UV Index
UV Index
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Today's UV index in Ann Arbor, United States 
will be up to 3.6, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 3.6 in Ann Arbor, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
Ann Arbor, Michigan experiences a continental climate with cold winters and warm summers. The UV index is moderate, typically ranging from 3 to 7 throughout the year, with peak levels during summer months.
The city has four distinct seasons, with cold and snowy winters from December to February, mild springs from March to May, warm summers from June to August, and colorful autumns from September to November.
Compared to other regions in the Great Lakes, Ann Arbor's weather is relatively similar, with lake-effect snowfall and temperature fluctuations. Neighboring countries, such as Canada, experience colder temperatures and more extreme seasonal variations, while southern states tend to have milder winters and hotter summers.