GRANDFATHER MOUNTAIN, NORTH CAROLINA

Period of Record General Climate Summary - Growing Degree Days

From Year=1955 To Year=2012
Station:(313565) GRANDFATHER MOUNTAIN
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 19 24 90 226 427 599 718 700 513 271 108 41 3736
40 S 19 43 134 360 787 1385 2103 2803 3315 3586 3695 3736 3736
45 M 4 5 39 130 285 449 563 545 366 153 45 12 2595
45 S 4 10 49 179 463 912 1475 2019 2385 2539 2583 2595 2595
50 M 0 1 13 61 160 302 408 390 227 65 12 2 1640
50 S 0 1 14 75 235 537 945 1335 1561 1627 1638 1640 1640
55 M 0 0 2 20 66 165 254 237 110 17 1 0 874
55 S 0 0 2 22 89 254 508 746 856 872 874 874 874
60 M 0 0 0 3 15 59 114 102 32 2 0 0 326
60 S 0 0 0 3 17 76 190 293 325 326 326 326 326
Corn Growing Degree Days
50 M 3 6 35 104 199 315 410 393 249 107 33 8 1862
50 S 3 10 44 148 347 662 1072 1465 1714 1821 1854 1862 1862
Derived form the 1955-2012 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