Fremont, WI 54969 Frost Dates
Frost dates for Fremont, WI, ZIP 54969
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/06, about 153 frost-free days later.
The USDA Plant Hardiness Zone Map puts Fremont in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5a around Fremont has about 6 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.
The actual range around Fremont's last frost
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Fremont compares
At roughly 153 frost-free days, Fremont places 34,587 of 40,283 ZIP codes in this dataset. Within WI, it ranks 511 of 860.
Learn more
zone vs. frost date explains why Zone 5a and Fremont's frost date answer different questions, and the frost range explains how to read the range around Fremont's dates instead of trusting one.