Blue Lake, CA 95550 Frost Dates
Frost dates for Blue Lake, CA, ZIP 95550
The last spring frost here typically falls around 02/22, about 178 days from today. 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
Zone 9b around Blue Lake has about 14 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
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
About 293 days separate Blue Lake's last and first frost, putting it 4,301 of 40,283 ZIP codes nationally. Within CA, it ranks 1,674 of 2,555.
Learn more
local microclimates explains what one yard in Blue Lake can differ from the 95550 normal, and zone vs. frost date explains why Zone 9b and Blue Lake's frost date answer different questions.