Warrens, WI 54643 Frost Dates
Frost dates for Warrens, WI, ZIP 54643
The last spring frost here typically falls around 05/06, about 251 days from today. The first fall frost typically arrives around 10/03, about 148 frost-free days later.
Warrens sits in USDA Zone 4b (-25 to -20°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
Zone 4b around Warrens 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 04/24 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Warrens compares
Warrens's growing season runs about 148 days, ranking 35,779 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 622 of 860.
Learn more
the frost range explains how to read the range around Warrens's dates instead of trusting one, and local microclimates explains what one yard in Warrens can differ from the 54643 normal.