Ormsby, MN 56162 Frost Dates
Ormsby, MN: when does the frost end?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. Fall's first freeze usually shows up around 10/07, roughly 160 days after the last spring frost.
Ormsby 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.
Stretching the season past the first frost
With roughly 6 weeks until Ormsby's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Ormsby against the rest of the dataset
At roughly 160 frost-free days, Ormsby places 32,538 of 40,283 ZIP codes in this dataset. Within MN, it ranks 232 of 943.
Learn more
Before leaning on 56162's figures: local microclimates explains what one yard in Ormsby can differ from the 56162 normal, while zone vs. frost date explains why Zone 5a and Ormsby's frost date answer different questions.