CLAY SPRINGS, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(021760) CLAY SPRINGS
From Year=1971 To Year=1987
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 9 32 92 242 455 761 943 893 650 362 103 27 4567
40 S 9 41 132 374 829 1590 2533 3425 4075 4437 4540 4567 4567
45 M 1 7 30 124 306 611 788 738 500 227 40 5 3375
45 S 1 8 38 161 467 1079 1866 2604 3103 3330 3370 3375 3375
50 M 0 0 6 41 172 462 633 583 350 110 10 0 2367
50 S 0 0 6 48 219 681 1314 1896 2247 2357 2367 2367 2367
55 M 0 0 1 7 75 315 478 428 207 37 1 0 1548
55 S 0 0 1 8 84 398 876 1303 1510 1547 1548 1548 1548
60 M 0 0 0 0 22 183 323 273 90 7 0 0 898
60 S 0 0 0 0 22 206 528 801 891 898 898 898 898
Corn Growing Degree Days
50 M 27 53 99 220 346 511 609 578 423 272 109 41 3289
50 S 27 81 180 400 746 1257 1866 2444 2867 3139 3248 3289 3289
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