Frost dates for 78961 — Round Top, TX
Last spring frostMar 4median date
First fall frostNov 25median date
Growing season266 daysfrost-free
Hardiness zone9aZone 9a
How Round Top compares
- In 8 years out of 10, the last spring frost in Round Top falls between February 6 and March 25, a 47-day window. The first fall frost falls between November 5 and December 19.
- The median last frost is 11 days earlier than the Texas median of Mar 15.
- Its 266-day growing season is longer than 79% 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 19 nights a year at or below 32°F.
- Compared with College Station, TX, 70 km away, the last frost here is 5 days later than there and the growing season is 10 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 6 |
| 50% (median) | March 4 |
| 10% (safe for tender plants) | March 25 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 5 |
| 50% (median) | November 25 |
| 90% (late) | December 19 |
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 Round Top, TX
Frost dates for 78961 — Round Top, TX — last frost Mar 4, first frost Nov 25, zone 9a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Dec 10 to Dec 24Transplant outside: Feb 4 to Feb 18
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Mar 18 to Apr 1
Start indoors: Dec 24 to Jan 7Start indoors: Dec 24 to Jan 7Transplant outside: Mar 18 to Apr 1
Start indoors: Jan 7 to Jan 21Transplant outside: Mar 11 to Mar 25
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 11 to Feb 25Sow outdoors: Feb 4 to Mar 11Plant for fall: Sep 30 to Oct 28
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 4 to Feb 18Sow outdoors: Feb 4 to Feb 18Plant for fall: Sep 16 to Oct 7
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 18 to Mar 4Plant for fall: Aug 19 to Sep 9
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 11 to Feb 25Plant for fall: Aug 19 to Sep 9
Start indoors: Jan 7 to Jan 21Transplant outside: Feb 18 to Mar 4Plant for fall: Aug 19 to Sep 9
Start indoors: Jan 21 to Feb 4Transplant outside: Mar 25 to Apr 8Sow outdoors: Mar 25 to Apr 8
Start indoors: Jan 21 to Feb 4Transplant outside: Mar 11 to Mar 25
Sow outdoors: Jan 21 to Feb 11Plant for fall: Sep 2 to Sep 23
Sow outdoors: Jan 21 to Feb 11Plant for fall: Sep 30 to Oct 21
Sow outdoors: Jan 28 to Mar 11Plant for fall: Oct 14 to Nov 4
Start indoors: Feb 4 to Feb 11Transplant outside: Mar 18 to Mar 25Sow outdoors: Mar 11 to Mar 25Plant for fall: Sep 9 to Sep 23
Start indoors: Feb 4 to Feb 11Sow outdoors: Mar 11 to Mar 25Plant for fall: Sep 16 to Sep 30
Start indoors: Feb 4 to Feb 11Sow outdoors: Mar 11 to Mar 25
Start indoors: Feb 4 to Feb 11Transplant outside: Mar 18 to Apr 1
Sow outdoors: Feb 11 to Mar 11Plant for fall: Sep 2 to Sep 16
Sow outdoors: Feb 11 to Mar 11Plant for fall: Sep 16 to Sep 30
Sow outdoors: Feb 11 to Mar 4
Sow outdoors: Feb 18 to Mar 18Plant for fall: Sep 16 to Sep 30
Sow outdoors: Feb 18 to Mar 11Plant for fall: Sep 30 to Oct 21
Sow outdoors: Mar 11 to Apr 1Plant for fall: Sep 9 to Sep 23
Sow outdoors: Mar 11 to Mar 25
Transplant outside: Mar 18 to Apr 8
Plant for fall: Nov 11 to Dec 16
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Round Top, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 10 – Dec 24 | Feb 4 – Feb 18 | — | — |
| Peppers | Dec 24 – Jan 7 | Mar 18 – Apr 1 | — | — |
| Eggplant | Dec 24 – Jan 7 | Mar 18 – Apr 1 | — | — |
| Tomatoes | Jan 7 – Jan 21 | Mar 11 – Mar 25 | — | — |
| Lettuce | Jan 7 – Jan 21 | Feb 11 – Feb 25 | Feb 4 – Mar 11 | Sep 30 – Oct 28 |
| Kale | Jan 7 – Jan 21 | Feb 4 – Feb 18 | Feb 4 – Feb 18 | Sep 16 – Oct 7 |
| Broccoli | Jan 7 – Jan 21 | Feb 18 – Mar 4 | — | Aug 19 – Sep 9 |
| Cabbage | Jan 7 – Jan 21 | Feb 11 – Feb 25 | — | Aug 19 – Sep 9 |
| Cauliflower | Jan 7 – Jan 21 | Feb 18 – Mar 4 | — | Aug 19 – Sep 9 |
| Okra | Jan 21 – Feb 4 | Mar 25 – Apr 8 | Mar 25 – Apr 8 | — |
| Basil | Jan 21 – Feb 4 | Mar 11 – Mar 25 | — | — |
| Peas | — | — | Jan 21 – Feb 11 | Sep 2 – Sep 23 |
| Spinach | — | — | Jan 21 – Feb 11 | Sep 30 – Oct 21 |
| Radishes | — | — | Jan 28 – Mar 11 | Oct 14 – Nov 4 |
| Cucumbers | Feb 4 – Feb 11 | Mar 18 – Mar 25 | Mar 11 – Mar 25 | Sep 9 – Sep 23 |
| Zucchini & Summer Squash | Feb 4 – Feb 11 | — | Mar 11 – Mar 25 | Sep 16 – Sep 30 |
| Winter Squash & Pumpkins | Feb 4 – Feb 11 | — | Mar 11 – Mar 25 | — |
| Melons & Watermelon | Feb 4 – Feb 11 | Mar 18 – Apr 1 | — | — |
| Carrots | — | — | Feb 11 – Mar 11 | Sep 2 – Sep 16 |
| Beets | — | — | Feb 11 – Mar 11 | Sep 16 – Sep 30 |
| Potatoes | — | — | Feb 11 – Mar 4 | — |
| Swiss Chard | — | — | Feb 18 – Mar 18 | Sep 16 – Sep 30 |
| Cilantro | — | — | Feb 18 – Mar 11 | Sep 30 – Oct 21 |
| Green Beans | — | — | Mar 11 – Apr 1 | Sep 9 – Sep 23 |
| Sweet Corn | — | — | Mar 11 – Mar 25 | — |
| Sweet Potatoes | — | Mar 18 – Apr 8 | — | — |
| Garlic | — | — | — | Nov 11 – Dec 16 |
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 La Grange, TX weather station, 24 km away (elevation 358 ft (109 m)).
ZIP codes in Round Top: 78954 78961
Frost dates near Round Top
- Carmine Mar 18 · Nov 9
- Burton Mar 18 · Nov 9
- Warda Mar 4 · Nov 25
- Ledbetter Mar 18 · Nov 9
- Fayetteville Mar 9 · Nov 20
- Industry Mar 2 · Nov 30
- Ellinger Mar 4 · Nov 25
- Bleiblerville Mar 2 · Nov 30
Frequently asked questions
When is the last frost in Round Top, TX?
The median last spring frost in Round Top, TX is March 4. There is still about a 10% chance of frost after March 25, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Round Top, TX?
The median first fall frost is November 25, with about a 10% chance of frost before November 5.
How long is the growing season in Round Top, TX?
About 266 days between the median last spring frost and first fall frost.
What planting zone is Round Top, TX?
Round Top, TX is in USDA hardiness zone 9a.