FrostDateCheck

Santa Cruz, CA 95064 Frost Dates

When can you plant in Santa Cruz, CA?

Zone 9b

Typically, the last spring freeze lands around 01/29, roughly 154 days out. The first fall frost typically arrives around 12/13, about 323 frost-free days later.

Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Santa Cruz, not a forecast for this year.

What to do before the first frost

About 15 weeks of growing season left in Santa Cruz before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

01/29 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 12/25 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Santa Cruz compares

About 323 days separate Santa Cruz's last and first frost, putting it 3,256 of 40,283 ZIP codes nationally. Within CA, it ranks 1,386 of 2,555.

Learn more

zone vs. frost date covers why Zone 9b and Santa Cruz's frost date answer different questions. the frost range covers how to read the range around Santa Cruz's dates instead of trusting one.