Flatonia, TX frost dates
Last spring frostMar 2median date
First fall frostNov 27median date
Growing season270 daysfrost-free
Hardiness zone9aZone 9a
How Flatonia compares
- In 8 years out of 10, the last spring frost in Flatonia falls between February 4 and March 21, a 45-day window. The first fall frost falls between November 8 and December 18.
- The median last frost is 13 days earlier than the Texas median of Mar 15.
- Its 270-day growing season is longer than 81% 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 11 nights a year at or below 32°F.
- Compared with San Marcos, TX, 89 km away, the last frost here is 2 days later than there and the growing season is 4 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 4 |
| 50% (median) | March 2 |
| 10% (safe for tender plants) | March 21 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 8 |
| 50% (median) | November 27 |
| 90% (late) | December 18 |
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 Flatonia, TX
Flatonia, TX frost dates — last frost Mar 2, first frost Nov 27, zone 9a. whenisthelastfrost.com
Crop
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Start indoors: Dec 8 to Dec 22Transplant outside: Feb 2 to Feb 16
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Mar 16 to Mar 30
Start indoors: Dec 22 to Jan 5Start indoors: Dec 22 to Jan 5Transplant outside: Mar 16 to Mar 30
Start indoors: Jan 5 to Jan 19Transplant outside: Mar 9 to Mar 23
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 9 to Feb 23Sow outdoors: Feb 2 to Mar 9Plant for fall: Oct 2 to Oct 30
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 2 to Feb 16Sow outdoors: Feb 2 to Feb 16Plant for fall: Sep 18 to Oct 9
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 16 to Mar 2Plant for fall: Aug 21 to Sep 11
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 9 to Feb 23Plant for fall: Aug 21 to Sep 11
Start indoors: Jan 5 to Jan 19Transplant outside: Feb 16 to Mar 2Plant for fall: Aug 21 to Sep 11
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 23 to Apr 6Sow outdoors: Mar 23 to Apr 6
Start indoors: Jan 19 to Feb 2Transplant outside: Mar 9 to Mar 23
Sow outdoors: Jan 19 to Feb 9Plant for fall: Sep 4 to Sep 25
Sow outdoors: Jan 19 to Feb 9Plant for fall: Oct 2 to Oct 23
Sow outdoors: Jan 26 to Mar 9Plant for fall: Oct 16 to Nov 6
Start indoors: Feb 2 to Feb 9Transplant outside: Mar 16 to Mar 23Sow outdoors: Mar 9 to Mar 23Plant for fall: Sep 11 to Sep 25
Start indoors: Feb 2 to Feb 9Sow outdoors: Mar 9 to Mar 23Plant for fall: Sep 18 to Oct 2
Start indoors: Feb 2 to Feb 9Sow outdoors: Mar 9 to Mar 23
Start indoors: Feb 2 to Feb 9Transplant outside: Mar 16 to Mar 30
Sow outdoors: Feb 9 to Mar 9Plant for fall: Sep 4 to Sep 18
Sow outdoors: Feb 9 to Mar 9Plant for fall: Sep 18 to Oct 2
Sow outdoors: Feb 9 to Mar 2
Sow outdoors: Feb 16 to Mar 16Plant for fall: Sep 18 to Oct 2
Sow outdoors: Feb 16 to Mar 9Plant for fall: Oct 2 to Oct 23
Sow outdoors: Mar 9 to Mar 30Plant for fall: Sep 11 to Sep 25
Sow outdoors: Mar 9 to Mar 23
Transplant outside: Mar 16 to Apr 6
Plant for fall: Nov 13 to Dec 18
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Flatonia, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 8 – Dec 22 | Feb 2 – Feb 16 | — | — |
| Peppers | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Eggplant | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Tomatoes | Jan 5 – Jan 19 | Mar 9 – Mar 23 | — | — |
| Lettuce | Jan 5 – Jan 19 | Feb 9 – Feb 23 | Feb 2 – Mar 9 | Oct 2 – Oct 30 |
| Kale | Jan 5 – Jan 19 | Feb 2 – Feb 16 | Feb 2 – Feb 16 | Sep 18 – Oct 9 |
| Broccoli | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 21 – Sep 11 |
| Cabbage | Jan 5 – Jan 19 | Feb 9 – Feb 23 | — | Aug 21 – Sep 11 |
| Cauliflower | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 21 – Sep 11 |
| Okra | Jan 19 – Feb 2 | Mar 23 – Apr 6 | Mar 23 – Apr 6 | — |
| Basil | Jan 19 – Feb 2 | Mar 9 – Mar 23 | — | — |
| Peas | — | — | Jan 19 – Feb 9 | Sep 4 – Sep 25 |
| Spinach | — | — | Jan 19 – Feb 9 | Oct 2 – Oct 23 |
| Radishes | — | — | Jan 26 – Mar 9 | Oct 16 – Nov 6 |
| Cucumbers | Feb 2 – Feb 9 | Mar 16 – Mar 23 | Mar 9 – Mar 23 | Sep 11 – Sep 25 |
| Zucchini & Summer Squash | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | Sep 18 – Oct 2 |
| Winter Squash & Pumpkins | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | — |
| Melons & Watermelon | Feb 2 – Feb 9 | Mar 16 – Mar 30 | — | — |
| Carrots | — | — | Feb 9 – Mar 9 | Sep 4 – Sep 18 |
| Beets | — | — | Feb 9 – Mar 9 | Sep 18 – Oct 2 |
| Potatoes | — | — | Feb 9 – Mar 2 | — |
| Swiss Chard | — | — | Feb 16 – Mar 16 | Sep 18 – Oct 2 |
| Cilantro | — | — | Feb 16 – Mar 9 | Oct 2 – Oct 23 |
| Green Beans | — | — | Mar 9 – Mar 30 | Sep 11 – Sep 25 |
| Sweet Corn | — | — | Mar 9 – Mar 23 | — |
| Sweet Potatoes | — | Mar 16 – Apr 6 | — | — |
| Garlic | — | — | — | Nov 13 – Dec 18 |
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 Flatonia 4se, TX weather station, 9 km away (elevation 469 ft (143 m)).
Frost dates near Flatonia
- Muldoon Mar 2 · Nov 27
- Moulton Mar 2 · Nov 27
- Schulenburg Mar 2 · Nov 27
- Waelder Mar 2 · Nov 27
- West Point Mar 12 · Nov 19
- Plum Mar 4 · Nov 25
- Oakland Feb 17 · Dec 4
- La Grange Mar 4 · Nov 25
- Rosanky Mar 12 · Nov 19
- Shiner Mar 2 · Nov 30
Frequently asked questions
When is the last frost in Flatonia, TX?
The median last spring frost in Flatonia, TX is March 2. 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 Flatonia, TX?
The median first fall frost is November 27, with about a 10% chance of frost before November 8.
How long is the growing season in Flatonia, TX?
About 270 days between the median last spring frost and first fall frost.
What planting zone is Flatonia, TX?
Flatonia, TX is in USDA hardiness zone 9a.