Crystal City, TX frost dates
Frost is light and occasional here — typically a few cold nights around midwinter (about 8 a year). Cover tender plants when frost is forecast.
How Crystal City compares
- In a typical year, frost nights in Crystal City fall between December 10 and February 10. In 1 year in 10 the first frost comes as early as November 19, or the last frost as late as March 9.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 6 |
| 50% (median) | February 10 |
| 10% (safe for tender plants) | March 9 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 19 |
| 50% (median) | December 10 |
| 90% (late) | January 9 |
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 Crystal City, TX
Crystal City, TX frost dates — last frost Feb 10, first frost Dec 10, zone 9a. whenisthelastfrost.com
In mild climates, summer heat limits many crops as much as frost does. Use this calendar for spring planting and lean on fall and winter for cool-season crops.
When to plant vegetables in Crystal City, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 18 – Dec 2 | Jan 13 – Jan 27 | — | — |
| Peppers | Dec 2 – Dec 16 | Feb 24 – Mar 10 | — | — |
| Eggplant | Dec 2 – Dec 16 | Feb 24 – Mar 10 | — | — |
| Tomatoes | Dec 16 – Dec 30 | Feb 17 – Mar 3 | — | — |
| Lettuce | Dec 16 – Dec 30 | Jan 20 – Feb 3 | Jan 13 – Feb 17 | Oct 15 – Nov 12 |
| Kale | Dec 16 – Dec 30 | Jan 13 – Jan 27 | Jan 13 – Jan 27 | Oct 1 – Oct 22 |
| Broccoli | Dec 16 – Dec 30 | Jan 27 – Feb 10 | — | Sep 3 – Sep 24 |
| Cabbage | Dec 16 – Dec 30 | Jan 20 – Feb 3 | — | Sep 3 – Sep 24 |
| Cauliflower | Dec 16 – Dec 30 | Jan 27 – Feb 10 | — | Sep 3 – Sep 24 |
| Okra | Dec 30 – Jan 13 | Mar 3 – Mar 17 | Mar 3 – Mar 17 | — |
| Basil | Dec 30 – Jan 13 | Feb 17 – Mar 3 | — | — |
| Peas | — | — | Dec 30 – Jan 20 | Sep 17 – Oct 8 |
| Spinach | — | — | Dec 30 – Jan 20 | Oct 15 – Nov 5 |
| Radishes | — | — | Jan 6 – Feb 17 | Oct 29 – Nov 19 |
| Cucumbers | Jan 13 – Jan 20 | Feb 24 – Mar 3 | Feb 17 – Mar 3 | Sep 24 – Oct 8 |
| Zucchini & Summer Squash | Jan 13 – Jan 20 | — | Feb 17 – Mar 3 | Oct 1 – Oct 15 |
| Winter Squash & Pumpkins | Jan 13 – Jan 20 | — | Feb 17 – Mar 3 | — |
| Melons & Watermelon | Jan 13 – Jan 20 | Feb 24 – Mar 10 | — | — |
| Carrots | — | — | Jan 20 – Feb 17 | Sep 17 – Oct 1 |
| Beets | — | — | Jan 20 – Feb 17 | Oct 1 – Oct 15 |
| Potatoes | — | — | Jan 20 – Feb 10 | — |
| Swiss Chard | — | — | Jan 27 – Feb 24 | Oct 1 – Oct 15 |
| Cilantro | — | — | Jan 27 – Feb 17 | Oct 15 – Nov 5 |
| Green Beans | — | — | Feb 17 – Mar 10 | Sep 24 – Oct 8 |
| Sweet Corn | — | — | Feb 17 – Mar 3 | — |
| Sweet Potatoes | — | Feb 24 – Mar 17 | — | — |
| Garlic | — | — | — | Nov 26 – Dec 31 |
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 Crystal City, TX weather station, about 1 km away (elevation 581 ft (177 m)).
Frost dates near Crystal City
- Carrizo Springs Mar 5 · Nov 22
- Big Wells Feb 10 · Dec 10
- Asherton Mar 5 · Nov 22
- La Pryor Feb 10 · Dec 10
- Batesville Feb 10 · Dec 10
- Catarina Mar 5 · Nov 22
- El Indio Feb 19 · Dec 1
- Uvalde Mar 12 · Nov 14
- Dilley Feb 16 · Dec 6
- Eagle Pass Feb 19 · Dec 1
Frequently asked questions
When is the last frost in Crystal City, TX?
The median last spring frost in Crystal City, TX is February 10. There is still about a 10% chance of frost after March 9, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Crystal City, TX?
The median first fall frost is December 10, with about a 10% chance of frost before November 19.
How long is the growing season in Crystal City, TX?
About 303 days between the median last spring frost and first fall frost.
What planting zone is Crystal City, TX?
Crystal City, TX is in USDA hardiness zone 9a.