Heidenheimer, TX frost dates
Last spring frostMar 14median date
First fall frostNov 20median date
Growing season251 daysfrost-free
Hardiness zone9aZone 9a
How Heidenheimer compares
- In 8 years out of 10, the last spring frost in Heidenheimer falls between February 22 and April 4, a 41-day window. The first fall frost falls between October 29 and December 9.
- The median last frost is 1 day earlier than the Texas median of Mar 15.
- Its 251-day growing season is longer than 59% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 11 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.
- Heidenheimer shares its weather station with Temple, TX, 11 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 22 |
| 50% (median) | March 14 |
| 10% (safe for tender plants) | April 4 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 29 |
| 50% (median) | November 20 |
| 90% (late) | December 9 |
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 Heidenheimer, TX
Heidenheimer, TX frost dates — last frost Mar 14, first frost Nov 20, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 20 to Jan 3Start indoors: Dec 20 to Jan 3Transplant outside: Feb 14 to Feb 28
Start indoors: Jan 3 to Jan 17Transplant outside: Mar 28 to Apr 11
Start indoors: Jan 3 to Jan 17Transplant outside: Mar 28 to Apr 11
Start indoors: Jan 17 to Jan 31Transplant outside: Mar 21 to Apr 4
Start indoors: Jan 17 to Jan 31Transplant outside: Feb 21 to Mar 7Sow outdoors: Feb 14 to Mar 21Plant for fall: Sep 25 to Oct 23
Start indoors: Jan 17 to Jan 31Transplant outside: Feb 14 to Feb 28Sow outdoors: Feb 14 to Feb 28Plant for fall: Sep 11 to Oct 2
Start indoors: Jan 17 to Jan 31Transplant outside: Feb 28 to Mar 14Plant for fall: Aug 14 to Sep 4
Start indoors: Jan 17 to Jan 31Transplant outside: Feb 21 to Mar 7Plant for fall: Aug 14 to Sep 4
Start indoors: Jan 17 to Jan 31Transplant outside: Feb 28 to Mar 14Plant for fall: Aug 14 to Sep 4
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 4 to Apr 18Sow outdoors: Apr 4 to Apr 18
Start indoors: Jan 31 to Feb 14Transplant outside: Mar 21 to Apr 4
Sow outdoors: Jan 31 to Feb 21Plant for fall: Aug 28 to Sep 18
Sow outdoors: Jan 31 to Feb 21Plant for fall: Sep 25 to Oct 16
Sow outdoors: Feb 7 to Mar 21Plant for fall: Oct 9 to Oct 30
Start indoors: Feb 14 to Feb 21Transplant outside: Mar 28 to Apr 4Sow outdoors: Mar 21 to Apr 4Plant for fall: Sep 4 to Sep 18
Start indoors: Feb 14 to Feb 21Sow outdoors: Mar 21 to Apr 4Plant for fall: Sep 11 to Sep 25
Start indoors: Feb 14 to Feb 21Sow outdoors: Mar 21 to Apr 4
Start indoors: Feb 14 to Feb 21Transplant outside: Mar 28 to Apr 11
Sow outdoors: Feb 21 to Mar 21Plant for fall: Aug 28 to Sep 11
Sow outdoors: Feb 21 to Mar 21Plant for fall: Sep 11 to Sep 25
Sow outdoors: Feb 21 to Mar 14
Sow outdoors: Feb 28 to Mar 28Plant for fall: Sep 11 to Sep 25
Sow outdoors: Feb 28 to Mar 21Plant for fall: Sep 25 to Oct 16
Sow outdoors: Mar 21 to Apr 11Plant for fall: Sep 4 to Sep 18
Sow outdoors: Mar 21 to Apr 4
Transplant outside: Mar 28 to Apr 18
Plant for fall: Nov 6 to Dec 11
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Heidenheimer, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 20 – Jan 3 | Feb 14 – Feb 28 | — | — |
| Peppers | Jan 3 – Jan 17 | Mar 28 – Apr 11 | — | — |
| Eggplant | Jan 3 – Jan 17 | Mar 28 – Apr 11 | — | — |
| Tomatoes | Jan 17 – Jan 31 | Mar 21 – Apr 4 | — | — |
| Lettuce | Jan 17 – Jan 31 | Feb 21 – Mar 7 | Feb 14 – Mar 21 | Sep 25 – Oct 23 |
| Kale | Jan 17 – Jan 31 | Feb 14 – Feb 28 | Feb 14 – Feb 28 | Sep 11 – Oct 2 |
| Broccoli | Jan 17 – Jan 31 | Feb 28 – Mar 14 | — | Aug 14 – Sep 4 |
| Cabbage | Jan 17 – Jan 31 | Feb 21 – Mar 7 | — | Aug 14 – Sep 4 |
| Cauliflower | Jan 17 – Jan 31 | Feb 28 – Mar 14 | — | Aug 14 – Sep 4 |
| Okra | Jan 31 – Feb 14 | Apr 4 – Apr 18 | Apr 4 – Apr 18 | — |
| Basil | Jan 31 – Feb 14 | Mar 21 – Apr 4 | — | — |
| Peas | — | — | Jan 31 – Feb 21 | Aug 28 – Sep 18 |
| Spinach | — | — | Jan 31 – Feb 21 | Sep 25 – Oct 16 |
| Radishes | — | — | Feb 7 – Mar 21 | Oct 9 – Oct 30 |
| Cucumbers | Feb 14 – Feb 21 | Mar 28 – Apr 4 | Mar 21 – Apr 4 | Sep 4 – Sep 18 |
| Zucchini & Summer Squash | Feb 14 – Feb 21 | — | Mar 21 – Apr 4 | Sep 11 – Sep 25 |
| Winter Squash & Pumpkins | Feb 14 – Feb 21 | — | Mar 21 – Apr 4 | — |
| Melons & Watermelon | Feb 14 – Feb 21 | Mar 28 – Apr 11 | — | — |
| Carrots | — | — | Feb 21 – Mar 21 | Aug 28 – Sep 11 |
| Beets | — | — | Feb 21 – Mar 21 | Sep 11 – Sep 25 |
| Potatoes | — | — | Feb 21 – Mar 14 | — |
| Swiss Chard | — | — | Feb 28 – Mar 28 | Sep 11 – Sep 25 |
| Cilantro | — | — | Feb 28 – Mar 21 | Sep 25 – Oct 16 |
| Green Beans | — | — | Mar 21 – Apr 11 | Sep 4 – Sep 18 |
| Sweet Corn | — | — | Mar 21 – Apr 4 | — |
| Sweet Potatoes | — | Mar 28 – Apr 18 | — | — |
| Garlic | — | — | — | Nov 6 – Dec 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 Stillhouse Hollow Dam, TX weather station, 4 km away (elevation 705 ft (215 m)).
Frost dates near Heidenheimer
- Belton Mar 14 · Nov 20
- Nolanville Mar 14 · Nov 20
- Temple Mar 14 · Nov 20
- Harker Heights Mar 14 · Nov 20
- Salado Mar 14 · Nov 20
- Little River Academy Mar 14 · Nov 20
- Pendleton Mar 14 · Nov 20
- Holland Mar 5 · Nov 22
- Killeen Mar 14 · Nov 17
- Moody Mar 15 · Nov 18
Frequently asked questions
When is the last frost in Heidenheimer, TX?
The median last spring frost in Heidenheimer, TX is March 14. There is still about a 10% chance of frost after April 4, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Heidenheimer, TX?
The median first fall frost is November 20, with about a 10% chance of frost before October 29.
How long is the growing season in Heidenheimer, TX?
About 251 days between the median last spring frost and first fall frost.
What planting zone is Heidenheimer, TX?
Heidenheimer, TX is in USDA hardiness zone 9a.