Shiocton, WI 54170 Frost Dates
Frost dates for Shiocton, WI, ZIP 54170
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/06, about 154 frost-free days later.
Shiocton sits in USDA Zone 5a (-20 to -15°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 5a around Shiocton 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.
Why 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 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 Shiocton compares
Shiocton's growing season runs about 154 days, ranking 34,383 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 494 of 860.
Learn more
the frost range explains how to read the range around Shiocton's dates instead of trusting one, and local microclimates explains what one yard in Shiocton can differ from the 54170 normal.