GOULDS RANCH, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(023573) GOULDS RANCH
From Year=1915 To Year=1960
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 345 429 631 818 1104 1321 1550 1492 1298 980 584 390 10941
40 S 345 774 1405 2223 3327 4648 6198 7689 8987 9967 10551 10941 10941
45 M 204 290 476 668 949 1171 1395 1337 1148 825 434 242 9139
45 S 204 494 971 1639 2588 3759 5154 6490 7638 8463 8897 9139 9139
50 M 91 165 325 518 794 1021 1240 1182 998 670 290 119 7411
50 S 91 256 581 1099 1893 2914 4154 5335 6333 7003 7292 7411 7411
55 M 27 70 187 371 639 871 1085 1027 848 515 160 38 5837
55 S 27 97 284 655 1294 2165 3250 4276 5124 5639 5799 5837 5837
60 M 4 19 81 232 485 721 930 872 698 363 66 8 4479
60 S 4 24 105 337 823 1543 2473 3345 4042 4406 4471 4479 4479
Corn Growing Degree Days
50 M 255 298 425 513 657 766 942 918 789 612 403 283 6861
50 S 255 552 977 1490 2147 2913 3855 4773 5562 6175 6578 6861 6861
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