Holloway, MN 56249 Frost Dates
Frost dates for Holloway, MN, ZIP 56249
Around 05/03 is the usual last spring frost, about 248 days away. The first fall frost typically arrives around 10/02, about 151 frost-free days later.
The USDA Plant Hardiness Zone Map puts Holloway in Zone 4b (-25 to -20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 4b around Holloway 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.
How much risk comes with planting early here
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/20 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Holloway compares
Holloway's growing season runs about 151 days, ranking 35,207 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 509 of 943.
Learn more
local microclimates explains what one yard in Holloway can differ from the 56249 normal, and zone vs. frost date explains why Zone 4b and Holloway's frost date answer different questions.