MOUNT AIRY, NORTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1893 To Year=2012
Station:(315890) MOUNT AIRY
Averages Daily Extremes
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 77 91 262 488 765 965 1101 1067 858 548 243 90 6555
40 S 77 168 430 917 1682 2648 3749 4816 5674 6222 6465 6555 6555
45 M 32 39 152 344 610 815 946 912 708 397 138 38 5131
45 S 32 71 223 568 1178 1993 2940 3852 4559 4956 5094 5131 5131
50 M 11 12 76 216 456 665 791 757 558 258 65 13 3880
50 S 11 24 99 316 772 1437 2229 2986 3543 3802 3867 3880 3880
55 M 3 3 31 115 309 516 636 602 410 144 24 3 2795
55 S 3 6 37 152 461 977 1613 2215 2625 2769 2792 2795 2795
60 M 0 0 9 49 179 367 481 447 270 63 6 0 1873
60 S 0 1 10 59 238 605 1086 1533 1803 1867 1873 1873 1873
Corn Growing Degree Days
50 M 55 72 183 319 493 641 746 722 562 358 171 65 4386
50 S 55 127 310 629 1121 1762 2508 3230 3792 4150 4321 4386 4386
Derived form the 1893-2012 Data
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 May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster