PARKWAY 6 S CRYSTAL CRE, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(456385) PARKWAY 6 S CRYSTAL CRE
From Year=1943 To Year=1966
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1154 975 1026 797 628 426 255 274 385 663 918 1069 8570
60 999 834 871 647 474 286 137 152 249 508 768 914 6840
57 906 750 778 557 384 208 84 94 178 418 678 821 5857
55 844 693 716 497 327 162 56 64 136 359 618 759 5230
50 689 552 561 348 196 71 13 15 58 224 469 604 3800
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