Lake Wilson, MN 56151 Frost Dates
Lake Wilson, MN: when does the frost end?
Around 05/07 is the usual last spring frost, about 252 days away. Fall's first freeze usually shows up around 09/29, roughly 145 days after the last spring frost.
Lake Wilson 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 Lake Wilson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Lake Wilson's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Lake Wilson against the rest of the dataset
At roughly 145 frost-free days, Lake Wilson places 36,281 of 40,283 ZIP codes in this dataset. Within MN, it ranks 636 of 943.
Learn more
Before leaning on 56151's figures: zone vs. frost date explains why Zone 5a and Lake Wilson's frost date answer different questions, while the frost range explains how to read the range around Lake Wilson's dates instead of trusting one.