Heating degree days are calculated by subtracting the daily average temperature from 65 degrees Fahrenheit for every day of the year. For example, if today's average temperature (calculated by averaging the hi and low temp.) is 45 degrees Fahrenheit:
65-45 = 20 heating degree days for that day of the year
There are approximately 9,800 annual heating degree days in this area. The table below details the number of heating degree days per month and year for Granby, Colorado:
Heating Degree Days for Granby, CO
|
| Year |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
TOTAL |
| 2012 |
1,392 |
|
|
|
|
|
|
|
|
|
|
|
|
| 2011 |
1,560 |
1,400 |
1,116 |
906 |
713 |
347 |
118 |
158 |
446 |
822 |
1,200 |
1,521 |
10,307 |
| 2010 |
1,547 |
1,352 |
1,197 |
888 |
694 |
298 |
126 |
177 |
399 |
729 |
1,200 |
1,302 |
9,909 |
| 2009 |
1,410 |
1,372 |
1,116 |
870 |
496 |
360 |
186 |
248 |
420 |
899 |
1,050 |
1,626 |
10,053 |
| 2008 |
1,612 |
1,305 |
1,271 |
945 |
636 |
|
|
|
|
|
|
|
10,386 |
| 2007 |
1,736 |
1,176 |
1,054 |
765 |
558 |
300 |
93 |
171 |
465 |
806 |
1,110 |
1,504 |
|
| 2006 |
1,550 |
1,344 |
1,147 |
750 |
558 |
270 |
93 |
217 |
570 |
899 |
1,140 |
1,457 |
9,997 |
| 2005 |
1,364 |
1,260 |
1,147 |
780 |
|
330 |
93 |
217 |
420 |
744 |
1,140 |
1,488 |
9,541 |
| 2004 |
1,395 |
1,247 |
899 |
750 |
527 |
300 |
186 |
279 |
510 |
775 |
1,080 |
1,519 |
9,467 |
| 2003 |
1,426 |
1,148 |
961 |
750 |
527 |
390 |
124 |
217 |
570 |
713 |
1,050 |
1,333 |
9,209 |
AVE |
|
|
|
|
|
|
129 |
|
476
|
|
|
|
|
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