Waseca, MN 56093 Frost Dates
When can you plant in Waseca, MN?
The last spring frost here typically falls around 05/02, about 247 days from today. The first fall frost typically arrives around 10/04, about 155 frost-free days later.
Waseca sits in USDA Zone 4b (-25 to -20°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
About 5 weeks of growing season left in Waseca before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Waseca's last frost
05/02 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Waseca compares
About 155 days separate Waseca's last and first frost, putting it 33,941 of 40,283 ZIP codes nationally. Within MN, it ranks 347 of 943.
Learn more
zone vs. frost date covers why Zone 4b and Waseca's frost date answer different questions. the frost range covers how to read the range around Waseca's dates instead of trusting one.