Fremont, CA 94538 Frost Dates
When can you plant in Fremont, CA?
Around 01/07 is the usual last spring frost, about 132 days away. The first fall frost typically arrives around 12/22, about 353 frost-free days later.
Zone 10a (30 to 35°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 Fremont, not a forecast for this year.
What to do before the first frost
About 17 weeks of growing season left in Fremont before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Fremont's last frost
01/07 is the middle of 30 years of NOAA records, not a promise. Plant by 02/07 and you're betting against frost in roughly 9 years out of 10. 12/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fremont compares
At roughly 353 frost-free days, Fremont places 2,208 of 40,283 ZIP codes in this dataset. Within CA, it ranks 988 of 2,555.
Learn more
the frost range covers how to read the range around Fremont's dates instead of trusting one. local microclimates covers what one yard in Fremont can differ from the 94538 normal.