Global heating degree days by select city 2015
This statistic represents the number of heating degree days worldwide in 2015, broken down by major city. In that year, there were around 2,257 heating degree days in Beijing, China. According to the source, degree days are relative measurements of outdoor air temperature. Heating degree days are defined as the number of days that average temperatures fall below a chosen threshold, in this case 15 degrees centigrade or 59 degrees Fahrenheit.
