West Sacramento, CA 95691 Frost Dates
95691, near West Sacramento, CA: the frost window
Typically, the last spring freeze lands around 02/02, roughly 158 days out. Fall's first freeze usually shows up around 12/02, roughly 301 days after the last spring frost.
West Sacramento 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
West Sacramento's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/02 isn't a guarantee
02/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/05 and only about 1 year in 10 sees frost after that.
West Sacramento against the rest of the dataset
About 301 days separate West Sacramento's last and first frost, putting it 3,909 of 40,283 ZIP codes nationally. Within CA, it ranks 1,628 of 2,555.
Learn more
Two guides worth reading on 95691: zone vs. frost date, on why Zone 9b and West Sacramento's frost date answer different questions, and the frost range, on how to read the range around West Sacramento's dates instead of trusting one.