BULLHEAD CITY, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(021050) BULLHEAD CITY
From Year=1977 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 459 525 755 967 1289 1511 1735 1698 1432 1088 674 440 12572
40 S 459 984 1738 2705 3993 5505 7240 8938 10370 11458 12132 12572 12572
45 M 306 385 600 817 1134 1361 1580 1543 1282 933 524 288 10752
45 S 306 691 1291 2107 3241 4602 6182 7725 9007 9940 10464 10752 10752
50 M 164 249 445 667 979 1211 1425 1388 1132 778 376 149 8962
50 S 164 413 858 1524 2503 3714 5139 6527 7659 8437 8813 8962 8962
55 M 60 130 294 517 824 1061 1270 1233 982 623 238 52 7283
55 S 60 190 484 1001 1825 2886 4156 5389 6371 6994 7232 7283 7283
60 M 13 48 162 370 669 911 1115 1078 832 469 124 10 5800
60 S 13 61 223 593 1261 2172 3288 4365 5197 5666 5790 5800 5800
Corn Growing Degree Days
50 M 256 314 470 603 790 885 1027 1019 866 686 416 247 7579
50 S 256 570 1040 1643 2432 3318 4345 5364 6231 6916 7332 7579 7579
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