Schwertner, TX frost dates
How Schwertner compares
- In 8 years out of 10, the last spring frost in Schwertner falls between February 13 and March 31, a 46-day window. The first fall frost falls between November 4 and December 11.
- The median last frost is 10 days earlier than the Texas median of Mar 15.
- Its 262-day growing season is longer than 74% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 11 days earlier than the zone 8b median of Mar 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8b chart.
- The weather station records an average of 25 nights a year at or below 32°F.
- Compared with Georgetown, TX, 26 km away, the last frost here is 1 day earlier than there and the growing season is 1 day shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 13 |
| 50% (median) | March 5 |
| 10% (safe for tender plants) | March 31 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 4 |
| 50% (median) | November 22 |
| 90% (late) | December 11 |
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 Schwertner, TX
Schwertner, TX frost dates — last frost Mar 5, first frost Nov 22, zone 8b. whenisthelastfrost.com
When to plant vegetables in Schwertner, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 11 – Dec 25 | Feb 5 – Feb 19 | — | — |
| Peppers | Dec 25 – Jan 8 | Mar 19 – Apr 2 | — | — |
| Eggplant | Dec 25 – Jan 8 | Mar 19 – Apr 2 | — | — |
| Tomatoes | Jan 8 – Jan 22 | Mar 12 – Mar 26 | — | — |
| Lettuce | Jan 8 – Jan 22 | Feb 12 – Feb 26 | Feb 5 – Mar 12 | Sep 27 – Oct 25 |
| Kale | Jan 8 – Jan 22 | Feb 5 – Feb 19 | Feb 5 – Feb 19 | Sep 13 – Oct 4 |
| Broccoli | Jan 8 – Jan 22 | Feb 19 – Mar 5 | — | Aug 16 – Sep 6 |
| Cabbage | Jan 8 – Jan 22 | Feb 12 – Feb 26 | — | Aug 16 – Sep 6 |
| Cauliflower | Jan 8 – Jan 22 | Feb 19 – Mar 5 | — | Aug 16 – Sep 6 |
| Okra | Jan 22 – Feb 5 | Mar 26 – Apr 9 | Mar 26 – Apr 9 | — |
| Basil | Jan 22 – Feb 5 | Mar 12 – Mar 26 | — | — |
| Peas | — | — | Jan 22 – Feb 12 | Aug 30 – Sep 20 |
| Spinach | — | — | Jan 22 – Feb 12 | Sep 27 – Oct 18 |
| Radishes | — | — | Jan 29 – Mar 12 | Oct 11 – Nov 1 |
| Cucumbers | Feb 5 – Feb 12 | Mar 19 – Mar 26 | Mar 12 – Mar 26 | Sep 6 – Sep 20 |
| Zucchini & Summer Squash | Feb 5 – Feb 12 | — | Mar 12 – Mar 26 | Sep 13 – Sep 27 |
| Winter Squash & Pumpkins | Feb 5 – Feb 12 | — | Mar 12 – Mar 26 | — |
| Melons & Watermelon | Feb 5 – Feb 12 | Mar 19 – Apr 2 | — | — |
| Carrots | — | — | Feb 12 – Mar 12 | Aug 30 – Sep 13 |
| Beets | — | — | Feb 12 – Mar 12 | Sep 13 – Sep 27 |
| Potatoes | — | — | Feb 12 – Mar 5 | — |
| Swiss Chard | — | — | Feb 19 – Mar 19 | Sep 13 – Sep 27 |
| Cilantro | — | — | Feb 19 – Mar 12 | Sep 27 – Oct 18 |
| Green Beans | — | — | Mar 12 – Apr 2 | Sep 6 – Sep 20 |
| Sweet Corn | — | — | Mar 12 – Mar 26 | — |
| Sweet Potatoes | — | Mar 19 – Apr 9 | — | — |
| Garlic | — | — | — | Nov 8 – Dec 13 |
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 Granger Dam, TX weather station, 21 km away (elevation 554 ft (169 m)).
Frost dates near Schwertner
- Jarrell Mar 6 · Nov 24
- Bartlett Mar 5 · Nov 22
- Granger Mar 5 · Nov 22
- Walburg Mar 6 · Nov 24
- Holland Mar 5 · Nov 22
- Salado Mar 14 · Nov 20
- Weir Mar 6 · Nov 24
- Davilla Mar 5 · Nov 22
- Little River Academy Mar 14 · Nov 20
- Harker Heights Mar 14 · Nov 20
Frequently asked questions
When is the last frost in Schwertner, TX?
The median last spring frost in Schwertner, TX is March 5. There is still about a 10% chance of frost after March 31, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Schwertner, TX?
The median first fall frost is November 22, with about a 10% chance of frost before November 4.
How long is the growing season in Schwertner, TX?
About 262 days between the median last spring frost and first fall frost.
What planting zone is Schwertner, TX?
Schwertner, TX is in USDA hardiness zone 8b.