Hutchinson, MN 55350 Frost Dates
Frost dates for Hutchinson, MN, ZIP 55350
Around 04/28 is the usual last spring frost, about 243 days away. The first fall frost typically arrives around 10/08, about 163 frost-free days later.
Zone 4b (-25 to -20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Hutchinson, not a forecast for this year.
What to do before the first frost
Zone 4b around Hutchinson 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.
The actual range around Hutchinson's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 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 Hutchinson compares
About 163 days separate Hutchinson's last and first frost, putting it 31,349 of 40,283 ZIP codes nationally. Within MN, it ranks 160 of 943.
Learn more
the frost range explains how to read the range around Hutchinson's dates instead of trusting one, and local microclimates explains what one yard in Hutchinson can differ from the 55350 normal.