When does the fall season start in the state of Michigan?

Answer 1

The fall season starts at the same time everywhere in the Northern Hemisphere. It's on or around September 21 every year. It occurs at the exact moment of the autumnal equinox, when the Sun passes directly overhead at noon at the equator in September. For residents of the Southern Hemisphere, this is the vernal (spring) equinox, and the autumnal equinox occurs when the same thing happens in March, which for us is the vernal equinox.

"Equinox" literally means "equal night," because day and night are theoretically the exact same length on these days. In actuality, day is longer than night because daylight occurs even when the center of the Sun's disk falls below the horizon.

Answer 2

As the others above have already answered the official start of Fall is the same as everywhere else. However, if you're inquiring as to when the weather starts to change toward cooler-Fall like-leaf changing weather...

That varies. Parts of Michigan especially in Northern part of the state (the top of the mitten) & the Upper Peninsula start to get cooler sometimes as early as mid-late August. Peak leaf season tends to be late September-early October.

The southern part of Michigan tends to average about the same as the surrounding states with larger variables (extreme jumps or dips in temps & weather patterns from day to day) in the areas adjacent to the Great Lakes themselves. From personal experiences growing up there (southwest Michigan) it would get a lot cooler and rainy around mid October. September usually being a fair mix of Summer and Fall like weather.

I remember visiting the U.P. once in August for my birthday, and cold temps at night but warm sunny days were generally the rule...too cold to swim in the lake for me though. But it FELT like Fall up there already.

I've inlcuded a link to the State of Michigan's Fall color tour site that might give more insight into the Fall season in MI. (& a couple of other Michigan Fall sites too.)

Answer 3

The same day as the rest of the Northern Hemisphere. September 21.

Answer 4

September 21st

Answer 5

September and October see the greatest temperature change and is when all the leaves start to change color and drop.