Trail, MN 56684 Frost Dates
When can you plant in Trail, MN?
Around 05/15 is the usual last spring frost, about 260 days away. The first fall frost typically arrives around 09/26, about 132 frost-free days later.
Zone 3b (-35 to -30°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 Trail, not a forecast for this year.
What to do before the first frost
About 4 weeks of growing season left in Trail before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 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 Trail compares
Trail's growing season runs about 132 days, ranking 38,243 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 833 of 943.
Learn more
the frost range covers how to read the range around Trail's dates instead of trusting one. local microclimates covers what one yard in Trail can differ from the 56684 normal.