Iola, TX frost dates
Last spring frostMar 16median date
First fall frostNov 11median date
Growing season240 daysfrost-free
Hardiness zone9aZone 9a
How Iola compares
- In 8 years out of 10, the last spring frost in Iola falls between February 23 and April 7, a 43-day window. The first fall frost falls between October 25 and December 1.
- The median last frost is 1 day later than the Texas median of Mar 15.
- Its 240-day growing season is longer than 41% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 13 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 35 nights a year at or below 32°F.
- Compared with College Station, TX, 27 km away, the last frost here is 17 days later than there and the growing season is 36 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 23 |
| 50% (median) | March 16 |
| 10% (safe for tender plants) | April 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 25 |
| 50% (median) | November 11 |
| 90% (late) | December 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 Iola, TX
Iola, TX frost dates — last frost Mar 16, first frost Nov 11, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Feb 16 to Mar 2
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 30 to Apr 13
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 23 to Apr 6
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Sow outdoors: Feb 16 to Mar 23Plant for fall: Sep 16 to Oct 14
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 16 to Mar 2Sow outdoors: Feb 16 to Mar 2Plant for fall: Sep 2 to Sep 23
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 5 to Aug 26
Start indoors: Jan 19 to Feb 2Transplant outside: Feb 23 to Mar 9Plant for fall: Aug 5 to Aug 26
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 2 to Mar 16Plant for fall: Aug 5 to Aug 26
Start indoors: Feb 2 to Feb 16Transplant outside: Apr 6 to Apr 20Sow outdoors: Apr 6 to Apr 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 23 to Apr 6
Sow outdoors: Feb 2 to Feb 23Plant for fall: Aug 19 to Sep 9
Sow outdoors: Feb 2 to Feb 23Plant for fall: Sep 16 to Oct 7
Sow outdoors: Feb 9 to Mar 23Plant for fall: Sep 30 to Oct 21
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 6Sow outdoors: Mar 23 to Apr 6Plant for fall: Aug 26 to Sep 9
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6Plant for fall: Sep 2 to Sep 16
Start indoors: Feb 16 to Feb 23Sow outdoors: Mar 23 to Apr 6
Start indoors: Feb 16 to Feb 23Transplant outside: Mar 30 to Apr 13
Sow outdoors: Feb 23 to Mar 23Plant for fall: Aug 19 to Sep 2
Sow outdoors: Feb 23 to Mar 23Plant for fall: Sep 2 to Sep 16
Sow outdoors: Feb 23 to Mar 16
Sow outdoors: Mar 2 to Mar 30Plant for fall: Sep 2 to Sep 16
Sow outdoors: Mar 2 to Mar 23Plant for fall: Sep 16 to Oct 7
Sow outdoors: Mar 23 to Apr 13Plant for fall: Aug 26 to Sep 9
Sow outdoors: Mar 23 to Apr 6
Transplant outside: Mar 30 to Apr 20
Plant for fall: Oct 28 to Dec 2
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Iola, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 22 – Jan 5 | Feb 16 – Mar 2 | — | — |
| Peppers | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Eggplant | Jan 5 – Jan 19 | Mar 30 – Apr 13 | — | — |
| Tomatoes | Jan 19 – Feb 2 | Mar 23 – Apr 6 | — | — |
| Lettuce | Jan 19 – Feb 2 | Feb 23 – Mar 9 | Feb 16 – Mar 23 | Sep 16 – Oct 14 |
| Kale | Jan 19 – Feb 2 | Feb 16 – Mar 2 | Feb 16 – Mar 2 | Sep 2 – Sep 23 |
| Broccoli | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 5 – Aug 26 |
| Cabbage | Jan 19 – Feb 2 | Feb 23 – Mar 9 | — | Aug 5 – Aug 26 |
| Cauliflower | Jan 19 – Feb 2 | Mar 2 – Mar 16 | — | Aug 5 – Aug 26 |
| Okra | Feb 2 – Feb 16 | Apr 6 – Apr 20 | Apr 6 – Apr 20 | — |
| Basil | Feb 2 – Feb 16 | Mar 23 – Apr 6 | — | — |
| Peas | — | — | Feb 2 – Feb 23 | Aug 19 – Sep 9 |
| Spinach | — | — | Feb 2 – Feb 23 | Sep 16 – Oct 7 |
| Radishes | — | — | Feb 9 – Mar 23 | Sep 30 – Oct 21 |
| Cucumbers | Feb 16 – Feb 23 | Mar 30 – Apr 6 | Mar 23 – Apr 6 | Aug 26 – Sep 9 |
| Zucchini & Summer Squash | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | Sep 2 – Sep 16 |
| Winter Squash & Pumpkins | Feb 16 – Feb 23 | — | Mar 23 – Apr 6 | — |
| Melons & Watermelon | Feb 16 – Feb 23 | Mar 30 – Apr 13 | — | — |
| Carrots | — | — | Feb 23 – Mar 23 | Aug 19 – Sep 2 |
| Beets | — | — | Feb 23 – Mar 23 | Sep 2 – Sep 16 |
| Potatoes | — | — | Feb 23 – Mar 16 | — |
| Swiss Chard | — | — | Mar 2 – Mar 30 | Sep 2 – Sep 16 |
| Cilantro | — | — | Mar 2 – Mar 23 | Sep 16 – Oct 7 |
| Green Beans | — | — | Mar 23 – Apr 13 | Aug 26 – Sep 9 |
| Sweet Corn | — | — | Mar 23 – Apr 6 | — |
| Sweet Potatoes | — | Mar 30 – Apr 20 | — | — |
| Garlic | — | — | — | Oct 28 – Dec 2 |
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 Madisonville, TX weather station, 28 km away (elevation 253 ft (77 m)).
Frost dates near Iola
- Bedias Mar 16 · Nov 11
- Kurten Feb 27 · Nov 30
- Roans Prairie Mar 16 · Nov 11
- North Zulch Mar 16 · Nov 11
- Anderson Mar 7 · Nov 19
- Shiro Mar 2 · Nov 26
- Richards Mar 2 · Nov 26
- College Station Feb 27 · Nov 30
- Bryan Feb 27 · Nov 30
- Madisonville Mar 16 · Nov 11
Frequently asked questions
When is the last frost in Iola, TX?
The median last spring frost in Iola, TX is March 16. 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 Iola, TX?
The median first fall frost is November 11, with about a 10% chance of frost before October 25.
How long is the growing season in Iola, TX?
About 240 days between the median last spring frost and first fall frost.
What planting zone is Iola, TX?
Iola, TX is in USDA hardiness zone 9a.