HARPER 1 S, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(353666) HARPER 1 S
From Year=1919 To Year=1975
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1215 913 746 492 259 86 9 24 195 508 859 1118 6424
60 1060 772 591 345 140 28 2 6 95 356 709 963 5066
57 967 687 498 261 86 12 0 2 56 269 619 870 4327
55 905 631 437 209 59 6 0 0 38 215 559 808 3868
50 750 490 287 103 19 1 0 0 11 106 411 654 2831
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