FrostDateCheck

Luverne, MN 56146 Frost Dates

Frost dates for Luverne, MN, ZIP 56146

Zone 5a

The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/04, about 156 frost-free days later.

Luverne 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 Luverne 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

05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Luverne compares

Luverne's growing season runs about 156 days, ranking 33,575 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 311 of 943.

Learn more

local microclimates explains what one yard in Luverne can differ from the 56146 normal, and zone vs. frost date explains why Zone 5a and Luverne's frost date answer different questions.