TUCSON CP AVE EXP FM, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(028796) TUCSON CAMP AVE EXP FM
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 334 375 560 745 1020 1261 1437 1386 1211 911 528 332 10099
40 S 334 709 1269 2014 3034 4295 5732 7118 8329 9240 9768 10099 10099
45 M 194 243 407 595 865 1111 1282 1231 1061 756 381 193 8318
45 S 194 437 844 1439 2304 3415 4697 5928 6989 7745 8126 8318 8318
50 M 83 129 263 446 710 961 1127 1076 911 601 243 84 6635
50 S 83 213 476 922 1631 2592 3719 4795 5706 6307 6551 6635 6635
55 M 23 50 141 302 555 811 972 921 761 448 126 23 5132
55 S 23 72 213 515 1070 1881 2852 3774 4535 4983 5109 5132 5132
60 M 3 10 55 173 402 661 817 766 611 301 46 3 3848
60 S 3 13 68 241 643 1304 2121 2887 3498 3799 3845 3848 3848
Corn Growing Degree Days
50 M 262 282 392 493 626 744 900 878 756 579 378 264 6554
50 S 262 543 935 1428 2055 2799 3699 4576 5333 5912 6290 6554 6554
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