Susanville, CA 96127 Frost Dates
96127, near Susanville, CA: the frost window
The last spring frost here typically falls around 05/18, about 263 days from today. Fall's first freeze usually shows up around 10/08, roughly 143 days after the last spring frost.
Susanville sits in USDA Zone 7a (0 to 5°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
Susanville'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 05/18 isn't a guarantee
05/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/09 and only about 1 year in 10 sees frost after that.
Susanville against the rest of the dataset
Susanville's growing season runs about 143 days, ranking 36,509 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,441 of 2,555.
Learn more
Two guides worth reading on 96127: zone vs. frost date, on why Zone 7a and Susanville's frost date answer different questions, and the frost range, on how to read the range around Susanville's dates instead of trusting one.