Susanville, CA 96132 Frost Dates
Susanville, CA: when does the frost end?
Typically, the last spring freeze lands around 05/28, roughly 273 days out. Fall's first freeze usually shows up around 09/29, roughly 125 days after the last spring frost.
Susanville sits in USDA Zone 6a (-10 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
With roughly 5 weeks until Susanville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Susanville's last frost
05/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/16 and only about 1 year in 10 sees frost after that.
Susanville against the rest of the dataset
About 125 days separate Susanville's last and first frost, putting it 38,748 of 40,283 ZIP codes nationally. Within CA, it ranks 2,479 of 2,555.
Learn more
Before leaning on 96132's figures: the frost range explains how to read the range around Susanville's dates instead of trusting one, while local microclimates explains what one yard in Susanville can differ from the 96132 normal.