La Crescent, MN 55947 Frost Dates
Frost dates for La Crescent, MN, ZIP 55947
Typically, the last spring freeze lands around 04/15, roughly 230 days out. The first fall frost typically arrives around 10/28, about 194 frost-free days later.
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 La Crescent, not a forecast for this year.
What to do before the first frost
Zone 5a around La Crescent has about 9 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around La Crescent's last frost
04/15 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How La Crescent compares
La Crescent's growing season runs about 194 days, ranking 19,479 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 1 of 943.
Learn more
local microclimates explains what one yard in La Crescent can differ from the 55947 normal, and zone vs. frost date explains why Zone 5a and La Crescent's frost date answer different questions.