APACHE 6 WNW, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020300) APACHE 6 WNW
From Year=1938 To Year=1980
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 108 162 325 442 708 971 1052 991 826 575 287 119 6567
40 S 108 270 596 1038 1746 2717 3769 4759 5586 6161 6448 6567 6567
45 M 36 66 195 301 553 821 897 836 676 421 150 39 4990
45 S 36 102 297 598 1151 1972 2869 3705 4381 4802 4951 4990 4990
50 M 9 14 95 174 400 671 742 681 526 269 47 6 3633
50 S 9 23 118 291 691 1362 2104 2784 3311 3580 3627 3633 3633
55 M 1 0 31 76 253 521 587 526 377 137 7 1 2515
55 S 1 1 32 108 361 882 1469 1994 2371 2508 2515 2515 2515
60 M 0 0 5 21 122 371 432 371 230 45 0 0 1596
60 S 0 0 5 25 147 519 951 1321 1551 1596 1596 1596 1596
Corn Growing Degree Days
50 M 125 149 249 324 471 635 700 667 536 399 261 150 4666
50 S 125 274 523 846 1317 1953 2653 3319 3855 4255 4515 4666 4666
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