SEBA DALKAI SCHOOL, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027671) SEBA DALKAI SCHOOL
From Year=1963 To Year=1972
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 37 64 185 331 674 899 1149 1072 831 546 189 41 6018
40 S 37 101 286 617 1291 2190 3339 4411 5242 5788 5977 6018 6018
45 M 11 18 89 202 522 749 994 917 681 394 88 12 4677
45 S 11 29 118 319 842 1591 2585 3501 4183 4577 4665 4677 4677
50 M 3 2 28 102 377 599 839 762 532 246 25 1 3515
50 S 3 6 34 136 513 1112 1951 2712 3244 3490 3515 3515 3515
55 M 1 0 3 37 241 450 684 607 384 119 3 0 2528
55 S 1 1 4 41 283 732 1416 2023 2407 2525 2528 2528 2528
60 M 0 0 0 8 127 302 529 452 241 39 0 0 1698
60 S 0 0 0 8 136 438 966 1418 1659 1698 1698 1698 1698
Corn Growing Degree Days
50 M 28 64 153 239 439 580 739 710 543 376 135 30 4037
50 S 28 93 246 485 924 1504 2242 2952 3495 3871 4006 4037 4037
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