• Friday

    Jan 2

    55°Lo 38°

    Mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      5 mph
    • Precip
      6%
    • Hours of Precip
      0
    more
  • Saturday

    Jan 3

    54°Lo 40°

    Sunny

    Advisory for hair frizz
    • Wind
      Gust
      6 mph
    • Precip
      1%
    • Hours of Precip
      1.5
    more
  • Sunday

    Jan 4

    56°Lo 41°

    Sunny

    Watch for hair frizz
    • Wind
      Gust
      4 mph
    • Precip
      0%
    • Hours of Precip
      0
    more
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The History Behind the UV Index

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.