MOUNT SHASTA, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045983) MOUNT SHASTA
From Year=1948 To Year=2010
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 948 766 744 563 355 158 37 53 160 433 729 931 5876
60 793 625 589 414 222 73 9 14 74 287 579 776 4454
57 700 540 496 327 155 40 3 5 42 207 489 683 3689
55 638 484 434 274 118 26 2 2 27 161 430 621 3215
50 483 343 286 156 49 6 0 0 6 72 286 466 2153
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