Frost Dates for 49664 — Maple City, Michigan

Half of springs at Maple City 1E, MI see their last 32°F night by May 22; only one in ten is past it by May 4, and one in ten still has one after June 6. Planting tender crops after May 28 leaves a 30% risk of a frost on them, after June 1 20%, and after June 6 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 55% of the 172 Michigan stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 9 in half of years, as early as September 25 one year in ten, and holds off past October 26 one year in ten. A hard freeze of 28°F follows 15 days later, around October 24; in spring the one-in-ten date for 28°F is May 26, 11 days before the 32°F one. The freeze-free season lasts 140 days in a typical year, shorter than at 74% of the 172 Michigan stations; it reaches 164 days one year in ten and falls short of 117 one year in ten. On average 154 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 11 days longer, to about June 2, and return around September 29. Severe cold of 16°F or below comes every winter, usually between November 29 and April 2.

July is the warmest month at Maple City 1E, MI, averaging 80°F by day and 57°F at night; January is the coldest at 29°F and 16°F. A freezing night is all but certain in every month from October to May (a 90% chance or more). From July to August the chance of a 32°F night stays under 10% each month. In spring, June still brings one in 22% of years.

Warmth for growing adds up to 2,208 growing degree days a year (base 50°F), fewer than at 63% of the 172 Michigan stations. 29% of them (648) have built up by the end of June, and July adds the most, 578. Precipitation totals 35.7 inches a year, most in October (4.5") and least in February (1.9"); May to September bring 44% of it.

The nearest other station, Traverse City Munson, MI, 15 miles southeast of Maple City and 164 feet lower, has a last frost 13 days earlier (May 9), a first frost 6 days later (October 15), a season 16 days longer.

The first measurable snow (0.1 inch or more) in Maple City usually arrives around November 2, and the last of the season around April 19. Those are the middle dates across the winters of 1991–2020 at Maple City 1E, MI, 3.9 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 33 days after the last snow.

ZIP 49664 is 4 miles from Maple City 1E, MI, which stands at 799 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 49621 (Cedar). The 2023 USDA Plant Hardiness Zone Map lists ZIP 49664 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.