Lincoln, CA 95659 Frost Dates
95659, near Lincoln, CA: the frost window
Around 02/22 is the usual last spring frost, about 178 days away. Fall's first freeze usually shows up around 11/24, roughly 277 days after the last spring frost.
Lincoln 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
Lincoln's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/22 isn't a guarantee
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.
Lincoln against the rest of the dataset
About 277 days separate Lincoln's last and first frost, putting it 4,961 of 40,283 ZIP codes nationally. Within CA, it ranks 1,816 of 2,555.
Learn more
Two guides worth reading on 95659: local microclimates, on what one yard in Lincoln can differ from the 95659 normal, and zone vs. frost date, on why Zone 9b and Lincoln's frost date answer different questions.