Frost dates for 77068 — Houston, TX
How Houston compares
- In 8 years out of 10, the last spring frost in Houston falls between January 21 and March 15, a 53-day window. The first fall frost falls between November 13 and January 5.
- The median last frost is 24 days earlier than the Texas median of Mar 15.
- Its 287-day growing season is longer than 92% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is typical for zone 9b, where the median is Feb 20.
- The weather station records an average of 14 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 21 |
| 50% (median) | February 19 |
| 10% (safe for tender plants) | March 15 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 13 |
| 50% (median) | December 3 |
| 90% (late) | January 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 Houston, TX
Frost dates for 77068 — Houston, TX — last frost Feb 19, first frost Dec 3, zone 9b. whenisthelastfrost.com
When to plant vegetables in Houston, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 27 – Dec 11 | Jan 22 – Feb 5 | — | — |
| Peppers | Dec 11 – Dec 25 | Mar 5 – Mar 19 | — | — |
| Eggplant | Dec 11 – Dec 25 | Mar 5 – Mar 19 | — | — |
| Tomatoes | Dec 25 – Jan 8 | Feb 26 – Mar 12 | — | — |
| Lettuce | Dec 25 – Jan 8 | Jan 29 – Feb 12 | Jan 22 – Feb 26 | Oct 8 – Nov 5 |
| Kale | Dec 25 – Jan 8 | Jan 22 – Feb 5 | Jan 22 – Feb 5 | Sep 24 – Oct 15 |
| Broccoli | Dec 25 – Jan 8 | Feb 5 – Feb 19 | — | Aug 27 – Sep 17 |
| Cabbage | Dec 25 – Jan 8 | Jan 29 – Feb 12 | — | Aug 27 – Sep 17 |
| Cauliflower | Dec 25 – Jan 8 | Feb 5 – Feb 19 | — | Aug 27 – Sep 17 |
| Okra | Jan 8 – Jan 22 | Mar 12 – Mar 26 | Mar 12 – Mar 26 | — |
| Basil | Jan 8 – Jan 22 | Feb 26 – Mar 12 | — | — |
| Peas | — | — | Jan 8 – Jan 29 | Sep 10 – Oct 1 |
| Spinach | — | — | Jan 8 – Jan 29 | Oct 8 – Oct 29 |
| Radishes | — | — | Jan 15 – Feb 26 | Oct 22 – Nov 12 |
| Cucumbers | Jan 22 – Jan 29 | Mar 5 – Mar 12 | Feb 26 – Mar 12 | Sep 17 – Oct 1 |
| Zucchini & Summer Squash | Jan 22 – Jan 29 | — | Feb 26 – Mar 12 | Sep 24 – Oct 8 |
| Winter Squash & Pumpkins | Jan 22 – Jan 29 | — | Feb 26 – Mar 12 | — |
| Melons & Watermelon | Jan 22 – Jan 29 | Mar 5 – Mar 19 | — | — |
| Carrots | — | — | Jan 29 – Feb 26 | Sep 10 – Sep 24 |
| Beets | — | — | Jan 29 – Feb 26 | Sep 24 – Oct 8 |
| Potatoes | — | — | Jan 29 – Feb 19 | — |
| Swiss Chard | — | — | Feb 5 – Mar 5 | Sep 24 – Oct 8 |
| Cilantro | — | — | Feb 5 – Feb 26 | Oct 8 – Oct 29 |
| Green Beans | — | — | Feb 26 – Mar 19 | Sep 17 – Oct 1 |
| Sweet Corn | — | — | Feb 26 – Mar 12 | — |
| Sweet Potatoes | — | Mar 5 – Mar 26 | — | — |
| Garlic | — | — | — | Nov 19 – Dec 24 |
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 Houston Hooks Mem Ap, TX weather station, 9 km away (elevation 151 ft (46 m)).
ZIP codes in Houston: 77001 77002 77003 77004 77005 77006 77007 77008 77009 77010 77011 77012 77013 77014 77015 77016 77017 77018 77019 77020 77021 77022 77023 77024 77025 77026 77027 77028 77029 77030 77031 77032 77033 77034 77035 77036 77037 77038 77039 77040 77041 77042 77043 77044 77045 77046 77047 77048 77049 77050 77051 77052 77053 77054 77055 77056 77057 77058 77059 77060 …
Frost dates near Houston
- Spring Feb 19 · Dec 3
- Hufsmith Feb 19 · Dec 3
- Tomball Feb 19 · Dec 3
- Cypress Feb 19 · Dec 3
- North Houston Feb 13 · Dec 9
- Humble Feb 13 · Dec 9
- Pinehurst Feb 19 · Dec 3
- Porter Feb 13 · Dec 9
Frequently asked questions
When is the last frost in Houston, TX?
The median last spring frost in Houston, TX is February 19. There is still about a 10% chance of frost after March 15, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Houston, TX?
The median first fall frost is December 3, with about a 10% chance of frost before November 13.
How long is the growing season in Houston, TX?
About 287 days between the median last spring frost and first fall frost.
What planting zone is Houston, TX?
Houston, TX is in USDA hardiness zone 9b.