Last year’s devastating floods and fires in California combined with hurricanes and other natural disasters to wreak unprecedented financial damage on the United States, the federal government reported Monday. The nation endured 16 weather and climate events that inflicted $1 billion or more apiece in damage in 2017, tying 2011 for the most 10-digit calamities in a year and setting an annual total-cost record of $306 billion, according to the National Oceanic and Atmospheric Administration. The natural disasters resulted in 362 deaths.