Roseville, CA 95843 Frost Dates
When can you plant in Roseville, CA?
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.
Roseville sits in USDA Zone 9b (25 to 30°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 16 weeks of growing season left in Roseville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Roseville's last frost
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 Roseville compares
Roseville's growing season runs about 341 days, ranking 2,583 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,140 of 2,555.
Learn more
zone vs. frost date covers why Zone 9b and Roseville's frost date answer different questions. the frost range covers how to read the range around Roseville's dates instead of trusting one.