Frost dates for 77449 — Katy, TX
Frost is light and occasional here — typically a few cold nights around midwinter (about 10 a year). Cover tender plants when frost is forecast.
How Katy compares
- In a typical year, frost nights in Katy fall between December 11 and February 2. In 1 year in 10 the first frost comes as early as November 20, or the last frost as late as March 7.
- Nearby Cypress, TX, 14 km away, has a regular frost season (last frost Feb 19), a reminder of how much elevation and distance from the coast matter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 28 |
| 50% (median) | February 2 |
| 10% (safe for tender plants) | March 7 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 20 |
| 50% (median) | December 11 |
| 90% (late) | January 16 |
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 Katy, TX
Frost dates for 77449 — Katy, TX — last frost Feb 2, first frost Dec 11, zone 9b. 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 Katy, TX
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Nov 10 – Nov 24 | Jan 5 – Jan 19 | — | — |
| Peppers | Nov 24 – Dec 8 | Feb 16 – Mar 2 | — | — |
| Eggplant | Nov 24 – Dec 8 | Feb 16 – Mar 2 | — | — |
| Tomatoes | Dec 8 – Dec 22 | Feb 9 – Feb 23 | — | — |
| Lettuce | Dec 8 – Dec 22 | Jan 12 – Jan 26 | Jan 5 – Feb 9 | Oct 16 – Nov 13 |
| Kale | Dec 8 – Dec 22 | Jan 5 – Jan 19 | Jan 5 – Jan 19 | Oct 2 – Oct 23 |
| Broccoli | Dec 8 – Dec 22 | Jan 19 – Feb 2 | — | Sep 4 – Sep 25 |
| Cabbage | Dec 8 – Dec 22 | Jan 12 – Jan 26 | — | Sep 4 – Sep 25 |
| Cauliflower | Dec 8 – Dec 22 | Jan 19 – Feb 2 | — | Sep 4 – Sep 25 |
| Okra | Dec 22 – Jan 5 | Feb 23 – Mar 9 | Feb 23 – Mar 9 | — |
| Basil | Dec 22 – Jan 5 | Feb 9 – Feb 23 | — | — |
| Peas | — | — | Dec 22 – Jan 12 | Sep 18 – Oct 9 |
| Spinach | — | — | Dec 22 – Jan 12 | Oct 16 – Nov 6 |
| Radishes | — | — | Dec 29 – Feb 9 | Oct 30 – Nov 20 |
| Cucumbers | Jan 5 – Jan 12 | Feb 16 – Feb 23 | Feb 9 – Feb 23 | Sep 25 – Oct 9 |
| Zucchini & Summer Squash | Jan 5 – Jan 12 | — | Feb 9 – Feb 23 | Oct 2 – Oct 16 |
| Winter Squash & Pumpkins | Jan 5 – Jan 12 | — | Feb 9 – Feb 23 | — |
| Melons & Watermelon | Jan 5 – Jan 12 | Feb 16 – Mar 2 | — | — |
| Carrots | — | — | Jan 12 – Feb 9 | Sep 18 – Oct 2 |
| Beets | — | — | Jan 12 – Feb 9 | Oct 2 – Oct 16 |
| Potatoes | — | — | Jan 12 – Feb 2 | — |
| Swiss Chard | — | — | Jan 19 – Feb 16 | Oct 2 – Oct 16 |
| Cilantro | — | — | Jan 19 – Feb 9 | Oct 16 – Nov 6 |
| Green Beans | — | — | Feb 9 – Mar 2 | Sep 25 – Oct 9 |
| Sweet Corn | — | — | Feb 9 – Feb 23 | — |
| Sweet Potatoes | — | Feb 16 – Mar 9 | — | — |
| Garlic | — | — | — | Nov 27 – Jan 1 |
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 Sugarland Mem, TX weather station, 25 km away (elevation 82 ft (25 m)).
ZIP codes in Katy: 77449 77450 77491 77492 77493 77494
Frost dates near Katy
- Barker Feb 2 · Dec 11
- Cypress Feb 19 · Dec 3
- Alief Feb 2 · Dec 11
- Fulshear Feb 28 · Nov 30
- Brookshire Feb 28 · Nov 30
- Richmond Feb 9 · Dec 13
- Pattison Feb 28 · Nov 30
- Sugar Land Feb 9 · Dec 13
Frequently asked questions
When is the last frost in Katy, TX?
The median last spring frost in Katy, TX is February 2. There is still about a 10% chance of frost after March 7, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Katy, TX?
The median first fall frost is December 11, with about a 10% chance of frost before November 20.
How long is the growing season in Katy, TX?
About 312 days between the median last spring frost and first fall frost.
What planting zone is Katy, TX?
Katy, TX is in USDA hardiness zone 9b.