Michigan UV Index

Live UV index and hourly forecasts for 2 cities in Michigan. Detroit sees the state's strongest sun with an average UV index of 5.9 and about 183 sunny days a year.

UV Index in Detroit Avg UV 5.9 · 183 sunny days/yr · Peak: May - September UV Index in Grand Rapids Avg UV 5.7 · 159 sunny days/yr · Peak: May - August

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