Solon Springs, WI 54838 Frost Dates
Frost dates for Solon Springs, WI, ZIP 54838
The last spring frost here typically falls around 05/22, about 267 days from today. The first fall frost typically arrives around 09/26, about 126 frost-free days later.
Solon Springs sits in USDA Zone 4a (-30 to -25°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 4a around Solon Springs has about 4 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
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/06 and you're betting against frost in roughly 9 years out of 10. 06/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Solon Springs compares
At roughly 126 frost-free days, Solon Springs places 38,701 of 40,283 ZIP codes in this dataset. Within WI, it ranks 809 of 860.
Learn more
local microclimates explains what one yard in Solon Springs can differ from the 54838 normal, and zone vs. frost date explains why Zone 4a and Solon Springs's frost date answer different questions.