Escalon, CA 95320 Frost Dates
Frost dates for Escalon, CA, ZIP 95320
Around 01/31 is the usual last spring frost, about 156 days away. The first fall frost typically arrives around 12/05, about 312 frost-free days later.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Escalon, not a forecast for this year.
What to do before the first frost
Zone 9b around Escalon has about 14 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.
Why 01/31 isn't a guarantee
01/31 is the middle of 30 years of NOAA records, not a promise. Plant by 02/25 and you're betting against frost in roughly 9 years out of 10. 12/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Escalon compares
About 312 days separate Escalon's last and first frost, putting it 3,504 of 40,283 ZIP codes nationally. Within CA, it ranks 1,461 of 2,555.
Learn more
zone vs. frost date explains why Zone 9b and Escalon's frost date answer different questions, and the frost range explains how to read the range around Escalon's dates instead of trusting one.