Montague, CA 96064 Frost Dates
96064, near Montague, CA: the frost window
Around 05/12 is the usual last spring frost, about 257 days away. Fall's first freeze usually shows up around 10/08, roughly 148 days after the last spring frost.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Montague, not a forecast for this year.
Stretching the season past the first frost
Montague's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/12 isn't a guarantee
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Montague against the rest of the dataset
About 148 days separate Montague's last and first frost, putting it 35,746 of 40,283 ZIP codes nationally. Within CA, it ranks 2,436 of 2,555.
Learn more
Two guides worth reading on 96064: local microclimates, on what one yard in Montague can differ from the 96064 normal, and zone vs. frost date, on why Zone 7b and Montague's frost date answer different questions.