Mendota, MN 55111 Frost Dates
Frost dates for Mendota, MN, ZIP 55111
Around 04/23 is the usual last spring frost, about 238 days away. The first fall frost typically arrives around 10/18, about 176 frost-free days later.
Mendota sits in USDA Zone 5a (-20 to -15°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
Zone 5a around Mendota has about 7 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 Mendota's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Mendota compares
Mendota's growing season runs about 176 days, ranking 26,649 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 42 of 943.
Learn more
the frost range explains how to read the range around Mendota's dates instead of trusting one, and local microclimates explains what one yard in Mendota can differ from the 55111 normal.