degree days degree day degree days is essentially a measure of accumulated temperature 度日 Monthly Heating° Days (To Date): Yearly Heating° Days (To Date) degree days ãðàäóñî-äåíü Cooling° Days (Current) Heating° Days (Current) degree days degree day degree day degree day Degree Days Degree day degree day Wikipedia does know about it degree day degree days Yearly Cooling° Days (To Date) English degree day Monthly Cooling° Days (To Date) degree day English degree day degree day English degree day degree days degree-days ãðàäóñî-äåíü degree day degree days English degree day accumulation of temperature over time