Frost dates for 77494 — Katy, TX
Frost is light and occasional here — typically a few cold nights around midwinter (about 7 a year). Cover tender plants when frost is forecast.
How Katy compares
- In a typical year, frost nights in Katy fall between December 13 and February 9. In 1 year in 10 the first frost comes as early as November 19, or the last frost as late as March 11.
- Katy shares its weather station with Sugar Land, TX, 23 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | January 13 |
| 50% (median) | February 9 |
| 10% (safe for tender plants) | March 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | November 19 |
| 50% (median) | December 13 |
| 90% (late) | January 13 |
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 77494 — Katy, TX — last frost Feb 9, first frost Dec 13, zone 9a. 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 17 – Dec 1 | Jan 12 – Jan 26 | — | — |
| Peppers | Dec 1 – Dec 15 | Feb 23 – Mar 9 | — | — |
| Eggplant | Dec 1 – Dec 15 | Feb 23 – Mar 9 | — | — |
| Tomatoes | Dec 15 – Dec 29 | Feb 16 – Mar 2 | — | — |
| Lettuce | Dec 15 – Dec 29 | Jan 19 – Feb 2 | Jan 12 – Feb 16 | Oct 18 – Nov 15 |
| Kale | Dec 15 – Dec 29 | Jan 12 – Jan 26 | Jan 12 – Jan 26 | Oct 4 – Oct 25 |
| Broccoli | Dec 15 – Dec 29 | Jan 26 – Feb 9 | — | Sep 6 – Sep 27 |
| Cabbage | Dec 15 – Dec 29 | Jan 19 – Feb 2 | — | Sep 6 – Sep 27 |
| Cauliflower | Dec 15 – Dec 29 | Jan 26 – Feb 9 | — | Sep 6 – Sep 27 |
| Okra | Dec 29 – Jan 12 | Mar 2 – Mar 16 | Mar 2 – Mar 16 | — |
| Basil | Dec 29 – Jan 12 | Feb 16 – Mar 2 | — | — |
| Peas | — | — | Dec 29 – Jan 19 | Sep 20 – Oct 11 |
| Spinach | — | — | Dec 29 – Jan 19 | Oct 18 – Nov 8 |
| Radishes | — | — | Jan 5 – Feb 16 | Nov 1 – Nov 22 |
| Cucumbers | Jan 12 – Jan 19 | Feb 23 – Mar 2 | Feb 16 – Mar 2 | Sep 27 – Oct 11 |
| Zucchini & Summer Squash | Jan 12 – Jan 19 | — | Feb 16 – Mar 2 | Oct 4 – Oct 18 |
| Winter Squash & Pumpkins | Jan 12 – Jan 19 | — | Feb 16 – Mar 2 | — |
| Melons & Watermelon | Jan 12 – Jan 19 | Feb 23 – Mar 9 | — | — |
| Carrots | — | — | Jan 19 – Feb 16 | Sep 20 – Oct 4 |
| Beets | — | — | Jan 19 – Feb 16 | Oct 4 – Oct 18 |
| Potatoes | — | — | Jan 19 – Feb 9 | — |
| Swiss Chard | — | — | Jan 26 – Feb 23 | Oct 4 – Oct 18 |
| Cilantro | — | — | Jan 26 – Feb 16 | Oct 18 – Nov 8 |
| Green Beans | — | — | Feb 16 – Mar 9 | Sep 27 – Oct 11 |
| Sweet Corn | — | — | Feb 16 – Mar 2 | — |
| Sweet Potatoes | — | Feb 23 – Mar 16 | — | — |
| Garlic | — | — | — | Nov 29 – Jan 3 |
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 Sugar Land, TX weather station, 21 km away (elevation 85 ft (26 m)).
ZIP codes in Katy: 77449 77450 77491 77492 77493 77494
Frost dates near Katy
- Fulshear Feb 28 · Nov 30
- Barker Feb 2 · Dec 11
- Richmond Feb 9 · Dec 13
- Simonton Feb 28 · Nov 30
- Brookshire Feb 28 · Nov 30
- Pattison Feb 28 · Nov 30
- Orchard Feb 28 · Nov 30
- Rosenberg 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 9. There is still about a 10% chance of frost after March 11, 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 13, with about a 10% chance of frost before November 19.
How long is the growing season in Katy, TX?
About 307 days between the median last spring frost and first fall frost.
What planting zone is Katy, TX?
Katy, TX is in USDA hardiness zone 9a.