Kaleva, MI 49645 Frost Dates
Frost dates for Kaleva, MI, ZIP 49645
The last spring frost here typically falls around 05/28, about 273 days from today. The first fall frost typically arrives around 09/25, about 119 frost-free days later.
Zone 6a (-10 to -5°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 Kaleva, not a forecast for this year.
What to do before the first frost
Zone 6a around Kaleva has about 4 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 Kaleva's last frost
05/28 is the middle of 30 years of NOAA records, not a promise. Plant by 05/13 and you're betting against frost in roughly 9 years out of 10. 06/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kaleva compares
Kaleva's growing season runs about 119 days, ranking 39,160 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 1,104 of 1,153.
Learn more
zone vs. frost date explains why Zone 6a and Kaleva's frost date answer different questions, and the frost range explains how to read the range around Kaleva's dates instead of trusting one.