Roseville, CA 95668 Frost Dates
Roseville, CA: when does the frost end?
Typically, the last spring freeze lands around 02/22, roughly 178 days out. Fall's first freeze usually shows up around 11/24, roughly 277 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 13 weeks until Roseville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
02/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/01 and only about 1 year in 10 sees frost after that.
Roseville against the rest of the dataset
Roseville's growing season runs about 277 days, ranking 4,944 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,810 of 2,555.
Learn more
Before leaning on 95668's figures: the frost range explains how to read the range around Roseville's dates instead of trusting one, while local microclimates explains what one yard in Roseville can differ from the 95668 normal.