Lastrup, MN 56317 Frost Dates
When can you plant in Lastrup, MN?
The last spring frost here typically falls around 05/04, about 249 days from today. The first fall frost typically arrives around 10/05, about 151 frost-free days later.
Lastrup sits in USDA Zone 4a (-30 to -25°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.
What to do before the first frost
About 5 weeks of growing season left in Lastrup before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/04 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lastrup compares
Lastrup's growing season runs about 151 days, ranking 35,192 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 504 of 943.
Learn more
local microclimates covers what one yard in Lastrup can differ from the 56317 normal. zone vs. frost date covers why Zone 4a and Lastrup's frost date answer different questions.