HDD / CDD Forecasts
National Weather Service Population Weighted Heating / Cooling Degree Day Forecasts

How to read this table
Population Weighted Cooling Degree Days
Region 17 Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep Total Diff from Avg.
1 3 | 3 | 3 | 4 | 5 | 7 | 4 5 | 5 | 5 | 6 | 6 | 7 3 | 4 | 5 | 6 | 4 0 | 2 | 4 | 5 1 | 2 | 4 2 | 3 2 16 9 | 128.57%
2 6 | 7 | 6 | 7 | 7 | 9 | 6 8 | 7 | 7 | 8 | 7 | 8 4 | 6 | 7 | 8 | 6 3 | 4 | 7 | 8 4 | 5 | 6 3 | 5 2 30 19 | 172.73%
3 7 | 7 | 7 | 8 | 8 | 8 | 6 6 | 7 | 8 | 8 | 8 | 6 6 | 8 | 10 | 10 | 9 7 | 9 | 11 | 10 7 | 9 | 9 1 | 6 0 34 23 | 209.09%
4 5 | 6 | 6 | 7 | 7 | 5 | 5 5 | 6 | 8 | 8 | 8 | 6 10 | 11 | 11 | 11 | 10 10 | 10 | 10 | 8 3 | 6 | 5 0 | 1 1 34 18 | 112.5%
5 12 | 12 | 12 | 12 | 13 | 13 | 12 12 | 12 | 12 | 13 | 13 | 13 12 | 12 | 13 | 13 | 13 11 | 11 | 13 | 13 11 | 11 | 12 11 | 10 9 78 21 | 36.84%
6 10 | 10 | 10 | 10 | 11 | 11 | 10 10 | 10 | 10 | 11 | 11 | 10 9 | 10 | 11 | 11 | 11 9 | 9 | 10 | 10 10 | 9 | 10 7 | 8 3 58 15 | 34.88%
7 15 | 15 | 16 | 15 | 16 | 15 | 15 15 | 15 | 16 | 17 | 16 | 16 15 | 14 | 16 | 16 | 16 16 | 15 | 16 | 16 15 | 15 | 15 10 | 11 9 95 17 | 21.79%
8 7 | 8 | 8 | 8 | 8 | 7 | 7 7 | 8 | 8 | 8 | 8 | 7 7 | 8 | 7 | 7 | 7 6 | 6 | 6 | 6 5 | 5 | 5 6 | 5 6 44 7 | 18.92%
9 2 | 2 | 2 | 2 | 2 | 2 | 3 1 | 1 | 2 | 2 | 1 | 3 1 | 1 | 1 | 1 | 1 2 | 1 | 1 | 2 4 | 3 | 2 4 | 4 3 17 -5 | -22.73%
CONUS 8 | 8 | 8 | 8 | 9 | 9 | 8 8 | 8 | 9 | 9 | 9 | 9 7 | 8 | 9 | 9 | 9 7 | 8 | 9 | 9 7 | 8 | 8 5 | 6 4 46 12 | 35.29%
Utility Gas Weighted Heating Degree Days
Region 17 Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep Total Diff from Avg.
1 0 | 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 1 | 0 | 0 | 0 0 | 0 | 0 0 | 0 0 1 -37 | -97.37%
2 0 | 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 0 | 0 | 0 0 | 0 0 0 -28 | -100.0%
3 0 | 0 | 0 | 0 | 0 | 0 | 0 1 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 0 | 0 | 0 1 | 0 4 6 -25 | -80.65%
4 2 | 2 | 2 | 2 | 1 | 2 | 1 3 | 1 | 1 | 1 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 3 | 1 | 1 6 | 4 4 18 -18 | -50.0%
5 0 | 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 0 | 0 | 0 0 | 0 0 0 -7 | -100.0%
6 0 | 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 0 | 0 | 0 0 | 0 0 0 -8 | -100.0%
7 0 | 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 | 0 0 | 0 | 0 | 0 0 | 0 | 0 0 | 0 0 0 -2 | -100.0%
8 4 | 2 | 2 | 2 | 2 | 2 | 2 1 | 1 | 1 | 1 | 2 | 2 2 | 2 | 2 | 3 | 3 7 | 6 | 5 | 4 9 | 10 | 8 6 | 8 5 34 1 | 3.03%
9 1 | 1 | 2 | 2 | 2 | 2 | 2 2 | 2 | 2 | 2 | 2 | 2 3 | 3 | 2 | 2 | 3 2 | 2 | 2 | 2 1 | 1 | 2 1 | 1 1 11 -4 | -26.67%
CONUS 1 | 1 | 1 | 1 | 1 | 1 | 1 1 | 1 | 1 | 0 | 1 | 1 1 | 1 | 1 | 1 | 1 1 | 1 | 1 | 1 1 | 1 | 1 2 | 1 2 9 -9 | -50.0%