SAFFORD, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(027388) SAFFORD
From Year=1898 To Year=1973
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 2 14 71 226 477 729 905 834 651 322 45 2 4277
57 0 7 45 176 416 669 843 772 591 265 26 0 3810
60 0 2 19 112 327 579 750 679 501 185 9 0 3162
65 0 0 3 38 190 429 595 524 352 78 1 0 2210
70 0 0 0 8 84 282 440 369 208 21 0 0 1413
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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