• Friday

    Dec 26

    48°Lo 29°

    Mostly cloudy

    Watch for hair frizz
    • Wind
      Gust
      24 mph
    • Precip
      17%
    • Hours of Precip
      0.5
    more
  • Saturday

    Dec 27

    35°Lo 23°

    Partly sunny and colder

    Advisory for hair frizz
    • Wind
      Gust
      14 mph
    • Precip
      25%
    • Hours of Precip
      0
    more
  • Sunday

    Dec 28

    33°Lo 20°

    Sun and clouds

    Watch for hair frizz
    • Wind
      Gust
      22 mph
    • Precip
      23%
    • 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.