DAVENPORT, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(452007) DAVENPORT
From Year=1893 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 1260 1000 843 584 370 191 61 68 233 573 921 1194 7299
60 1105 859 688 436 233 92 18 21 126 421 771 1039 5810
57 1012 774 595 350 163 51 7 8 78 333 681 946 5000
55 950 718 533 294 123 31 3 4 54 277 622 884 4493
50 795 577 380 168 48 6 0 0 17 155 472 729 3346
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