WILLOW BEACH, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029376) WILLOW BEACH
From Year=1967 To Year=2007
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 361 469 706 918 1253 1488 1711 1655 1382 1049 610 363 11964
40 S 361 830 1536 2454 3707 5195 6906 8560 9943 10991 11602 11964 11964
45 M 215 330 551 768 1098 1338 1556 1500 1232 894 460 217 10159
45 S 215 545 1096 1864 2962 4300 5856 7355 8588 9481 9942 10159 10159
50 M 93 198 397 618 943 1188 1401 1345 1082 739 314 95 8413
50 S 93 291 688 1306 2249 3437 4838 6182 7265 8003 8318 8413 8413
55 M 23 90 251 468 788 1038 1246 1190 932 584 184 22 6817
55 S 23 112 364 832 1620 2658 3904 5094 6026 6610 6794 6817 6817
60 M 2 27 131 324 633 888 1091 1035 782 431 84 2 5430
60 S 2 28 160 484 1117 2005 3096 4130 4913 5344 5428 5430 5430
Corn Growing Degree Days
50 M 213 277 427 577 784 888 1021 998 848 663 367 214 7276
50 S 213 490 917 1493 2277 3166 4187 5185 6033 6696 7062 7276 7276
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