TOK, ALASKA

Period of Record General Climate Summary - Heating Degree Days

Station:(509313) TOK
From Year=1954 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 2497 1953 1732 1047 617 300 214 359 698 1329 1968 2395 15109
60 2342 1812 1577 897 463 165 92 215 548 1174 1818 2240 13344
57 2249 1727 1484 807 372 100 44 141 458 1081 1728 2147 12340
55 2187 1671 1422 747 313 67 25 100 400 1019 1668 2085 11704
50 2032 1529 1267 597 179 18 5 31 259 864 1518 1930 10231
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