Dinuba, CA 93618 Frost Dates
When can you plant in Dinuba, CA?
The last spring frost here typically falls around 01/23, about 148 days from today. The first fall frost typically arrives around 12/13, about 328 frost-free days later.
Dinuba 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 15 weeks of growing season left in Dinuba before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Dinuba's last frost
01/23 is the middle of 30 years of NOAA records, not a promise. Plant by 02/27 and you're betting against frost in roughly 9 years out of 10. 12/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dinuba compares
About 328 days separate Dinuba's last and first frost, putting it 3,182 of 40,283 ZIP codes nationally. Within CA, it ranks 1,363 of 2,555.
Learn more
local microclimates covers what one yard in Dinuba can differ from the 93618 normal. zone vs. frost date covers why Zone 9b and Dinuba's frost date answer different questions.