CONCONULLY, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451666) CONCONULLY
From Year=1894 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 1353 1059 886 569 346 170 51 59 225 575 958 1253 7505
60 1198 918 731 421 209 73 12 16 118 422 808 1098 6025
57 1105 833 638 334 140 36 4 6 71 333 718 1005 5223
55 1043 776 576 278 101 20 2 2 47 276 658 943 4723
50 888 635 422 152 34 3 0 0 13 150 508 788 3593
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