Live GFS Ensemble Forecast Heating & Cooling Degree Day Maps: 24-Hour Trend Subscribe to the Live HDD/CDD statistics to see how they compare to normal! Day 1 Total Heating & Cooling Degree Days Day 2 Total Heating & Cooling Degree Days Day 3 Total Heating & Cooling Degree Days Day 4 Total Heating & Cooling Degree Days Day 5 Total Heating & Cooling Degree Days Day 6 Total Heating & Cooling Degree Days Day 7 Total Heating & Cooling Degree Days Day 8 Total Heating & Cooling Degree Days Day 9 Total Heating & Cooling Degree Days Day 10 Total Heating & Cooling Degree Days Day 11 Total Heating & Cooling Degree Days Day 12 Total Heating & Cooling Degree Days Day 13 Total Heating & Cooling Degree Days Day 14 Total Heating & Cooling Degree Days Day 15 Total Heating & Cooling Degree Days