Brook Park, MN 55007 Frost Dates
When can you plant in Brook Park, MN?
Around 05/16 is the usual last spring frost, about 261 days away. The first fall frost typically arrives around 09/24, about 130 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 Brook Park, not a forecast for this year.
What to do before the first frost
About 4 weeks of growing season left in Brook Park before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/16 isn't a guarantee
05/16 is the middle of 30 years of NOAA records, not a promise. Plant by 05/03 and you're betting against frost in roughly 9 years out of 10. 05/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brook Park compares
Brook Park's growing season runs about 130 days, ranking 38,424 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 861 of 943.
Learn more
the frost range covers how to read the range around Brook Park's dates instead of trusting one. local microclimates covers what one yard in Brook Park can differ from the 55007 normal.