Sylvan Lake, MI 48007 Frost Dates
Frost dates for Sylvan Lake, MI, ZIP 48007
Around 04/29 is the usual last spring frost, about 244 days away. The first fall frost typically arrives around 10/20, about 172 frost-free days later.
The USDA Plant Hardiness Zone Map puts Sylvan Lake in Zone 6b (-5 to 0°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 6b around Sylvan Lake has about 8 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 Sylvan Lake's last frost
04/29 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 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 Sylvan Lake compares
Sylvan Lake's growing season runs about 172 days, ranking 28,358 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 266 of 1,153.
Learn more
the frost range explains how to read the range around Sylvan Lake's dates instead of trusting one, and local microclimates explains what one yard in Sylvan Lake can differ from the 48007 normal.