Help The Nepal Earthquake Relief Effort
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Low clouds and breezy
Sun yielding to clouds
Cloudy with a little rain
of sunlight, then sets at
of moolight, then sets at
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.