SHANGHAI: A wave of low temperature sweeping southern China brought rare snowfall to Shanghai on Tuesday (Jan 20), delighting residents of the financial hub as authorities warned that the frigid weather could last for at least three days. The city, on China's east coast, last experienced a heavy snowfall in January 2018. And just last week, Shanghai basked in unusually high temperatures of 20 degrees Celsius, which local media said had caused some osmanthus trees to bloom. "The weather seems