FrostDateCheck

Blue Lake, CA 95534 Frost Dates

When can you plant in Blue Lake, CA?

Zone 9b

Around 02/22 is the usual last spring frost, about 178 days away. The first fall frost typically arrives around 12/07, about 293 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 Blue Lake, not a forecast for this year.

What to do before the first frost

About 14 weeks of growing season left in Blue Lake before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Blue Lake's last frost

02/22 is the middle of 30 years of NOAA records, not a promise. Plant by 03/23 and you're betting against frost in roughly 9 years out of 10. 12/31 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Blue Lake compares

At roughly 293 frost-free days, Blue Lake places 4,300 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,673 of 2,555.

Learn more

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