PIERCE FERRY 17 SSW, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(026538) PIERCE FERRY 17 SSW
From Year=1963 To Year=1984
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 87 146 284 449 798 1092 1335 1264 996 656 279 103 7491
40 S 87 233 518 967 1765 2857 4192 5456 6452 7109 7388 7491 7491
45 M 26 65 165 310 643 942 1180 1109 846 504 165 38 5994
45 S 26 91 256 566 1209 2151 3331 4441 5287 5791 5955 5994 5994
50 M 4 19 80 192 491 792 1025 954 696 359 80 8 4701
50 S 4 23 103 295 786 1578 2603 3558 4254 4613 4693 4701 4701
55 M 0 3 30 102 349 642 870 799 548 228 27 1 3600
55 S 0 4 34 136 485 1127 1997 2797 3344 3572 3600 3600 3600
60 M 0 0 6 42 223 493 715 644 401 121 6 0 2650
60 S 0 0 6 48 271 764 1478 2123 2524 2644 2650 2650 2650
Corn Growing Degree Days
50 M 59 98 176 281 511 715 869 837 661 413 177 72 4868
50 S 59 157 333 614 1125 1840 2709 3545 4207 4619 4796 4868 4868
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