INNER CANYON USGS, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(024335) INNER CANYON USGS
From Year=1935 To Year=1966
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 199 325 587 854 1155 1393 1598 1494 1279 963 465 231 10542
40 S 199 523 1111 1965 3120 4513 6111 7604 8883 9846 10311 10542 10542
45 M 83 196 434 704 1000 1243 1443 1339 1129 808 318 104 8800
45 S 83 279 712 1416 2416 3659 5102 6441 7570 8378 8696 8800 8800
50 M 21 92 288 554 845 1093 1288 1184 979 653 182 29 7208
50 S 21 113 401 955 1801 2894 4181 5365 6344 6997 7179 7208 7208
55 M 3 31 160 408 690 943 1133 1029 829 499 80 5 5810
55 S 3 35 195 603 1293 2236 3369 4397 5227 5726 5806 5810 5810
60 M 0 7 69 271 536 793 978 874 679 349 26 1 4581
60 S 0 7 76 346 883 1675 2653 3527 4206 4555 4580 4581 4581
Corn Growing Degree Days
50 M 100 178 346 539 741 863 981 936 815 623 263 114 6499
50 S 100 279 625 1164 1904 2767 3749 4685 5500 6122 6385 6499 6499
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