Frost dates for 78747 — Austin, TX
How Austin compares
- In 8 years out of 10, the last spring frost in Austin falls between February 20 and April 2, a 41-day window. The first fall frost falls between November 1 and December 5.
- The median last frost is 3 days earlier than the Texas median of Mar 15.
- Its 249-day growing season is longer than 56% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is 9 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 33 nights a year at or below 32°F.
- Compared with San Antonio, TX, 103 km away, the last frost here is 15 days later than there and the growing season is 27 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | February 20 |
| 50% (median) | March 12 |
| 10% (safe for tender plants) | April 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 1 |
| 50% (median) | November 16 |
| 90% (late) | December 5 |
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 78747 — Austin, TX — last frost Mar 12, first frost Nov 16, zone 9a. whenisthelastfrost.com
When to plant vegetables in Austin, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 18 – Jan 1 | Feb 12 – Feb 26 | — | — |
| Peppers | Jan 1 – Jan 15 | Mar 26 – Apr 9 | — | — |
| Eggplant | Jan 1 – Jan 15 | Mar 26 – Apr 9 | — | — |
| Tomatoes | Jan 15 – Jan 29 | Mar 19 – Apr 2 | — | — |
| Lettuce | Jan 15 – Jan 29 | Feb 19 – Mar 5 | Feb 12 – Mar 19 | Sep 21 – Oct 19 |
| Kale | Jan 15 – Jan 29 | Feb 12 – Feb 26 | Feb 12 – Feb 26 | Sep 7 – Sep 28 |
| Broccoli | Jan 15 – Jan 29 | Feb 26 – Mar 12 | — | Aug 10 – Aug 31 |
| Cabbage | Jan 15 – Jan 29 | Feb 19 – Mar 5 | — | Aug 10 – Aug 31 |
| Cauliflower | Jan 15 – Jan 29 | Feb 26 – Mar 12 | — | Aug 10 – Aug 31 |
| Okra | Jan 29 – Feb 12 | Apr 2 – Apr 16 | Apr 2 – Apr 16 | — |
| Basil | Jan 29 – Feb 12 | Mar 19 – Apr 2 | — | — |
| Peas | — | — | Jan 29 – Feb 19 | Aug 24 – Sep 14 |
| Spinach | — | — | Jan 29 – Feb 19 | Sep 21 – Oct 12 |
| Radishes | — | — | Feb 5 – Mar 19 | Oct 5 – Oct 26 |
| Cucumbers | Feb 12 – Feb 19 | Mar 26 – Apr 2 | Mar 19 – Apr 2 | Aug 31 – Sep 14 |
| Zucchini & Summer Squash | Feb 12 – Feb 19 | — | Mar 19 – Apr 2 | Sep 7 – Sep 21 |
| Winter Squash & Pumpkins | Feb 12 – Feb 19 | — | Mar 19 – Apr 2 | — |
| Melons & Watermelon | Feb 12 – Feb 19 | Mar 26 – Apr 9 | — | — |
| Carrots | — | — | Feb 19 – Mar 19 | Aug 24 – Sep 7 |
| Beets | — | — | Feb 19 – Mar 19 | Sep 7 – Sep 21 |
| Potatoes | — | — | Feb 19 – Mar 12 | — |
| Swiss Chard | — | — | Feb 26 – Mar 26 | Sep 7 – Sep 21 |
| Cilantro | — | — | Feb 26 – Mar 19 | Sep 21 – Oct 12 |
| Green Beans | — | — | Mar 19 – Apr 9 | Aug 31 – Sep 14 |
| Sweet Corn | — | — | Mar 19 – Apr 2 | — |
| Sweet Potatoes | — | Mar 26 – Apr 16 | — | — |
| Garlic | — | — | — | Nov 2 – Dec 7 |
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 Bergstrom Ap, TX weather station, 9 km away (elevation 479 ft (146 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
- Manchaca Mar 10 · Nov 17
- Buda Mar 10 · Nov 17
- Del Valle Mar 12 · Nov 16
- Kyle Feb 28 · Nov 29
- Mc Neil Feb 20 · Dec 3
- Cedar Creek Mar 14 · Nov 19
- Dale Mar 14 · Nov 19
- Maxwell Feb 28 · Nov 29
Frequently asked questions
When is the last frost in Austin, TX?
The median last spring frost in Austin, TX is March 12. There is still about a 10% chance of frost after April 2, 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 16, with about a 10% chance of frost before November 1.
How long is the growing season in Austin, TX?
About 249 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.