SELIGMAN 13 SSW, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027720) SELIGMAN 13 SSW
From Year=1962 To Year=1982
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 26 47 97 236 527 820 1049 966 737 452 144 35 5135
40 S 26 72 169 405 932 1752 2801 3768 4505 4957 5100 5135 5135
45 M 3 10 35 125 377 670 894 811 587 308 59 5 3885
45 S 3 14 49 174 551 1221 2115 2926 3513 3821 3880 3885 3885
50 M 1 1 9 48 237 520 739 656 438 177 12 0 2838
50 S 1 1 10 58 295 815 1554 2211 2648 2826 2838 2838 2838
55 M 0 0 1 11 119 371 584 501 292 75 1 0 1954
55 S 0 0 1 11 130 502 1086 1587 1879 1953 1954 1954 1954
60 M 0 0 0 1 37 230 429 347 157 21 0 0 1223
60 S 0 0 0 1 38 268 697 1044 1202 1223 1223 1223 1223
Corn Growing Degree Days
50 M 65 91 134 235 404 533 649 612 493 361 182 81 3839
50 S 65 156 290 525 928 1461 2110 2723 3216 3576 3758 3839 3839
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