Willows, CA 95988 Frost Dates
When can you plant in Willows, CA?
Typically, the last spring freeze lands around 02/25, roughly 181 days out. The first fall frost typically arrives around 12/02, about 279 frost-free days later.
Willows 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.
What to do before the first frost
About 14 weeks of growing season left in Willows before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Willows's last frost
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/19 and you're betting against frost in roughly 9 years out of 10. 04/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Willows compares
At roughly 279 frost-free days, Willows places 4,893 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,801 of 2,555.
Learn more
the frost range covers how to read the range around Willows's dates instead of trusting one. local microclimates covers what one yard in Willows can differ from the 95988 normal.