Susanville, CA 96137 Frost Dates
When can you plant in Susanville, CA?
Around 05/18 is the usual last spring frost, about 263 days away. The first fall frost typically arrives around 10/08, about 143 frost-free days later.
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.
What to do before the first frost
About 6 weeks of growing season left in Susanville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Susanville's last frost
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/30 and you're betting against frost in roughly 9 years out of 10. 06/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Susanville compares
At roughly 143 frost-free days, Susanville places 36,511 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,443 of 2,555.
Learn more
local microclimates covers what one yard in Susanville can differ from the 96137 normal. zone vs. frost date covers why Zone 7a and Susanville's frost date answer different questions.