Chappell Hill, TX frost dates
How Chappell Hill compares
- In 8 years out of 10, the last spring frost in Chappell Hill falls between January 31 and March 20, a 48-day window. The first fall frost falls between November 8 and December 23.
- The median last frost is 13 days earlier than the Texas median of Mar 15.
- Its 273-day growing season is longer than 83% of the 1,316 Texas places with a regular frost season (state median 245 days).
- The last frost is typical for zone 9a, where the median is Mar 3.
- The weather station records an average of 18 nights a year at or below 32°F.
- Compared with College Station, TX, 48 km away, the last frost here is 3 days later than there and the growing season is 3 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 31 |
| 50% (median) | March 2 |
| 10% (safe for tender plants) | March 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 8 |
| 50% (median) | November 30 |
| 90% (late) | December 23 |
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 Chappell Hill, TX
Chappell Hill, TX frost dates — last frost Mar 2, first frost Nov 30, zone 9a. whenisthelastfrost.com
When to plant vegetables in Chappell Hill, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Dec 8 – Dec 22 | Feb 2 – Feb 16 | — | — |
| Peppers | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Eggplant | Dec 22 – Jan 5 | Mar 16 – Mar 30 | — | — |
| Tomatoes | Jan 5 – Jan 19 | Mar 9 – Mar 23 | — | — |
| Lettuce | Jan 5 – Jan 19 | Feb 9 – Feb 23 | Feb 2 – Mar 9 | Oct 5 – Nov 2 |
| Kale | Jan 5 – Jan 19 | Feb 2 – Feb 16 | Feb 2 – Feb 16 | Sep 21 – Oct 12 |
| Broccoli | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 24 – Sep 14 |
| Cabbage | Jan 5 – Jan 19 | Feb 9 – Feb 23 | — | Aug 24 – Sep 14 |
| Cauliflower | Jan 5 – Jan 19 | Feb 16 – Mar 2 | — | Aug 24 – Sep 14 |
| Okra | Jan 19 – Feb 2 | Mar 23 – Apr 6 | Mar 23 – Apr 6 | — |
| Basil | Jan 19 – Feb 2 | Mar 9 – Mar 23 | — | — |
| Peas | — | — | Jan 19 – Feb 9 | Sep 7 – Sep 28 |
| Spinach | — | — | Jan 19 – Feb 9 | Oct 5 – Oct 26 |
| Radishes | — | — | Jan 26 – Mar 9 | Oct 19 – Nov 9 |
| Cucumbers | Feb 2 – Feb 9 | Mar 16 – Mar 23 | Mar 9 – Mar 23 | Sep 14 – Sep 28 |
| Zucchini & Summer Squash | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | Sep 21 – Oct 5 |
| Winter Squash & Pumpkins | Feb 2 – Feb 9 | — | Mar 9 – Mar 23 | — |
| Melons & Watermelon | Feb 2 – Feb 9 | Mar 16 – Mar 30 | — | — |
| Carrots | — | — | Feb 9 – Mar 9 | Sep 7 – Sep 21 |
| Beets | — | — | Feb 9 – Mar 9 | Sep 21 – Oct 5 |
| Potatoes | — | — | Feb 9 – Mar 2 | — |
| Swiss Chard | — | — | Feb 16 – Mar 16 | Sep 21 – Oct 5 |
| Cilantro | — | — | Feb 16 – Mar 9 | Oct 5 – Oct 26 |
| Green Beans | — | — | Mar 9 – Mar 30 | Sep 14 – Sep 28 |
| Sweet Corn | — | — | Mar 9 – Mar 23 | — |
| Sweet Potatoes | — | Mar 16 – Apr 6 | — | — |
| Garlic | — | — | — | Nov 16 – Dec 21 |
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 Brenham, TX weather station, 16 km away (elevation 312 ft (95 m)).
Frost dates near Chappell Hill
- Washington Mar 7 · Nov 19
- Brenham Mar 2 · Nov 30
- Kenney Feb 28 · Dec 2
- Hempstead Feb 28 · Dec 2
- Bellville Feb 28 · Dec 2
- Navasota Mar 7 · Nov 19
- Prairie View Feb 28 · Dec 2
- Bleiblerville Mar 2 · Nov 30
- Millican Mar 7 · Nov 19
- Industry Mar 2 · Nov 30
Frequently asked questions
When is the last frost in Chappell Hill, TX?
The median last spring frost in Chappell Hill, TX is March 2. There is still about a 10% chance of frost after March 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Chappell Hill, TX?
The median first fall frost is November 30, with about a 10% chance of frost before November 8.
How long is the growing season in Chappell Hill, TX?
About 273 days between the median last spring frost and first fall frost.
What planting zone is Chappell Hill, TX?
Chappell Hill, TX is in USDA hardiness zone 9a.