SHOW LOW MUNI AP, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027855) SHOW LOW AIRPORT
From Year=1965 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 22 47 147 302 563 828 991 919 724 412 132 30 5119
40 S 22 69 217 519 1082 1910 2901 3820 4544 4956 5089 5119 5119
45 M 4 11 63 177 411 678 836 764 574 271 56 7 3852
45 S 4 15 78 256 667 1344 2181 2945 3519 3790 3846 3852 3852
50 M 0 2 17 82 266 528 681 609 425 148 15 1 2774
50 S 0 2 19 101 367 895 1576 2185 2610 2758 2773 2774 2774
55 M 0 0 2 24 141 379 526 454 279 60 2 0 1868
55 S 0 0 2 26 167 546 1073 1527 1806 1866 1868 1868 1868
60 M 0 0 0 4 55 237 372 300 144 14 0 0 1125
60 S 0 0 0 4 58 295 667 967 1111 1125 1125 1125 1125
Corn Growing Degree Days
50 M 28 55 131 226 377 538 649 601 459 279 115 34 3492
50 S 28 84 214 440 818 1356 2005 2605 3064 3343 3458 3492 3492
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