March 30, 2021 1:52 pm UV Index: Why Does It Change Throughout the Year? How do UV rays change throughout the year and why is it possible to get a sunburn even when it’s cloudy? NBC 7 Meteorologist Sheena Parveen has everything you need to know about the UV index. US & World Videos 2:12 RV park renters need places to live after homeless service provider buys site 22:55 Politically Speaking: 1-on-1 with San Diego Mayor Gloria after reelection victory 1:37 Program gives students hands-on experience in the veterinary field 0:34 1st Amazon Fresh store opens in San Diego County 0:48 Mountain Fire in Ventura County burns more than 14,000 acres
