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Degree Days

One way we help customers make sense of their energy use is by keeping track of degree days. It is a way to measure how much the outside temperature fluctuates and how much work your home heating or cooling system has to do.

Degree days measures the difference (above and below) between the day's temperature and 65 degrees F., and keeps a running total for the month. The lower the number, the closer the average temperature was to 65 degrees. The higher the number, the wider the gap between the outside temperature and 65 degrees.

Here are the 2010 / 2012 average degree day calculations for Goldendale and White Salmon.

 

2012 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 962 819 701 483
Cooling 0 0 0 14
Total 962 819 701 497

2012 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 946 755 683 432
Cooling 0 0 0 23
Total 946 755 683 455

2011 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 915 797          701 573 451 193 98 67 139 432 779 962
Cooling 0 0 0 0 8 61 113 250 137 0 0 0
Total 915 797 701 573 459 245 211 317 276 432 779 962

2011 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 870 773 690 522 355 141 64 40 101 346 690 913
Cooling 0 0 0 1 15 81 151 250 152 3 0 0
Total 870 773 690 523 370 222 215 290 253 249 690 913

2010 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 807 668 680 417 240 340 202 88 169 395 821 904
Cooling 0 0 0 4 0 25 287 210 59 12 0 0
Total 807 668 680 421 240 365 489 298 228 407 821 904

2010 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 755 649 640 465 303 184 60 57 123 330 737 880
Cooling 0 0 0 9 29 87 229 224 82 12 0 0
Total 755 649 640 474 332 271 289 281 205 242 737 880