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Partly to mostly cloudy
Mostly sunny and cold
Progressively colder conditions are in the offing for Boston during the last days of 2014 and December and into the start of 2015. more >
Nov 12, 2012; 5:00 AM ET
The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.