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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 2013 / 2015 average degree day calculations for Goldendale and White Salmon.

 

2015 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 838 617 539 480 221 58 44 181 211  338    742  
Cooling 0 0 1 13 56 319 289 243 79  20  0  
Total 838 617 540 493 277 377 333 424 290  358  742  

2015 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 781 560 482 404 174 43 12 28 142 224  700  863
Cooling 0 0 5 23 80 317 385 316 94  31 0  0
Total 781 560 487 427 254 360 397 344 236  255  700  863

2014 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 925 876 655 453 243 150 38 33 152 326 926 772
Cooling 0 0 0 2 54 98 306 274 104 27 0 0
Total 925 876 655 455 297 248 344 307 256 353 926 772

2014 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 857 830 598 376 195 113 21 13 93 268 756 809
Cooling 0 0 0 11 76 110 313 312 149 39 0 0
Total 857 830 598 387 271 223 334 325 242 307 756 809

2013 Degree Days - Goldendale

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 1055 746 620 501 276 135 48 40 173 526 819 998
Cooling 0 0 0 8 63 91 351 217 129 1 0 0
Total 1055 746 620 509 339 226 399 257 302 527 819 998

2013 Degree Days - White Salmon

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Heating 977 652 570 408 219 96 29 18 122 452 613 1066
Cooling 0 0 0 19 81 117 327 251 143 0 0 0
Total 977 652 570 427 300 213 356 269 265 452 613 1066