ORACLE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(026116) ORACLE
From Year=1893 To Year=1949
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 211 246 390 590 852 1109 1235 1167 1009 735 433 238 8214
40 S 211 457 847 1436 2289 3398 4633 5799 6808 7543 7976 8214 8214
45 M 102 133 249 442 697 959 1080 1012 859 580 293 124 6530
45 S 102 236 484 926 1623 2582 3662 4674 5533 6113 6406 6530 6530
50 M 33 55 132 300 543 809 925 857 709 427 171 48 5008
50 S 33 88 220 519 1062 1871 2796 3653 4362 4789 4960 5008 5008
55 M 6 14 53 175 391 659 770 702 559 282 77 10 3699
55 S 6 20 73 249 640 1299 2069 2771 3330 3612 3689 3699 3699
60 M 1 2 15 82 248 509 615 547 409 156 23 1 2606
60 S 1 2 17 99 347 856 1471 2018 2427 2583 2605 2606 2606
Corn Growing Degree Days
50 M 121 145 238 371 551 717 823 793 679 459 250 134 5282
50 S 121 267 505 876 1427 2144 2967 3760 4439 4898 5148 5282 5282
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