Hill City, MN 55748 Frost Dates
Hill City, MN: when does the frost end?
The last spring frost here typically falls around 05/07, about 252 days from today. Fall's first freeze usually shows up around 10/03, roughly 148 days after the last spring frost.
Zone 4a (-30 to -25°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 Hill City, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Hill City'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
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/21 and only about 1 year in 10 sees frost after that.
Hill City against the rest of the dataset
At roughly 148 frost-free days, Hill City places 35,773 of 40,283 ZIP codes in this dataset. Within MN, it ranks 589 of 943.
Learn more
Before leaning on 55748's figures: local microclimates explains what one yard in Hill City can differ from the 55748 normal, while zone vs. frost date explains why Zone 4a and Hill City's frost date answer different questions.