Jackson, CA 95245 Frost Dates
When can you plant in Jackson, CA?
The last spring frost here typically falls around 01/22, about 147 days from today. The first fall frost typically arrives around 12/17, about 332 frost-free days later.
The USDA Plant Hardiness Zone Map puts Jackson in Zone 9a (20 to 25°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
About 16 weeks of growing season left in Jackson before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Jackson's last frost
01/22 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 and you're betting against frost in roughly 9 years out of 10. 12/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jackson compares
About 332 days separate Jackson's last and first frost, putting it 2,888 of 40,283 ZIP codes nationally. Within CA, it ranks 1,300 of 2,555.
Learn more
the frost range covers how to read the range around Jackson's dates instead of trusting one. local microclimates covers what one yard in Jackson can differ from the 95245 normal.