Two Rivers, WI 54241 Frost Dates
Frost dates for Two Rivers, WI, ZIP 54241
The last spring frost here typically falls around 04/27, about 242 days from today. The first fall frost typically arrives around 10/21, about 175 frost-free days later.
Two Rivers sits in USDA Zone 5b (-15 to -10°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 5b around Two Rivers has about 8 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 Two Rivers's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Two Rivers compares
About 175 days separate Two Rivers's last and first frost, putting it 26,795 of 40,283 ZIP codes nationally. Within WI, it ranks 86 of 860.
Learn more
zone vs. frost date explains why Zone 5b and Two Rivers's frost date answer different questions, and the frost range explains how to read the range around Two Rivers's dates instead of trusting one.