South St. Paul, MN 55075 Frost Dates
South St. Paul, MN: when does the frost end?
The last spring frost here typically falls around 04/24, about 239 days from today. Fall's first freeze usually shows up around 10/16, roughly 174 days after the last spring frost.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for South St. Paul, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until South St. Paul'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
04/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/10 and only about 1 year in 10 sees frost after that.
South St. Paul against the rest of the dataset
At roughly 174 frost-free days, South St. Paul places 27,366 of 40,283 ZIP codes in this dataset. Within MN, it ranks 69 of 943.
Learn more
Before leaning on 55075's figures: local microclimates explains what one yard in South St. Paul can differ from the 55075 normal, while zone vs. frost date explains why Zone 5a and South St. Paul's frost date answer different questions.