BLACK MTN MISSION, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020800) BLACK MOUNTAIN MISSION
From Year=1952 To Year=1965
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 3 31 96 253 584 887 1078 967 710 449 97 8 5162
40 S 3 34 131 384 968 1855 2932 3899 4609 5058 5155 5162 5162
45 M 0 7 37 147 430 737 923 812 560 305 35 0 3992
45 S 0 7 44 191 621 1357 2280 3091 3651 3956 3991 3992 3992
50 M 0 0 7 71 287 587 768 657 414 173 8 0 2971
50 S 0 0 8 78 365 952 1720 2376 2790 2964 2971 2971 2971
55 M 0 0 0 23 162 437 613 502 274 70 0 0 2080
55 S 0 0 0 23 185 622 1235 1736 2010 2080 2080 2080 2080
60 M 0 0 0 2 60 290 458 347 147 19 0 0 1322
60 S 0 0 0 2 62 352 810 1156 1304 1322 1322 1322 1322
Corn Growing Degree Days
50 M 2 28 85 192 375 571 705 630 445 279 76 10 3399
50 S 2 30 116 307 682 1253 1959 2588 3034 3313 3389 3399 3399
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