YUMA CITRUS STN, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(029652) YUMA CITRUS STATION
From Year=1920 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
65 357 219 122 39 5 0 0 0 0 13 134 330 1218
60 209 108 45 10 0 0 0 0 0 2 53 183 611
57 134 61 20 3 0 0 0 0 0 1 25 110 353
55 93 39 10 1 0 0 0 0 0 0 14 73 230
50 29 10 1 0 0 0 0 0 0 0 2 20 62
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