Heating degree days

Base temperature



°F

Heating season begins


Calculation method






Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
2018/2019 591.0 822.8 960.4 902.1 1005.3 956.2 551.6 531.5 148.6 25.6 35.8 94.1 6624.8
2019/2020 622.6 782.8 835.4 886.5 1005.0 740.5 600.2 327.4 89.2 2.0 5891.3

2018/2019
2019/2020
sum
avg
Oct 591.0622.6 1213.6 606.8
Nov 822.8782.8 1605.5 802.8
Dec 960.4835.4 1795.7 897.9
Jan 902.1886.5 932.9 466.5
Feb 1005.31005.0 1968.1 984.1
Mar 956.2740.5 1699.0 849.5
Apr 551.6600.2 1076.8 538.4
May 531.5327.4 792.4 396.2
Jun 148.689.2 213.8 106.9
Jul 25.62.0 60.9 30.5
Aug 35.8 55.1 55.1
Sep 94.1 136.4 136.4












2018/2019


2019/2020


2018/2019
Day
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
113.324.030.554.120.327.522.030.96.12.20.70.0
21.318.738.334.315.652.426.523.74.22.11.30.0
36.425.341.920.417.367.420.312.83.90.60.00.0
413.924.338.912.528.057.616.710.61.61.20.00.9
514.324.535.714.330.647.49.26.63.82.30.60.0
624.727.544.422.348.633.410.313.01.72.00.71.1
725.937.534.827.158.627.510.821.80.92.40.01.0
830.636.430.929.439.724.36.428.07.11.11.25.1
932.936.431.523.634.829.74.735.619.20.90.83.1
1036.526.020.617.741.131.627.025.97.92.10.01.6
1132.443.219.829.535.525.939.816.24.10.01.14.1
1221.946.226.435.030.920.039.012.77.30.00.04.6
1324.131.934.535.222.132.233.64.52.50.00.74.2
1445.716.122.727.427.940.120.01.81.20.01.50.4
1537.816.417.125.030.235.37.82.12.30.60.90.1
1622.520.617.622.833.428.913.90.84.20.42.00.0
1717.639.816.320.845.327.015.512.88.30.00.00.0
1814.534.818.428.256.831.119.516.06.90.02.92.8
1910.828.026.729.254.030.212.228.13.00.00.02.1
209.623.128.018.745.633.63.030.92.12.10.01.4
214.816.016.125.944.817.113.832.911.51.81.47.8
228.015.333.841.745.423.526.329.618.91.51.99.0
2316.524.129.535.838.825.017.329.113.31.10.32.6
2412.925.526.043.633.421.07.616.34.30.02.81.0
2510.734.331.237.332.623.017.28.91.50.00.02.8
2612.029.334.830.125.715.59.78.50.50.02.57.0
2710.519.546.824.439.56.417.813.10.00.05.47.4
289.718.351.837.729.420.013.520.70.00.02.19.6
2910.327.841.341.133.634.920.40.01.10.55.8
3029.632.725.733.938.035.912.30.80.42.98.9
3129.849.024.030.65.80.01.6
2018/2019
Day Oct
°F
Nov
°F
Dec
°F
Jan
°F
Feb
°F
Mar
°F
Apr
°F
May
°F
Jun
°F
Jul
°F
Aug
°F
Sep
°F
151.7
65.0/38.4
41.0
46.5/35.5
34.5
42.4/26.6
10.9
23.4/-1.6
44.8
51.5/38.0
37.5
48.8/26.2
43.0
52.1/33.9
34.1
37.6/30.6
59.1
65.5/52.6
66.5
76.6/56.4
68.9
75.5/62.2
78.8
89.7/67.9
266.7
73.5/59.9
46.4
57.0/35.7
26.7
32.3/21.1
30.7
38.4/23.0
49.4
56.4/42.4
12.7
26.2/-0.9
38.5
45.8/31.2
41.4
51.5/31.2
62.7
72.5/52.9
66.9
77.1/56.6
69.8
79.6/59.9
84.9
94.3/75.5
361.8
77.8/45.8
39.7
46.6/32.8
23.2
27.4/18.9
44.7
54.0/35.3
47.7
59.0/36.4
-2.4
1.6/-6.3
44.7
53.0/36.4
52.3
62.7/41.8
62.6
70.6/54.5
72.3
81.8/62.7
76.6
85.7/67.5
74.0
82.3/65.7
451.2
61.0/41.3
40.8
49.9/31.6
26.1
32.2/20.0
52.5
60.5/44.5
37.0
51.8/22.2
7.5
16.3/-1.4
48.4
57.6/39.1
54.5
62.9/46.0
67.2
75.5/58.8
68.3
76.1/60.4
76.5
82.4/70.6
71.7
82.0/61.4
551.3
67.3/35.3
40.6
47.0/34.1
29.4
40.5/18.2
50.8
59.3/42.2
34.4
48.5/20.3
17.6
24.5/10.7
55.8
62.7/48.9
59.3
68.6/50.0
62.8
71.1/54.4
64.7
72.6/56.7
70.5
78.3/62.6
79.0
89.0/68.9
640.3
46.3/34.3
37.5
42.4/32.6
20.7
26.2/15.1
42.7
52.2/33.2
16.5
35.7/-2.8
31.7
43.4/19.9
54.7
64.5/44.9
52.0
61.2/42.8
66.4
74.5/58.3
65.3
73.5/57.1
73.9
85.6/62.1
67.0
73.3/60.7
739.2
43.5/34.8
27.5
33.7/21.3
30.2
34.2/26.2
38.0
43.3/32.6
6.4
18.5/-5.7
37.5
50.8/24.2
54.2
63.5/44.9
43.2
46.4/40.0
69.5
77.6/61.3
68.1
80.7/55.5
73.1
79.8/66.4
71.2
81.5/60.9
834.4
36.4/32.4
28.7
34.6/22.7
34.2
43.1/25.2
35.7
41.9/29.4
25.4
34.3/16.4
40.7
45.8/35.6
59.2
67.3/51.1
37.1
44.4/29.7
60.5
75.2/45.7
68.3
76.1/60.5
68.4
76.6/60.2
60.7
68.2/53.2
932.2
34.2/30.1
28.7
40.2/17.1
33.5
39.5/27.5
41.4
51.4/31.4
30.2
41.3/19.1
35.4
43.3/27.4
61.7
70.4/52.9
29.5
32.2/26.7
45.9
54.0/37.7
72.9
84.4/61.3
75.3
88.9/61.7
66.1
79.6/52.5
1028.5
30.1/26.9
39.1
52.0/26.1
44.4
53.3/35.5
47.3
53.7/40.9
23.9
34.6/13.2
33.4
42.3/24.5
38.0
57.3/18.7
39.2
47.4/30.9
58.2
69.0/47.3
66.9
77.2/56.6
74.2
80.2/68.2
66.9
75.2/58.6
1132.7
36.4/28.9
21.8
26.1/17.5
45.3
49.5/41.0
35.6
41.5/29.6
29.5
37.0/22.0
39.2
47.8/30.5
25.2
35.2/15.2
48.9
57.9/39.8
62.8
72.4/53.2
76.7
86.8/66.5
68.2
75.8/60.5
62.0
69.2/54.8
1243.2
54.1/32.2
18.8
23.0/14.6
38.6
49.6/27.6
30.0
32.0/28.0
34.1
42.3/25.9
45.1
52.1/38.0
26.1
32.2/19.9
52.3
64.8/39.8
58.1
66.6/49.6
77.2
85.2/69.1
75.6
85.6/65.5
61.9
70.7/53.0
1341.0
58.5/23.4
33.2
43.7/22.6
30.6
38.0/23.1
29.9
34.8/24.9
42.9
51.1/34.7
32.9
40.9/24.8
31.4
38.6/24.2
61.8
70.0/53.5
68.1
81.0/55.1
76.1
85.4/66.7
72.8
83.3/62.3
62.4
71.3/53.5
1419.3
23.3/15.3
49.0
56.4/41.5
42.4
49.0/35.7
37.7
45.2/30.1
37.2
51.3/23.0
25.0
29.5/20.4
45.0
57.2/32.8
66.7
75.3/58.0
69.2
78.0/60.3
75.3
84.5/66.0
70.8
82.6/59.0
72.9
82.2/63.6
1527.2
37.4/17.0
48.6
55.3/41.9
47.9
53.1/42.7
40.0
44.9/35.1
34.9
50.6/19.1
29.7
40.2/19.2
58.0
68.1/47.9
67.1
77.4/56.8
64.2
70.8/57.6
74.1
85.4/62.7
74.6
87.8/61.4
72.2
79.8/64.6
1642.6
48.7/36.4
44.5
54.9/34.0
47.4
53.8/41.0
42.2
48.4/36.0
31.6
41.3/21.9
36.2
42.9/29.4
51.2
58.4/43.9
67.8
73.8/61.8
62.1
69.8/54.3
74.2
84.8/63.6
70.8
84.5/57.0
74.5
80.5/68.5
1747.4
54.2/40.6
25.2
34.0/16.4
48.7
53.7/43.7
44.3
50.3/38.2
19.7
30.2/9.2
38.0
46.1/29.9
49.6
58.0/41.1
52.2
63.1/41.3
56.7
63.6/49.8
81.5
91.2/71.8
76.9
85.5/68.2
74.1
82.5/65.6
1850.6
59.0/42.1
30.3
45.6/14.9
46.7
51.8/41.5
36.9
45.0/28.7
8.3
13.2/3.3
33.9
41.6/26.2
45.6
56.0/35.1
49.1
58.3/39.8
58.3
65.7/50.8
82.8
91.8/73.7
67.4
81.5/53.3
63.8
71.5/56.1
1954.2
59.9/48.5
37.1
43.3/30.8
38.4
44.8/31.9
35.9
43.2/28.5
11.1
14.2/7.9
34.8
39.8/29.8
53.2
66.2/40.1
36.9
42.3/31.5
64.6
75.2/54.0
82.9
90.8/75.0
79.7
87.8/71.6
67.3
77.9/56.7
2055.4
62.3/48.5
41.9
50.8/33.0
37.0
45.1/28.9
46.3
51.5/41.1
19.5
28.4/10.5
31.4
34.0/28.8
63.4
70.4/56.3
34.2
37.7/30.6
66.6
76.7/56.5
70.0
83.2/56.7
80.6
89.8/71.3
68.5
77.4/59.6
2161.0
68.1/53.8
49.1
56.0/42.1
48.9
57.2/40.6
39.1
54.9/23.3
20.3
26.5/14.0
48.0
53.2/42.7
51.3
60.9/41.6
32.1
35.0/29.2
53.6
62.7/44.4
66.8
75.7/57.9
67.2
75.1/59.3
58.4
69.5/47.2
2257.1
63.5/50.6
49.8
58.4/41.1
31.2
41.0/21.4
23.4
27.0/19.7
19.7
24.5/14.8
41.5
49.0/34.0
38.8
41.7/35.8
35.5
40.6/30.3
46.1
50.7/41.5
66.8
74.5/59.1
69.2
80.9/57.5
56.5
67.0/46.0
2348.5
53.3/43.7
41.0
44.8/37.1
35.6
44.2/26.9
29.3
36.4/22.1
26.2
33.0/19.4
40.0
46.1/33.9
47.7
58.3/37.1
36.0
38.5/33.4
51.7
59.6/43.8
69.6
78.5/60.6
72.7
81.4/64.0
64.4
72.8/56.0
2452.1
56.4/47.8
39.5
49.9/29.1
39.0
44.9/33.1
21.5
28.4/14.5
31.6
38.5/24.7
44.1
50.0/38.1
57.5
65.4/49.6
48.8
62.9/34.6
62.8
73.5/52.1
78.8
87.5/70.1
66.6
79.2/53.9
70.7
80.3/61.1
2554.3
59.3/49.3
30.7
36.0/25.4
33.9
38.2/29.5
27.7
31.9/23.5
32.5
46.0/18.9
42.0
52.1/31.9
47.9
57.1/38.6
56.6
66.9/46.3
67.1
75.1/59.0
74.1
79.4/68.8
80.3
89.2/71.3
64.3
73.3/55.3
2653.0
60.6/45.4
35.7
44.6/26.8
30.3
39.7/20.8
35.0
42.3/27.6
39.4
59.8/18.9
49.5
61.5/37.5
55.8
66.8/44.7
56.6
64.1/49.0
72.3
81.7/62.9
77.6
85.3/69.8
66.9
78.9/54.9
61.9
80.5/43.2
2755.0
67.1/42.9
45.6
51.6/39.5
18.2
21.5/14.9
40.6
46.0/35.2
25.6
39.2/11.9
59.0
66.5/51.4
47.2
58.0/36.4
52.0
59.3/44.6
75.4
82.2/68.5
73.1
78.8/67.3
60.2
67.1/53.2
58.8
69.6/47.9
2856.9
71.3/42.4
46.7
51.9/41.5
13.2
16.4/10.0
27.4
37.9/16.8
35.6
46.8/24.4
45.0
55.6/34.4
52.7
69.4/35.9
44.3
50.2/38.4
77.6
86.3/68.9
74.4
82.6/66.1
71.0
85.4/56.6
56.3
68.5/44.1
2956.8
73.0/40.5
37.2
41.6/32.8
23.8
37.6/9.9
24.0
35.4/12.5
31.4
34.8/28.0
30.2
35.9/24.4
44.6
52.0/37.2
76.4
84.8/67.9
73.4
86.0/60.8
72.8
82.6/63.0
63.3
81.3/45.2
3035.5
40.4/30.5
32.3
37.0/27.6
39.3
48.0/30.6
31.2
45.3/17.0
27.0
31.0/23.0
29.1
32.8/25.4
52.8
61.1/44.4
72.0
82.0/62.0
73.5
83.7/63.2
65.1
76.6/53.6
56.5
66.2/46.7
3135.2
40.2/30.2
16.0
31.0/1.0
41.1
46.9/35.2
34.4
42.6/26.2
60.2
68.8/51.5
75.0
84.7/65.3
69.5
80.5/58.5
2019/2020
Day
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
121.631.329.424.415.831.412.82.30.02.0
219.124.017.329.217.634.037.514.50.90.0
315.916.618.029.846.021.042.211.00.6
47.927.419.716.056.418.026.513.60.7
512.621.726.230.852.018.612.013.70.2
617.625.525.832.336.115.37.513.31.9
710.033.014.621.841.68.77.311.61.2
81.416.120.119.927.114.59.822.28.2
917.54.234.131.439.320.223.018.516.0
1043.422.134.143.343.517.610.920.17.1
1133.548.120.637.541.513.516.726.71.7
1213.923.023.333.439.226.440.915.21.2
138.020.130.633.846.635.649.74.81.1
145.726.237.122.727.236.338.211.00.3
1519.310.940.833.632.128.226.112.20.0
169.219.242.335.529.021.141.710.10.0
171.522.034.926.534.725.335.110.50.0
1812.311.519.635.642.118.217.84.212.2
1916.512.724.832.348.535.420.42.218.7
2024.225.324.925.342.445.617.13.13.0
2125.841.912.320.620.532.413.49.01.7
2227.533.26.425.918.424.39.94.42.6
2318.611.032.426.822.312.46.12.1
2414.918.622.133.817.320.618.61.3
2512.532.126.321.446.514.016.716.30.9
2617.747.033.122.538.825.57.37.61.9
2744.348.337.126.326.929.94.72.10.6
2847.237.642.328.419.430.48.26.81.4
2954.434.241.631.515.825.111.63.10.0
3052.635.140.433.221.62.71.31.9
3130.028.827.813.811.7
2019/2020
Day Oct
°F
Nov
°F
Dec
°F
Jan
°F
Feb
°F
Mar
°F
Apr
°F
May
°F
Jun
°F
Jul
°F
Aug
°F
Sep
°F
143.5
46.7/40.2
33.8
42.8/24.7
35.7
44.8/26.5
40.7
47.3/34.0
49.2
57.0/41.4
33.6
44.9/22.3
52.5
66.2/38.8
65.9
76.1/55.7
74.9
83.9/65.8
67.6
77.9/57.2
245.9
54.4/37.4
41.1
57.9/24.2
47.7
52.7/42.7
35.8
42.2/29.4
48.5
69.2/27.8
31.1
42.3/19.8
27.6
38.8/16.3
50.6
55.7/45.4
71.3
80.9/61.6
69.8
69.8/69.8
349.1
57.7/40.5
48.5
57.2/39.7
47.1
51.9/42.2
35.2
41.6/28.8
19.1
27.8/10.3
44.1
54.7/33.4
22.8
32.2/13.4
54.1
64.7/43.4
74.0
85.4/62.6
458.2
69.3/47.0
37.7
42.2/33.1
45.3
49.7/40.9
49.0
60.0/38.0
8.7
12.6/4.7
47.1
56.3/37.8
38.6
51.4/25.7
51.5
62.9/40.0
73.3
84.1/62.4
552.5
59.4/45.5
43.4
52.3/34.4
38.8
47.3/30.3
34.2
39.9/28.5
13.0
22.2/3.8
46.5
54.1/38.8
53.0
64.2/41.8
51.3
63.1/39.5
75.3
86.3/64.3
647.5
55.6/39.3
39.5
54.7/24.3
39.3
48.3/30.2
32.8
38.7/26.8
28.9
38.3/19.5
49.8
61.4/38.1
58.1
67.4/48.8
51.7
62.8/40.6
66.1
74.8/57.3
755.8
68.1/43.4
32.1
42.2/21.9
50.5
57.2/43.7
43.2
50.4/36.0
23.4
27.0/19.8
56.4
63.8/48.9
58.0
65.8/50.1
54.5
69.0/39.9
71.8
83.4/60.1
866.9
74.3/59.4
48.9
63.4/34.4
44.9
53.4/36.4
45.1
56.8/33.4
37.9
50.8/25.0
50.5
63.3/37.7
55.8
67.4/44.2
42.8
55.2/30.4
57.6
68.0/47.2
949.6
73.0/26.1
62.6
71.9/53.2
31.0
38.0/23.9
33.7
39.4/27.9
25.7
34.0/17.4
44.8
55.7/33.9
42.0
49.0/35.0
46.6
54.2/38.9
49.1
59.9/38.2
1021.6
26.5/16.7
42.9
64.7/21.1
31.0
39.4/22.5
21.7
30.0/13.4
21.5
26.5/16.5
47.4
55.1/39.7
55.0
68.5/41.5
44.9
53.4/36.4
59.9
72.7/47.0
1131.5
47.2/15.8
17.0
25.1/8.8
44.5
51.7/37.2
27.5
42.5/12.5
23.5
34.4/12.6
51.6
60.9/42.2
48.4
64.0/32.7
38.4
47.5/29.2
66.3
74.1/58.4
1251.2
60.9/41.4
42.1
58.9/25.2
41.7
46.6/36.8
31.6
37.7/25.5
25.8
34.7/16.9
38.6
49.4/27.8
24.1
32.6/15.6
49.8
63.2/36.4
71.3
82.5/60.1
1358.1
69.0/47.1
44.9
54.7/35.1
34.5
40.6/28.3
31.3
37.9/24.6
18.4
22.5/14.3
29.5
32.0/26.9
15.3
19.6/11.0
62.3
73.4/51.2
69.6
78.6/60.6
1460.4
69.2/51.6
38.9
47.9/29.8
28.0
31.4/24.5
42.3
51.3/33.3
37.9
54.6/21.1
28.8
32.1/25.4
26.8
39.0/14.6
54.0
60.0/48.0
73.9
84.0/63.7
1545.8
55.0/36.5
55.0
68.5/41.5
24.3
28.5/20.0
31.5
36.6/26.3
33.0
42.8/23.1
36.9
46.6/27.1
39.0
48.6/29.3
52.8
60.0/45.6
75.4
84.6/66.1
1657.6
72.0/43.2
45.9
58.4/33.3
22.7
27.4/18.0
29.6
36.3/22.8
36.0
45.2/26.8
44.0
55.0/32.9
23.3
29.6/17.0
55.0
62.7/47.2
77.0
87.2/66.8
1765.1
71.3/58.9
43.1
53.4/32.7
30.1
41.3/18.9
38.6
51.5/25.6
30.3
40.9/19.7
39.8
48.1/31.4
29.9
45.6/14.2
54.7
65.7/43.6
71.8
76.5/67.0
1852.7
62.9/42.5
53.5
58.7/48.3
45.5
53.2/37.7
29.5
36.2/22.7
23.0
29.2/16.7
46.9
55.2/38.5
47.3
53.5/41.0
64.1
78.3/49.9
52.8
56.7/48.9
1948.6
58.2/38.9
52.4
60.6/44.1
40.2
45.1/35.3
32.8
40.0/25.5
16.6
24.0/9.1
29.7
38.5/20.8
44.6
55.7/33.5
68.6
80.8/56.3
46.3
58.2/34.4
2040.8
49.0/32.6
39.8
55.1/24.4
40.2
47.2/33.1
39.8
45.6/33.9
22.7
36.8/8.5
19.4
21.7/17.1
47.9
57.2/38.6
66.6
80.4/52.8
66.5
79.7/53.2
2139.3
44.9/33.6
23.2
24.7/21.6
52.8
61.1/44.4
44.4
51.5/37.3
44.6
55.0/34.1
32.6
43.8/21.4
51.6
59.3/43.9
56.7
67.4/45.9
66.1
73.9/58.2
2237.5
38.1/36.9
31.8
40.4/23.2
58.6
64.4/52.8
39.1
45.8/32.4
46.7
52.1/41.2
40.7
46.8/34.6
55.2
59.5/50.8
62.8
73.9/51.7
64.3
72.2/56.3
2346.5
58.2/34.7
54.0
60.0/48.0
32.7
38.8/26.5
38.2
44.6/31.8
42.7
48.8/36.6
52.6
62.0/43.2
59.6
67.7/51.4
66.7
76.9/56.5
2450.1
56.8/43.4
46.5
51.3/41.6
43.0
49.0/36.9
31.2
38.9/23.5
47.7
56.3/39.1
44.4
52.7/36.1
46.5
52.3/40.6
71.3
82.8/59.8
2552.5
53.9/51.1
32.9
44.0/21.8
38.7
46.6/30.8
43.7
50.9/36.4
18.6
24.8/12.3
51.0
58.8/43.2
48.3
59.7/36.9
48.7
56.9/40.5
74.7
88.2/61.2
2647.8
66.9/28.6
18.1
22.0/14.1
31.9
39.0/24.8
42.5
50.1/34.9
26.3
40.3/12.2
39.6
45.1/34.0
57.9
65.4/50.3
58.7
70.3/47.1
65.4
73.4/57.3
2720.7
28.6/12.8
16.8
22.1/11.4
27.9
32.4/23.4
38.7
44.5/32.9
38.2
44.7/31.6
35.2
41.2/29.1
62.5
73.5/51.4
64.8
72.4/57.2
73.6
84.3/62.8
2817.9
23.6/12.1
27.5
42.8/12.1
22.8
26.5/19.0
36.6
44.2/29.0
45.6
54.3/36.9
34.7
43.0/26.3
57.2
66.3/48.0
58.2
63.9/52.5
71.4
83.4/59.3
2910.6
17.9/3.3
30.9
41.5/20.2
23.4
28.7/18.1
33.6
39.7/27.4
49.2
56.5/41.9
40.0
47.5/32.4
54.0
67.2/40.8
64.9
76.9/52.8
75.2
84.6/65.8
3012.4
24.0/0.8
30.0
32.5/27.4
24.6
30.8/18.4
31.9
37.5/26.2
43.5
50.8/36.1
66.0
77.7/54.2
67.5
75.3/59.7
66.7
75.9/57.5
3135.0
48.5/21.5
36.2
48.4/24.0
37.2
47.8/26.6
51.3
62.0/40.5
57.0
79.6/34.4


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