Kimball, MN 55353 Frost Dates
Frost dates for Kimball, MN, ZIP 55353
Around 05/02 is the usual last spring frost, about 247 days away. The first fall frost typically arrives around 10/05, about 156 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 Kimball, not a forecast for this year.
What to do before the first frost
Zone 4b around Kimball 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.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kimball compares
At roughly 156 frost-free days, Kimball places 33,736 of 40,283 ZIP codes in this dataset. Within MN, it ranks 323 of 943.
Learn more
local microclimates explains what one yard in Kimball can differ from the 55353 normal, and zone vs. frost date explains why Zone 4b and Kimball's frost date answer different questions.