MINERAL, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(455425) MINERAL 1 SW
From Year=1930 To Year=1979
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 -99 -99 -99 -99 -99 185 192 202 296 -99 778 -99 -99
60 -99 -99 -99 -99 -99 78 64 76 160 -99 628 -99 -99
57 -99 -99 -99 -99 -99 30 20 29 101 -99 538 -99 -99
55 -99 -99 -99 -99 -99 13 6 15 67 -99 478 -99 -99
50 -99 -99 -99 -99 -99 0 0 2 21 -99 328 -99 -99
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