Delano, CA 93216 Frost Dates
Frost dates for Delano, CA, ZIP 93216
The last spring frost here typically falls around 01/31, about 156 days from today. The first fall frost typically arrives around 12/08, about 309 frost-free days later.
Delano 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
Zone 9b around Delano has about 15 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
01/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/05 and you're betting against frost in roughly 9 years out of 10. 12/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Delano compares
At roughly 309 frost-free days, Delano places 3,635 of 40,283 ZIP codes in this dataset. Within CA, it ranks 1,486 of 2,555.
Learn more
local microclimates explains what one yard in Delano can differ from the 93216 normal, and zone vs. frost date explains why Zone 9b and Delano's frost date answer different questions.