Pemberton, MN 56078 Frost Dates
Pemberton, MN: when does the frost end?
The last spring frost here typically falls around 05/02, about 247 days from today. Fall's first freeze usually shows up around 10/04, roughly 155 days after the last spring frost.
Pemberton 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 5 weeks until Pemberton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/02 isn't a guarantee
05/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Pemberton against the rest of the dataset
About 155 days separate Pemberton's last and first frost, putting it 34,151 of 40,283 ZIP codes nationally. Within MN, it ranks 375 of 943.
Learn more
Before leaning on 56078's figures: zone vs. frost date explains why Zone 5a and Pemberton's frost date answer different questions, while the frost range explains how to read the range around Pemberton's dates instead of trusting one.