FrostDateCheck

Brooklyn Center, MN 55430 Frost Dates

Frost dates for Brooklyn Center, MN, ZIP 55430

Zone 5a

Around 04/30 is the usual last spring frost, about 245 days away. The first fall frost typically arrives around 10/08, about 159 frost-free days later.

Brooklyn Center 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 Brooklyn Center 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.

Why 04/30 isn't a guarantee

04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 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 Brooklyn Center compares

Brooklyn Center's growing season runs about 159 days, ranking 32,588 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 243 of 943.

Learn more

the frost range explains how to read the range around Brooklyn Center's dates instead of trusting one, and local microclimates explains what one yard in Brooklyn Center can differ from the 55430 normal.