WINSLOW MUNI AP, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029439) WINSLOW WSO AP
From Year=1893 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 26 72 211 413 694 962 1175 1105 860 509 149 30 6205
40 S 26 98 309 722 1416 2378 3552 4658 5517 6026 6175 6205 6205
45 M 6 22 105 273 539 812 1020 950 710 361 65 8 4870
45 S 6 28 133 406 945 1757 2777 3727 4437 4797 4863 4870 4870
50 M 1 4 37 154 388 662 865 795 560 225 19 1 3710
50 S 1 4 42 195 583 1245 2110 2905 3465 3690 3709 3710 3710
55 M 0 0 8 66 247 512 710 640 411 114 3 0 2712
55 S 0 0 8 74 321 833 1543 2183 2594 2708 2712 2712 2712
60 M 0 0 1 18 127 365 555 485 266 40 0 0 1857
60 S 0 0 1 18 145 510 1064 1550 1816 1856 1857 1857 1857
Corn Growing Degree Days
50 M 38 88 192 307 464 594 743 715 555 358 145 42 4241
50 S 38 125 317 624 1089 1683 2426 3140 3696 4054 4199 4241 4241
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