Del Valle, TX frost dates
Last spring frostMar 12median date
First fall frostNov 16median date
Growing season249 daysfrost-free
Hardiness zone9aZone 9a
How Del Valle compares
- In 8 years out of 10, the last spring frost in Del Valle falls between February 20 and April 2, a 41-day window. The first fall frost falls between November 1 and December 5.
- The median last frost is 3 days earlier than the Texas median of Mar 15.
- Its 249-day growing season is longer than 56% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 9 days later than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 33 nights a year at or below 32°F.
- Compared with Austin, TX, 21 km away, the last frost here is 20 days later than there and the growing season is 37 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 20 |
| 50% (median) | March 12 |
| 10% (safe for tender plants) | April 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 1 |
| 50% (median) | November 16 |
| 90% (late) | December 5 |
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 Del Valle, TX
Del Valle, TX frost dates — last frost Mar 12, first frost Nov 16, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 18 to Jan 1Start indoors: Dec 18 to Jan 1Transplant outside: Feb 12 to Feb 26
Start indoors: Jan 1 to Jan 15Transplant outside: Mar 26 to Apr 9
Start indoors: Jan 1 to Jan 15Transplant outside: Mar 26 to Apr 9
Start indoors: Jan 15 to Jan 29Transplant outside: Mar 19 to Apr 2
Start indoors: Jan 15 to Jan 29Transplant outside: Feb 19 to Mar 5Sow outdoors: Feb 12 to Mar 19Plant for fall: Sep 21 to Oct 19
Start indoors: Jan 15 to Jan 29Transplant outside: Feb 12 to Feb 26Sow outdoors: Feb 12 to Feb 26Plant for fall: Sep 7 to Sep 28
Start indoors: Jan 15 to Jan 29Transplant outside: Feb 26 to Mar 12Plant for fall: Aug 10 to Aug 31
Start indoors: Jan 15 to Jan 29Transplant outside: Feb 19 to Mar 5Plant for fall: Aug 10 to Aug 31
Start indoors: Jan 15 to Jan 29Transplant outside: Feb 26 to Mar 12Plant for fall: Aug 10 to Aug 31
Start indoors: Jan 29 to Feb 12Transplant outside: Apr 2 to Apr 16Sow outdoors: Apr 2 to Apr 16
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 19 to Apr 2
Sow outdoors: Jan 29 to Feb 19Plant for fall: Aug 24 to Sep 14
Sow outdoors: Jan 29 to Feb 19Plant for fall: Sep 21 to Oct 12
Sow outdoors: Feb 5 to Mar 19Plant for fall: Oct 5 to Oct 26
Start indoors: Feb 12 to Feb 19Transplant outside: Mar 26 to Apr 2Sow outdoors: Mar 19 to Apr 2Plant for fall: Aug 31 to Sep 14
Start indoors: Feb 12 to Feb 19Sow outdoors: Mar 19 to Apr 2Plant for fall: Sep 7 to Sep 21
Start indoors: Feb 12 to Feb 19Sow outdoors: Mar 19 to Apr 2
Start indoors: Feb 12 to Feb 19Transplant outside: Mar 26 to Apr 9
Sow outdoors: Feb 19 to Mar 19Plant for fall: Aug 24 to Sep 7
Sow outdoors: Feb 19 to Mar 19Plant for fall: Sep 7 to Sep 21
Sow outdoors: Feb 19 to Mar 12
Sow outdoors: Feb 26 to Mar 26Plant for fall: Sep 7 to Sep 21
Sow outdoors: Feb 26 to Mar 19Plant for fall: Sep 21 to Oct 12
Sow outdoors: Mar 19 to Apr 9Plant for fall: Aug 31 to Sep 14
Sow outdoors: Mar 19 to Apr 2
Transplant outside: Mar 26 to Apr 16
Plant for fall: Nov 2 to Dec 7
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Del Valle, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 18 – Jan 1 | Feb 12 – Feb 26 | — | — |
| Peppers | Jan 1 – Jan 15 | Mar 26 – Apr 9 | — | — |
| Eggplant | Jan 1 – Jan 15 | Mar 26 – Apr 9 | — | — |
| Tomatoes | Jan 15 – Jan 29 | Mar 19 – Apr 2 | — | — |
| Lettuce | Jan 15 – Jan 29 | Feb 19 – Mar 5 | Feb 12 – Mar 19 | Sep 21 – Oct 19 |
| Kale | Jan 15 – Jan 29 | Feb 12 – Feb 26 | Feb 12 – Feb 26 | Sep 7 – Sep 28 |
| Broccoli | Jan 15 – Jan 29 | Feb 26 – Mar 12 | — | Aug 10 – Aug 31 |
| Cabbage | Jan 15 – Jan 29 | Feb 19 – Mar 5 | — | Aug 10 – Aug 31 |
| Cauliflower | Jan 15 – Jan 29 | Feb 26 – Mar 12 | — | Aug 10 – Aug 31 |
| Okra | Jan 29 – Feb 12 | Apr 2 – Apr 16 | Apr 2 – Apr 16 | — |
| Basil | Jan 29 – Feb 12 | Mar 19 – Apr 2 | — | — |
| Peas | — | — | Jan 29 – Feb 19 | Aug 24 – Sep 14 |
| Spinach | — | — | Jan 29 – Feb 19 | Sep 21 – Oct 12 |
| Radishes | — | — | Feb 5 – Mar 19 | Oct 5 – Oct 26 |
| Cucumbers | Feb 12 – Feb 19 | Mar 26 – Apr 2 | Mar 19 – Apr 2 | Aug 31 – Sep 14 |
| Zucchini & Summer Squash | Feb 12 – Feb 19 | — | Mar 19 – Apr 2 | Sep 7 – Sep 21 |
| Winter Squash & Pumpkins | Feb 12 – Feb 19 | — | Mar 19 – Apr 2 | — |
| Melons & Watermelon | Feb 12 – Feb 19 | Mar 26 – Apr 9 | — | — |
| Carrots | — | — | Feb 19 – Mar 19 | Aug 24 – Sep 7 |
| Beets | — | — | Feb 19 – Mar 19 | Sep 7 – Sep 21 |
| Potatoes | — | — | Feb 19 – Mar 12 | — |
| Swiss Chard | — | — | Feb 26 – Mar 26 | Sep 7 – Sep 21 |
| Cilantro | — | — | Feb 26 – Mar 19 | Sep 21 – Oct 12 |
| Green Beans | — | — | Mar 19 – Apr 9 | Aug 31 – Sep 14 |
| Sweet Corn | — | — | Mar 19 – Apr 2 | — |
| Sweet Potatoes | — | Mar 26 – Apr 16 | — | — |
| Garlic | — | — | — | Nov 2 – Dec 7 |
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 Austin Bergstrom Ap, TX weather station, 7 km away (elevation 479 ft (146 m)).
Frost dates near Del Valle
- Cedar Creek Mar 14 · Nov 19
- Manor Mar 4 · Nov 24
- Austin Feb 20 · Dec 3
- Manchaca Mar 10 · Nov 17
- Mc Neil Feb 20 · Dec 3
- Dale Mar 14 · Nov 19
- Buda Mar 10 · Nov 17
- Elgin Mar 4 · Nov 24
- Red Rock Mar 14 · Nov 19
- Kyle Feb 28 · Nov 29
Frequently asked questions
When is the last frost in Del Valle, TX?
The median last spring frost in Del Valle, TX is March 12. There is still about a 10% chance of frost after April 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Del Valle, TX?
The median first fall frost is November 16, with about a 10% chance of frost before November 1.
How long is the growing season in Del Valle, TX?
About 249 days between the median last spring frost and first fall frost.
What planting zone is Del Valle, TX?
Del Valle, TX is in USDA hardiness zone 9a.