CONCONULLY, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451666) CONCONULLY
From Year=1948 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1333 1015 883 573 332 157 53 57 208 576 954 1263 7404
60 1178 874 728 425 199 67 14 15 106 423 804 1108 5941
57 1085 789 635 338 132 33 5 5 63 335 714 1015 5149
55 1023 733 573 281 95 18 2 2 42 278 654 953 4654
50 868 592 419 154 32 3 0 0 11 150 504 798 3531
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 Jul 28, 2006
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