WAHWEAP, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(029114) WAHWEAP
From Year=1961 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 35 113 328 561 906 1171 1397 1318 1024 659 241 37 7788
40 S 35 148 476 1037 1943 3114 4510 5828 6851 7511 7751 7788 7788
45 M 6 40 191 413 751 1021 1242 1163 874 506 124 8 6338
45 S 6 46 237 650 1401 2422 3664 4826 5700 6206 6330 6338 6338
50 M 1 9 88 274 597 871 1087 1008 724 357 46 1 5062
50 S 1 10 98 372 969 1840 2926 3934 4657 5014 5060 5062 5062
55 M 0 1 31 156 444 721 932 853 574 219 10 0 3940
55 S 0 1 32 188 632 1353 2284 3137 3711 3930 3940 3940 3940
60 M 0 0 6 70 300 571 777 698 425 108 1 0 2956
60 S 0 0 6 76 376 947 1724 2421 2846 2954 2956 2956 2956
Corn Growing Degree Days
50 M 25 73 207 352 580 743 888 856 673 395 133 22 4947
50 S 25 98 305 656 1237 1980 2868 3724 4397 4792 4925 4947 4947
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