ARIZONA SONORA DESERT M, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020415) ARIZONA SONORA DESERT M
From Year=1962 To Year=1973
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 414 491 626 789 1089 1309 1504 1398 1265 987 633 408 10913
40 S 414 905 1531 2320 3410 4718 6222 7620 8885 9872 10505 10913 10913
45 M 270 353 472 639 934 1159 1349 1243 1115 832 484 265 9115
45 S 270 623 1095 1734 2669 3827 5176 6419 7534 8366 8851 9115 9115
50 M 146 226 326 490 779 1009 1194 1088 965 678 341 144 7386
50 S 146 372 698 1188 1967 2976 4169 5257 6223 6900 7241 7386 7386
55 M 55 118 204 343 625 859 1039 933 815 525 214 60 5789
55 S 55 173 376 720 1345 2204 3242 4175 4991 5515 5729 5789 5789
60 M 13 43 110 211 472 709 884 778 665 377 110 16 4388
60 S 13 55 165 376 848 1557 2440 3219 3884 4261 4371 4388 4388
Corn Growing Degree Days
50 M 272 311 396 501 677 794 931 895 812 633 399 265 6886
50 S 272 583 979 1480 2157 2951 3882 4777 5589 6222 6620 6886 6886
M = Monthly Data
S - Running sum of monthly data.
Growing 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.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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