(170307) -- CHICAGO, March 7, 2017 (Xinhua) -- A jogger runs his dog along Lake Michigan during early morning in Chicago, Illinois, United States, on March 7, 2017. For the first time in 146 years, the U.S. National Weather Service documented no snow on the ground in Chicago in January and February. (Xinhua/Ting Shen)more(170307) -- CHICAGO, March 7, 2017 (Xinhua) -- Runners jog along Lake Michigan during early morning in Chicago, Illinois, United States, on March 7, 2017. For the first time in 146 years, the U.S. National Weather Service documented no snow on the ground in Chicago in January and February. (Xinhua/Ting Shen)more