Heading in to this week, the heat turns up across West Michigan!

It’s almost the start of astronomical summer, and we have had see-saw temperatures for much of May and June across West Michigan. It looks like this week, ahead of the Summer Solstice on June 20, temperatures stay consistently warm and some of us will make a run at 90 degrees! This would be the first 90 degree day of the year.

The first 90 degree day in Grand Rapids is, on average, June 18. This is factoring in all temperature data since 1896 when records started being consistently kept.

Last year, the first 90 degree day was June 17. The first 90 degree day has been as late as August 11 though, back in 1907!

In Kalamazoo, the average first 90 degree day is June 15. Last year, it was June 13…

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