DONNER MEM SP, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042467) DONNER MEMORIAL ST PK
From Year=1953 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 1171 1006 974 776 548 312 138 160 321 610 881 1149 8046
60 1016 865 819 626 395 180 49 59 183 455 731 994 6371
57 923 780 726 536 307 118 21 27 117 363 641 901 5458
55 861 723 664 476 252 85 12 15 83 304 581 839 4892
50 706 582 509 330 136 32 2 3 30 172 431 684 3615
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