KEAMS CANYON, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(024586) KEAMS CANYON
From Year=1894 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 7 24 99 262 497 763 990 924 685 372 92 9 4724
40 S 7 30 129 391 889 1652 2642 3566 4251 4623 4715 4724 4724
45 M 1 5 33 142 347 613 835 769 535 233 30 1 3545
45 S 1 6 39 181 528 1142 1977 2746 3281 3514 3544 3545 3545
50 M 0 1 7 56 211 464 680 614 387 117 5 0 2541
50 S 0 1 8 64 275 738 1418 2033 2420 2536 2541 2541 2541
55 M 0 0 1 14 100 317 525 459 244 41 0 0 1703
55 S 0 0 1 14 115 432 957 1417 1661 1702 1703 1703 1703
60 M 0 0 0 1 31 183 370 305 119 8 0 0 1018
60 S 0 0 0 1 33 216 586 891 1010 1018 1018 1018 1018
Corn Growing Degree Days
50 M 13 37 113 228 361 503 632 598 452 278 105 19 3340
50 S 13 50 164 392 753 1256 1888 2486 2938 3216 3321 3340 3340
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