DALLESPORT FCWOS AP, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(451968) DALLESPORT FCWOS AP
From Year=1948 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
65 936 706 589 372 173 50 5 5 62 343 670 897 4808
60 781 565 434 231 74 10 0 0 17 204 521 742 3578
57 688 480 341 155 36 2 0 0 7 134 431 649 2923
55 626 424 281 111 19 1 0 0 3 95 372 587 2519
50 473 286 144 33 2 0 0 0 0 31 232 433 1635
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