Thursday evening before midnight, the temperature in Denver dropped to a record low of 13 degrees. The previous day the city came close to a record high with 83 degrees. This difference of 70 degrees in just 2 days is tied for second largest temperature change in Denver since 1872 when records began. We missed a tie with the largest 2 day temperature change by just 2 degrees. That occurred in 2008 when the temperature dropped 76 degrees between December 14 and 15. But what happened this week is certainly a record for the largest temperature swing in October. No...