Point Arena, CA 95468 Frost Dates
Frost dates for Point Arena, CA, ZIP 95468
The last spring frost here typically falls around 03/05, about 189 days from today. The first fall frost typically arrives around 11/21, about 259 frost-free days later.
The USDA Plant Hardiness Zone Map puts Point Arena in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 9b around Point Arena has about 12 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 03/05 isn't a guarantee
03/05 is the middle of 30 years of NOAA records, not a promise. Plant by 01/29 and you're betting against frost in roughly 9 years out of 10. 04/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Point Arena compares
Point Arena's growing season runs about 259 days, ranking 6,608 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,056 of 2,555.
Learn more
zone vs. frost date explains why Zone 9b and Point Arena's frost date answer different questions, and the frost range explains how to read the range around Point Arena's dates instead of trusting one.