MERCED MUNICIPAL ARPT, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045532) MERCED MUNICIPAL ARPT
From Year=1899 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
65 605 419 336 181 58 6 0 0 6 97 364 600 2672
60 450 278 190 79 14 1 0 0 1 30 221 445 1709
57 358 197 118 39 4 0 0 0 0 12 146 353 1228
55 298 148 79 22 2 0 0 0 0 6 104 293 952
50 160 55 19 3 0 0 0 0 0 1 32 156 426
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