OLGA 2 SE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456096) OLGA 2 SE
From Year=1891 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 794 662 639 492 363 236 162 159 248 441 618 750 5564
60 639 521 484 342 211 97 40 38 110 287 468 595 3831
57 547 436 391 254 126 36 7 7 47 196 378 502 2927
55 485 380 330 196 78 13 1 1 21 141 318 440 2404
50 331 240 180 73 11 0 0 0 1 40 175 287 1339
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu