New Richmond, WI 54017 Frost Dates
Frost dates for New Richmond, WI, ZIP 54017
Typically, the last spring freeze lands around 05/06, roughly 251 days out. The first fall frost typically arrives around 10/02, about 148 frost-free days later.
The USDA Plant Hardiness Zone Map puts New Richmond in Zone 4b (-25 to -20°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 4b around New Richmond has about 5 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
05/06 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. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Richmond compares
About 148 days separate New Richmond's last and first frost, putting it 35,691 of 40,283 ZIP codes nationally. Within WI, it ranks 603 of 860.
Learn more
zone vs. frost date explains why Zone 4b and New Richmond's frost date answer different questions, and the frost range explains how to read the range around New Richmond's dates instead of trusting one.