DONNER MEMORIAL ST PK, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042467) DONNER MEMORIAL ST PK
From Year=1953 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 1172 1006 974 776 553 313 142 165 330 608 883 1144 8066
60 1017 864 819 626 400 182 51 63 191 453 733 989 6389
57 924 780 726 536 311 119 23 29 123 361 643 896 5470
55 862 723 664 476 256 86 12 16 87 302 583 834 4901
50 707 582 509 329 139 32 2 3 32 171 434 679 3619
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