La Salle, MN 56056 Frost Dates
When can you plant in La Salle, MN?
Typically, the last spring freeze lands around 04/30, roughly 245 days out. The first fall frost typically arrives around 10/07, about 160 frost-free days later.
The USDA Plant Hardiness Zone Map puts La Salle in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 6 weeks of growing season left in La Salle before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around La Salle's last frost
04/30 is the middle of 30 years of NOAA records, not a promise. Plant by 04/15 and you're betting against frost in roughly 9 years out of 10. 05/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How La Salle compares
La Salle's growing season runs about 160 days, ranking 32,554 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 233 of 943.
Learn more
local microclimates covers what one yard in La Salle can differ from the 56056 normal. zone vs. frost date covers why Zone 5a and La Salle's frost date answer different questions.