Breckenridge, MN 56520 Frost Dates
Frost dates for Breckenridge, MN, ZIP 56520
Typically, the last spring freeze lands around 05/04, roughly 249 days out. The first fall frost typically arrives around 10/03, about 152 frost-free days later.
Zone 4a (-30 to -25°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 Breckenridge, not a forecast for this year.
What to do before the first frost
Zone 4a around Breckenridge 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 05/04 isn't a guarantee
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 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 Breckenridge compares
At roughly 152 frost-free days, Breckenridge places 34,762 of 40,283 ZIP codes in this dataset. Within MN, it ranks 441 of 943.
Learn more
zone vs. frost date explains why Zone 4a and Breckenridge's frost date answer different questions, and the frost range explains how to read the range around Breckenridge's dates instead of trusting one.