Frost Dates for Marina, CA 93933

Last spring frost January 22 · First fall frost December 10 · 322 frost-free days · USDA Zone 10a

Frost probability for 93933

Frost10%50%90%
Spring (last frost)March 1January 22November 29
Fall (first frost)November 17December 10January 6

Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (15.5 km away); the 50% date is the median year.

Month by month in Marina

MonthWhat to do
JanuaryLast frost around January 22. 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.
OctoberDirect sow carrots and beets for fall harvest. Start fall broccoli and kale indoors.
NovemberFirst fall frost approaching (around December 10). Transplant fall brassicas. Sow spinach, arugula, and radishes.
DecemberFirst frost around December 10. Harvest tomatoes and peppers before frost. Cover cold-hardy crops with row covers to extend the season.

What grows in a 322-day season

Frequently Asked Questions

What is the last frost date for Marina, CA (ZIP 93933)?

The median last spring frost date for Marina, CA (ZIP code 93933) is around January 22. 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 Marina, CA?

The median first fall frost date for Marina, CA is around December 10. 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 Marina, CA?

The frost-free growing season in Marina is about 322 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 Marina, CA?

Based on frost date patterns, Marina falls approximately in 10a. 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 Marina, CA?

Start tomato seeds indoors 6–8 weeks before your last frost date (around January 22). For Marina, that's roughly November 27 to December 11. Transplant outdoors 1–2 weeks after your last frost.

Nearby and related