Sleepy Eye, MN 56084 Frost Dates
Frost dates for Sleepy Eye, MN, ZIP 56084
The last spring frost here typically falls around 04/29, about 244 days from today. The first fall frost typically arrives around 10/07, about 161 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 Sleepy Eye, not a forecast for this year.
What to do before the first frost
Zone 5a around Sleepy Eye has about 6 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 Sleepy Eye's last frost
04/29 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. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Sleepy Eye compares
About 161 days separate Sleepy Eye's last and first frost, putting it 32,046 of 40,283 ZIP codes nationally. Within MN, it ranks 199 of 943.
Learn more
zone vs. frost date explains why Zone 5a and Sleepy Eye's frost date answer different questions, and the frost range explains how to read the range around Sleepy Eye's dates instead of trusting one.