Adelanto, CA 92371 Frost Dates
When can you plant in Adelanto, CA?
Typically, the last spring freeze lands around 05/16, roughly 261 days out. The first fall frost typically arrives around 10/13, about 151 frost-free days later.
Adelanto sits in USDA Zone 8b (15 to 20°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 7 weeks of growing season left in Adelanto before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/16 isn't a guarantee
05/16 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 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 Adelanto compares
At roughly 151 frost-free days, Adelanto places 34,940 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,430 of 2,555.
Learn more
the frost range covers how to read the range around Adelanto's dates instead of trusting one. local microclimates covers what one yard in Adelanto can differ from the 92371 normal.