Warroad, MN 56763 Frost Dates
When can you plant in Warroad, MN?
Around 05/16 is the usual last spring frost, about 261 days away. The first fall frost typically arrives around 09/24, about 129 frost-free days later.
The USDA Plant Hardiness Zone Map puts Warroad in Zone 3b (-35 to -30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 4 weeks of growing season left in Warroad 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 05/05 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 Warroad compares
At roughly 129 frost-free days, Warroad places 38,470 of 40,283 ZIP codes in this dataset. Within MN, it ranks 867 of 943.
Learn more
zone vs. frost date covers why Zone 3b and Warroad's frost date answer different questions. the frost range covers how to read the range around Warroad's dates instead of trusting one.