TWIN LAKES, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049105) TWIN LAKES
From Year=1948 To Year=2000
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1174 1046 1097 918 730 467 252 273 399 660 921 1129 9066
60 1019 905 942 768 575 321 117 136 253 506 771 974 7285
57 926 820 849 678 482 240 60 76 174 413 681 881 6282
55 864 763 787 618 421 192 35 47 131 354 621 819 5652
50 709 622 632 468 276 97 7 11 57 218 471 665 4233
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 Apr 5, 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