Frost dates for 78729 — Austin, TX
How Austin compares
- In 8 years out of 10, the last spring frost in Austin falls between February 22 and March 29, a 35-day window. The first fall frost falls between November 3 and December 9.
- The median last frost is 4 days earlier than the Texas median of Mar 15.
- Its 254-day growing season is longer than 63% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 8 days later than the zone 9a median of Mar 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 9a chart.
- The weather station records an average of 27 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 22 |
| 50% (median) | March 11 |
| 10% (safe for tender plants) | March 29 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 3 |
| 50% (median) | November 20 |
| 90% (late) | December 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 Austin, TX
Frost dates for 78729 — Austin, TX — last frost Mar 11, first frost Nov 20, zone 9a. whenisthelastfrost.com
When to plant vegetables in Austin, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 17 – Dec 31 | Feb 11 – Feb 25 | — | — |
| Peppers | Dec 31 – Jan 14 | Mar 25 – Apr 8 | — | — |
| Eggplant | Dec 31 – Jan 14 | Mar 25 – Apr 8 | — | — |
| Tomatoes | Jan 14 – Jan 28 | Mar 18 – Apr 1 | — | — |
| Lettuce | Jan 14 – Jan 28 | Feb 18 – Mar 4 | Feb 11 – Mar 18 | Sep 25 – Oct 23 |
| Kale | Jan 14 – Jan 28 | Feb 11 – Feb 25 | Feb 11 – Feb 25 | Sep 11 – Oct 2 |
| Broccoli | Jan 14 – Jan 28 | Feb 25 – Mar 11 | — | Aug 14 – Sep 4 |
| Cabbage | Jan 14 – Jan 28 | Feb 18 – Mar 4 | — | Aug 14 – Sep 4 |
| Cauliflower | Jan 14 – Jan 28 | Feb 25 – Mar 11 | — | Aug 14 – Sep 4 |
| Okra | Jan 28 – Feb 11 | Apr 1 – Apr 15 | Apr 1 – Apr 15 | — |
| Basil | Jan 28 – Feb 11 | Mar 18 – Apr 1 | — | — |
| Peas | — | — | Jan 28 – Feb 18 | Aug 28 – Sep 18 |
| Spinach | — | — | Jan 28 – Feb 18 | Sep 25 – Oct 16 |
| Radishes | — | — | Feb 4 – Mar 18 | Oct 9 – Oct 30 |
| Cucumbers | Feb 11 – Feb 18 | Mar 25 – Apr 1 | Mar 18 – Apr 1 | Sep 4 – Sep 18 |
| Zucchini & Summer Squash | Feb 11 – Feb 18 | — | Mar 18 – Apr 1 | Sep 11 – Sep 25 |
| Winter Squash & Pumpkins | Feb 11 – Feb 18 | — | Mar 18 – Apr 1 | — |
| Melons & Watermelon | Feb 11 – Feb 18 | Mar 25 – Apr 8 | — | — |
| Carrots | — | — | Feb 18 – Mar 18 | Aug 28 – Sep 11 |
| Beets | — | — | Feb 18 – Mar 18 | Sep 11 – Sep 25 |
| Potatoes | — | — | Feb 18 – Mar 11 | — |
| Swiss Chard | — | — | Feb 25 – Mar 25 | Sep 11 – Sep 25 |
| Cilantro | — | — | Feb 25 – Mar 18 | Sep 25 – Oct 16 |
| Green Beans | — | — | Mar 18 – Apr 8 | Sep 4 – Sep 18 |
| Sweet Corn | — | — | Mar 18 – Apr 1 | — |
| Sweet Potatoes | — | Mar 25 – Apr 15 | — | — |
| Garlic | — | — | — | Nov 6 – Dec 11 |
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 Austin Great Hills, TX weather station, 4 km away (elevation 879 ft (268 m)).
ZIP codes in Austin: 73301 73344 78701 78702 78703 78704 78705 78708 78709 78710 78711 78712 78713 78714 78715 78716 78717 78718 78719 78720 78721 78722 78723 78724 78725 78726 78727 78728 78729 78730 78731 78732 78733 78734 78735 78736 78737 78738 78739 78741 78742 78744 78745 78746 78747 78748 78749 78750 78751 78752 78753 78754 78755 78756 78757 78758 78759 78760 78761 78762 …
Frost dates near Austin
- Cedar Park Mar 11 · Nov 20
- Pflugerville Mar 11 · Nov 20
- Mc Neil Feb 20 · Dec 3
- Leander Mar 11 · Nov 20
- Round Rock Mar 6 · Nov 24
- Hutto Mar 8 · Nov 21
- Georgetown Mar 6 · Nov 24
- Manor Mar 4 · Nov 24
Frequently asked questions
When is the last frost in Austin, TX?
The median last spring frost in Austin, TX is March 11. There is still about a 10% chance of frost after March 29, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Austin, TX?
The median first fall frost is November 20, with about a 10% chance of frost before November 3.
How long is the growing season in Austin, TX?
About 254 days between the median last spring frost and first fall frost.
What planting zone is Austin, TX?
Austin, TX is in USDA hardiness zone 9a.