MOUNT SHASTA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045983) MOUNT SHASTA
From Year=1948 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 949 766 746 560 357 161 38 55 163 432 733 928 5888
60 794 625 591 411 224 75 9 15 75 286 583 773 4461
57 701 540 498 325 157 42 3 5 43 207 493 680 3694
55 639 484 437 271 119 27 2 2 27 161 433 618 3219
50 484 343 288 153 50 7 0 0 6 73 289 463 2157
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 Jul 28, 2006
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