Simonton, TX frost dates
Last spring frostFeb 28median date
First fall frostNov 30median date
Growing season275 daysfrost-free
Hardiness zone9aZone 9a
How Simonton compares
- In 8 years out of 10, the last spring frost in Simonton falls between January 30 and March 21, a 50-day window. The first fall frost falls between November 9 and December 29.
- The median last frost is 15 days earlier than the Texas median of Mar 15.
- Its 275-day growing season is longer than 84% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is typical for zone 9a, where the median is Mar 3.
- The weather station records an average of 13 nights a year at or below 32°F.
- Nearby Sugar Land, TX, 33 km away, gets only light, occasional frost, a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 30 |
| 50% (median) | February 28 |
| 10% (safe for tender plants) | March 21 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 9 |
| 50% (median) | November 30 |
| 90% (late) | December 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 Simonton, TX
Simonton, TX frost dates — last frost Feb 28, first frost Nov 30, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 6 to Dec 20Transplant outside: Jan 31 to Feb 14
Start indoors: Dec 20 to Jan 3Start indoors: Dec 20 to Jan 3Transplant outside: Mar 14 to Mar 28
Start indoors: Dec 20 to Jan 3Start indoors: Dec 20 to Jan 3Transplant outside: Mar 14 to Mar 28
Start indoors: Jan 3 to Jan 17Transplant outside: Mar 7 to Mar 21
Start indoors: Jan 3 to Jan 17Transplant outside: Feb 7 to Feb 21Sow outdoors: Jan 31 to Mar 7Plant for fall: Oct 5 to Nov 2
Start indoors: Jan 3 to Jan 17Transplant outside: Jan 31 to Feb 14Sow outdoors: Jan 31 to Feb 14Plant for fall: Sep 21 to Oct 12
Start indoors: Jan 3 to Jan 17Transplant outside: Feb 14 to Feb 28Plant for fall: Aug 24 to Sep 14
Start indoors: Jan 3 to Jan 17Transplant outside: Feb 7 to Feb 21Plant for fall: Aug 24 to Sep 14
Start indoors: Jan 3 to Jan 17Transplant outside: Feb 14 to Feb 28Plant for fall: Aug 24 to Sep 14
Start indoors: Jan 17 to Jan 31Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 21 to Apr 4
Start indoors: Jan 17 to Jan 31Transplant outside: Mar 7 to Mar 21
Sow outdoors: Jan 17 to Feb 7Plant for fall: Sep 7 to Sep 28
Sow outdoors: Jan 17 to Feb 7Plant for fall: Oct 5 to Oct 26
Sow outdoors: Jan 24 to Mar 7Plant for fall: Oct 19 to Nov 9
Start indoors: Jan 31 to Feb 7Transplant outside: Mar 14 to Mar 21Sow outdoors: Mar 7 to Mar 21Plant for fall: Sep 14 to Sep 28
Start indoors: Jan 31 to Feb 7Sow outdoors: Mar 7 to Mar 21Plant for fall: Sep 21 to Oct 5
Start indoors: Jan 31 to Feb 7Sow outdoors: Mar 7 to Mar 21
Start indoors: Jan 31 to Feb 7Transplant outside: Mar 14 to Mar 28
Sow outdoors: Feb 7 to Mar 7Plant for fall: Sep 7 to Sep 21
Sow outdoors: Feb 7 to Mar 7Plant for fall: Sep 21 to Oct 5
Sow outdoors: Feb 7 to Feb 28
Sow outdoors: Feb 14 to Mar 14Plant for fall: Sep 21 to Oct 5
Sow outdoors: Feb 14 to Mar 7Plant for fall: Oct 5 to Oct 26
Sow outdoors: Mar 7 to Mar 28Plant for fall: Sep 14 to Sep 28
Sow outdoors: Mar 7 to Mar 21
Transplant outside: Mar 14 to Apr 4
Plant for fall: Nov 16 to Dec 21
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Simonton, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 6 – Dec 20 | Jan 31 – Feb 14 | — | — |
| Peppers | Dec 20 – Jan 3 | Mar 14 – Mar 28 | — | — |
| Eggplant | Dec 20 – Jan 3 | Mar 14 – Mar 28 | — | — |
| Tomatoes | Jan 3 – Jan 17 | Mar 7 – Mar 21 | — | — |
| Lettuce | Jan 3 – Jan 17 | Feb 7 – Feb 21 | Jan 31 – Mar 7 | Oct 5 – Nov 2 |
| Kale | Jan 3 – Jan 17 | Jan 31 – Feb 14 | Jan 31 – Feb 14 | Sep 21 – Oct 12 |
| Broccoli | Jan 3 – Jan 17 | Feb 14 – Feb 28 | — | Aug 24 – Sep 14 |
| Cabbage | Jan 3 – Jan 17 | Feb 7 – Feb 21 | — | Aug 24 – Sep 14 |
| Cauliflower | Jan 3 – Jan 17 | Feb 14 – Feb 28 | — | Aug 24 – Sep 14 |
| Okra | Jan 17 – Jan 31 | Mar 21 – Apr 4 | Mar 21 – Apr 4 | — |
| Basil | Jan 17 – Jan 31 | Mar 7 – Mar 21 | — | — |
| Peas | — | — | Jan 17 – Feb 7 | Sep 7 – Sep 28 |
| Spinach | — | — | Jan 17 – Feb 7 | Oct 5 – Oct 26 |
| Radishes | — | — | Jan 24 – Mar 7 | Oct 19 – Nov 9 |
| Cucumbers | Jan 31 – Feb 7 | Mar 14 – Mar 21 | Mar 7 – Mar 21 | Sep 14 – Sep 28 |
| Zucchini & Summer Squash | Jan 31 – Feb 7 | — | Mar 7 – Mar 21 | Sep 21 – Oct 5 |
| Winter Squash & Pumpkins | Jan 31 – Feb 7 | — | Mar 7 – Mar 21 | — |
| Melons & Watermelon | Jan 31 – Feb 7 | Mar 14 – Mar 28 | — | — |
| Carrots | — | — | Feb 7 – Mar 7 | Sep 7 – Sep 21 |
| Beets | — | — | Feb 7 – Mar 7 | Sep 21 – Oct 5 |
| Potatoes | — | — | Feb 7 – Feb 28 | — |
| Swiss Chard | — | — | Feb 14 – Mar 14 | Sep 21 – Oct 5 |
| Cilantro | — | — | Feb 14 – Mar 7 | Oct 5 – Oct 26 |
| Green Beans | — | — | Mar 7 – Mar 28 | Sep 14 – Sep 28 |
| Sweet Corn | — | — | Mar 7 – Mar 21 | — |
| Sweet Potatoes | — | Mar 14 – Apr 4 | — | — |
| Garlic | — | — | — | Nov 16 – Dec 21 |
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 Sealy, TX weather station, 19 km away (elevation 197 ft (60 m)).
Frost dates near Simonton
- Wallis Feb 28 · Nov 30
- Fulshear Feb 28 · Nov 30
- Orchard Feb 28 · Nov 30
- Brookshire Feb 28 · Nov 30
- Pattison Feb 28 · Nov 30
- San Felipe Feb 28 · Nov 30
- Sealy Feb 28 · Nov 30
- Katy Feb 2 · Dec 11
- Beasley Feb 15 · Dec 6
- Rosenberg Feb 9 · Dec 13
Frequently asked questions
When is the last frost in Simonton, TX?
The median last spring frost in Simonton, TX is February 28. There is still about a 10% chance of frost after March 21, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Simonton, TX?
The median first fall frost is November 30, with about a 10% chance of frost before November 9.
How long is the growing season in Simonton, TX?
About 275 days between the median last spring frost and first fall frost.
What planting zone is Simonton, TX?
Simonton, TX is in USDA hardiness zone 9a.