KITT PEAK, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(024675) KITT PEAK
From Year=1960 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 124 132 207 361 614 868 948 893 777 552 273 143 5894
40 S 124 256 463 824 1439 2307 3255 4148 4925 5477 5751 5894 5894
45 M 52 62 114 237 462 718 793 738 627 404 161 66 4434
45 S 52 114 228 464 927 1645 2438 3176 3803 4207 4368 4434 4434
50 M 15 20 51 132 318 569 638 583 477 266 75 20 3163
50 S 15 34 85 217 535 1103 1741 2325 2802 3068 3144 3163 3163
55 M 2 3 15 57 190 421 483 428 329 148 24 3 2103
55 S 2 5 20 77 267 688 1171 1599 1928 2076 2100 2103 2103
60 M 0 0 2 17 88 280 328 274 189 61 4 0 1245
60 S 0 0 3 20 108 387 716 990 1179 1241 1245 1245 1245
Corn Growing Degree Days
50 M 53 62 104 196 359 567 631 582 481 301 128 63 3527
50 S 53 114 218 414 774 1341 1972 2554 3035 3336 3464 3527 3527
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