Olivia, MN 56277 Frost Dates
Frost dates for Olivia, MN, ZIP 56277
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/01, about 146 frost-free days later.
The USDA Plant Hardiness Zone Map puts Olivia in Zone 4b (-25 to -20°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
Zone 4b around Olivia has about 5 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 Olivia's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Olivia compares
At roughly 146 frost-free days, Olivia places 36,055 of 40,283 ZIP codes in this dataset. Within MN, it ranks 617 of 943.
Learn more
the frost range explains how to read the range around Olivia's dates instead of trusting one, and local microclimates explains what one yard in Olivia can differ from the 56277 normal.