Frost Dates for Carpinteria, CA 93013

Last spring frost January 10 · First fall frost November 23 · 317 frost-free days · USDA Zone 10b

Frost probability for 93013

Frost10%50%90%
Spring (last frost)February 18January 10—
Fall (first frost)November 18November 23—

Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (33.2 km away); the 50% date is the median year.

Month by month in Carpinteria

MonthWhat to do
JanuaryLast frost around January 10. Transplant cold-hardy crops (broccoli, kale, cabbage). Harden off tomato and pepper seedlings.
FebruaryFrost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini.
MarchSuccession plant lettuce and greens. Keep beds weeded and watered consistently.
AprilHarvest regularly to encourage production. Monitor for pests and disease.
MayMidsummer: harvest beans, zucchini, cucumbers. Start brassica seeds indoors for fall.
JuneDirect sow carrots and beets for fall harvest. Start fall broccoli and kale indoors.
JulyDirect sow carrots and beets for fall harvest. Start fall broccoli and kale indoors.
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 23). Transplant fall brassicas. Sow spinach, arugula, and radishes.
NovemberFirst frost around November 23. 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 317-day season

Frequently Asked Questions

What is the last frost date for Carpinteria, CA (ZIP 93013)?

The median last spring frost date for Carpinteria, CA (ZIP code 93013) is around January 10. 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 Carpinteria, CA?

The median first fall frost date for Carpinteria, CA is around November 23. 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 Carpinteria, CA?

The frost-free growing season in Carpinteria is about 317 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 Carpinteria, CA?

Based on frost date patterns, Carpinteria falls approximately in 10b. 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 Carpinteria, CA?

Start tomato seeds indoors 6–8 weeks before your last frost date (around January 10). For Carpinteria, that's roughly November 15 to November 29. Transplant outdoors 1–2 weeks after your last frost.

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