FLORENCE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(023027) FLORENCE
From Year=1892 To Year=2009
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 371 436 623 818 1100 1337 1559 1501 1305 994 602 391 11038
40 S 371 806 1429 2248 3348 4685 6244 7745 9050 10045 10647 11038 11038
45 M 228 298 468 668 945 1187 1404 1346 1155 839 453 247 9240
45 S 228 526 994 1663 2608 3795 5199 6545 7700 8540 8993 9240 9240
50 M 110 173 318 519 790 1037 1249 1191 1005 685 310 125 7512
50 S 110 283 601 1120 1910 2947 4196 5387 6392 7077 7387 7512 7512
55 M 37 78 185 371 635 887 1094 1036 855 530 184 46 5938
55 S 37 114 299 671 1306 2193 3287 4323 5178 5709 5893 5938 5938
60 M 8 24 85 234 481 737 939 881 705 380 87 10 4571
60 S 8 31 117 351 832 1569 2508 3389 4094 4474 4561 4571 4571
Corn Growing Degree Days
50 M 256 299 415 521 659 774 949 926 800 627 404 270 6900
50 S 256 555 970 1491 2150 2924 3873 4798 5599 6226 6630 6900 6900
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