Citrus Heights, CA 95661 Frost Dates
Frost dates for Citrus Heights, CA, ZIP 95661
Typically, the last spring freeze lands around 01/12, roughly 137 days out. The first fall frost typically arrives around 12/16, about 341 frost-free days later.
The USDA Plant Hardiness Zone Map puts Citrus Heights 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 Citrus Heights has about 16 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 01/12 isn't a guarantee
01/12 is the middle of 30 years of NOAA records, not a promise. Plant by 02/08 and you're betting against frost in roughly 9 years out of 10. 12/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Citrus Heights compares
Citrus Heights's growing season runs about 341 days, ranking 2,592 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,149 of 2,555.
Learn more
local microclimates explains what one yard in Citrus Heights can differ from the 95661 normal, and zone vs. frost date explains why Zone 9b and Citrus Heights's frost date answer different questions.