Blue Lake, CA 95525 Frost Dates
Frost dates for Blue Lake, CA, ZIP 95525
The last spring frost here typically falls around 03/08, about 192 days from today. The first fall frost typically arrives around 11/30, about 262 frost-free days later.
Zone 9a (20 to 25°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 9a around Blue Lake has about 13 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.
Why 03/08 isn't a guarantee
03/08 is the middle of 30 years of NOAA records, not a promise. Plant by 01/13 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Blue Lake compares
Blue Lake's growing season runs about 262 days, ranking 6,240 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,029 of 2,555.
Learn more
the frost range explains how to read the range around Blue Lake's dates instead of trusting one, and local microclimates explains what one yard in Blue Lake can differ from the 95525 normal.