MESA, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(025467) MESA
From Year=1896 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 334 404 588 784 1058 1300 1515 1460 1250 947 563 360 10563
40 S 334 739 1327 2111 3169 4469 5984 7444 8693 9640 10203 10563 10563
45 M 195 269 434 634 903 1150 1360 1305 1100 792 414 217 8772
45 S 195 464 897 1531 2434 3585 4945 6249 7349 8141 8555 8772 8772
50 M 86 149 285 484 748 1000 1205 1150 950 637 273 100 7068
50 S 86 235 520 1005 1753 2754 3958 5108 6058 6695 6968 7068 7068
55 M 24 62 158 339 593 850 1050 995 800 484 150 30 5534
55 S 24 86 244 582 1176 2026 3076 4071 4870 5354 5504 5534 5534
60 M 3 17 67 207 440 700 895 840 650 335 61 4 4220
60 S 3 20 87 294 734 1435 2330 3169 3819 4154 4216 4220 4220
Corn Growing Degree Days
50 M 238 273 382 497 647 766 928 909 772 599 379 257 6648
50 S 238 511 894 1390 2038 2803 3732 4641 5413 6012 6391 6648 6648
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 Jul 28, 2006
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