Frost Dates for Killeen, TX 76549

Last spring frost March 24 · First fall frost November 13 · 234 frost-free days · USDA Zone 8b

Frost probability for 76549

Frost10%50%90%
Spring (last frost)April 14March 24March 4
Fall (first frost)October 29November 13November 29

Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (45.9 km away); the 50% date is the median year.

Frost dates by ZIP code in Killeen, TX

ZIPLast spring frost (50%)First fall frost (50%)Zone
76549March 24November 138b
76542March 11November 228b
76543March 11November 228b
76541March 11November 228b

Month by month in Killeen

MonthWhat to do
JanuaryStart peppers and eggplant indoors 8–10 weeks before your last frost (around March 24). Start tomatoes about two weeks later, 6–8 weeks before last frost.
FebruaryStart herbs, basil, and squash indoors (4–6 weeks before frost). Direct sow peas, spinach, and lettuce if soil is workable.
MarchLast frost around March 24. Transplant cold-hardy crops (broccoli, kale, cabbage). Harden off tomato and pepper seedlings.
AprilFrost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini.
MaySuccession plant lettuce and greens. Keep beds weeded and watered consistently.
JuneHarvest regularly to encourage production. Monitor for pests and disease.
JulyMidsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall.
AugustDirect sow carrots and beets for fall harvest. Start fall broccoli and kale indoors.
SeptemberDirect sow carrots and beets for fall harvest. Start fall broccoli and kale indoors.
OctoberFirst fall frost approaching (around November 13). Transplant fall brassicas. Sow spinach, arugula, and radishes.
NovemberFirst frost around November 13. Harvest tomatoes and peppers before frost. Cover cold-hardy crops with row covers to extend the season.
DecemberHarvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year.

What grows in a 234-day season

Frequently Asked Questions

What is the last frost date for Killeen, TX (ZIP 76549)?

The median last spring frost date for Killeen, TX (ZIP code 76549) is around March 24. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area.

What is the first fall frost date in Killeen, TX?

The median first fall frost date for Killeen, TX is around November 13. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses.

How long is the growing season in Killeen, TX?

The frost-free growing season in Killeen is about 234 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side.

What USDA hardiness zone is Killeen, TX?

Based on frost date patterns, Killeen falls approximately in 8b. USDA hardiness zones are determined by average annual minimum winter temperatures and guide both plant selection and planting timing for your location.

When should I start tomatoes indoors in Killeen, TX?

Start tomato seeds indoors 6–8 weeks before your last frost date (around March 24). For Killeen, that's roughly January 28 to February 11. Transplant outdoors 1–2 weeks after your last frost.

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