ARIZONA FALLS 1 WNW, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(021161) ARIZONA FALLS 1 WNW
From Year=1920 To Year=1963
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 366 444 637 831 1087 1309 1533 1485 1300 1000 613 415 11019
40 S 366 810 1446 2278 3365 4674 6207 7692 8991 9991 10604 11019 11019
45 M 222 306 482 681 932 1159 1378 1330 1150 845 463 265 9212
45 S 222 528 1009 1691 2623 3781 5159 6489 7639 8484 8947 9212 9212
50 M 103 178 328 532 777 1009 1223 1175 1000 690 317 135 7467
50 S 103 281 610 1141 1918 2927 4150 5325 6325 7015 7332 7467 7467
55 M 31 79 188 384 622 859 1068 1020 850 536 186 47 5869
55 S 31 110 299 682 1304 2163 3231 4251 5101 5637 5822 5869 5869
60 M 5 23 81 246 468 709 913 865 700 384 83 10 4487
60 S 5 28 109 355 823 1532 2445 3310 4010 4394 4477 4487 4487
Corn Growing Degree Days
50 M 266 306 423 524 653 765 933 920 800 627 412 289 6917
50 S 266 573 996 1519 2173 2937 3870 4789 5589 6216 6628 6917 6917
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