WALNUT CANYON NATL M, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029156) WALNUT CANYON NATL MONU
From Year=1910 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 11 19 129 236 520 768 993 882 656 327 107 24 4671
40 S 11 30 159 395 915 1682 2675 3557 4213 4540 4647 4671 4671
45 M 1 3 52 125 373 618 838 727 506 193 41 5 3479
45 S 1 4 55 180 553 1170 2008 2735 3241 3434 3475 3479 3479
50 M 0 0 13 49 239 468 683 572 358 87 10 0 2479
50 S 0 0 14 63 301 769 1452 2024 2382 2469 2479 2479 2479
55 M 0 0 2 12 129 321 528 417 217 26 1 0 1653
55 S 0 0 2 13 143 464 992 1409 1625 1652 1653 1653 1653
60 M 0 0 0 1 53 189 373 263 99 5 0 0 985
60 S 0 0 0 1 55 244 617 880 979 985 985 985 985
Corn Growing Degree Days
50 M 24 29 122 186 350 516 646 568 432 261 108 37 3279
50 S 24 53 176 361 711 1228 1873 2441 2873 3134 3243 3279 3279
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