Nevada City, CA 95930 Frost Dates
Nevada City, CA: when does the frost end?
Typically, the last spring freeze lands around 05/04, roughly 249 days out. Fall's first freeze usually shows up around 10/30, roughly 174 days after the last spring frost.
Nevada City sits in USDA Zone 9a (20 to 25°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 9 weeks until Nevada City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/31 and only about 1 year in 10 sees frost after that.
Nevada City against the rest of the dataset
At roughly 174 frost-free days, Nevada City places 27,468 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,373 of 2,555.
Learn more
Before leaning on 95930's figures: the frost range explains how to read the range around Nevada City's dates instead of trusting one, while local microclimates explains what one yard in Nevada City can differ from the 95930 normal.