zone is Barnhart, TX?
Barnhart, TX is in USDA hardiness zone 8a.