Frost Dates for Big Bear City, CA 92314

Last spring frost May 13 · First fall frost October 25 · 165 frost-free days · USDA Zone 7a

Frost probability for 92314

Frost10%50%90%
Spring (last frost)June 8May 13April 17
Fall (first frost)October 9October 25November 11

Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (35.6 km away); the 50% date is the median year.

Month by month in Big Bear City

MonthWhat to do
JanuaryPlan your garden layout and order seeds. Research varieties suited to your frost dates.
FebruaryStart the slowest-growing crops indoors: onions, leeks, and celery (10–12 weeks before last frost).
MarchStart peppers and eggplant indoors 8–10 weeks before your last frost (around May 13). Start tomatoes about two weeks later, 6–8 weeks before last frost.
AprilStart herbs, basil, and squash indoors (4–6 weeks before frost). Direct sow peas, spinach, and lettuce if soil is workable.
MayLast frost around May 13. Transplant cold-hardy crops (broccoli, kale, cabbage). Harden off tomato and pepper seedlings.
JuneFrost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini.
JulySuccession plant lettuce and greens. Keep beds weeded and watered consistently.
AugustHarvest regularly to encourage production. Monitor for pests and disease.
SeptemberFirst fall frost approaching (around October 25). Transplant fall brassicas. Sow spinach, arugula, and radishes.
OctoberFirst frost around October 25. Harvest tomatoes and peppers before frost. Cover cold-hardy crops with row covers to extend the season.
NovemberHarvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year.
DecemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.

What grows in a 165-day season

Frequently Asked Questions

What is the last frost date for Big Bear City, CA (ZIP 92314)?

The median last spring frost date for Big Bear City, CA (ZIP code 92314) is around May 13. 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 Big Bear City, CA?

The median first fall frost date for Big Bear City, CA is around October 25. 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 Big Bear City, CA?

The frost-free growing season in Big Bear City is about 165 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 Big Bear City, CA?

Based on frost date patterns, Big Bear City falls approximately in 7a. 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 Big Bear City, CA?

Start tomato seeds indoors 6–8 weeks before your last frost date (around May 13). For Big Bear City, that's roughly March 18 to April 1. Transplant outdoors 1–2 weeks after your last frost.

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