Maynard, MN 56260 Frost Dates
When can you plant in Maynard, MN?
Around 05/04 is the usual last spring frost, about 249 days away. The first fall frost typically arrives around 10/01, about 150 frost-free days later.
Maynard sits in USDA Zone 4b (-25 to -20°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
About 5 weeks of growing season left in Maynard before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
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. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Maynard compares
At roughly 150 frost-free days, Maynard places 35,402 of 40,283 ZIP codes in this dataset. Within MN, it ranks 539 of 943.
Learn more
the frost range covers how to read the range around Maynard's dates instead of trusting one. local microclimates covers what one yard in Maynard can differ from the 56260 normal.