DAVIS DAM, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022440) DAVIS DAM
From Year=1948 To Year=1961
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 340 459 661 904 1146 1375 1602 1525 1333 1031 635 435 11447
40 S 340 799 1460 2364 3511 4886 6488 8013 9346 10377 11012 11447 11447
45 M 203 323 506 754 991 1225 1447 1370 1183 876 485 283 9647
45 S 203 525 1032 1786 2777 4002 5449 6819 8002 8878 9363 9647 9647
50 M 97 199 354 604 836 1075 1292 1215 1033 721 339 154 7920
50 S 97 296 650 1254 2091 3166 4458 5673 6706 7427 7766 7920 7920
55 M 34 96 215 455 681 925 1137 1060 883 566 207 60 6319
55 S 34 130 344 799 1481 2406 3543 4603 5486 6052 6259 6319 6319
60 M 6 36 103 310 527 775 982 905 733 414 100 16 4907
60 S 6 42 145 455 982 1758 2740 3645 4378 4791 4892 4907 4907
Corn Growing Degree Days
50 M 187 283 414 576 724 833 968 923 796 646 391 247 6990
50 S 187 470 885 1461 2185 3018 3987 4909 5705 6352 6743 6990 6990
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