NEPTUNE 3 S, TENNESSEE

Period of Record General Climate Summary - Growing Degree Days

From Year=1971 To Year=2012
Station:(401663) NEPTUNE 3 S
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 92 135 333 508 772 1000 1169 1138 896 565 281 114 7002
40 S 92 227 560 1068 1840 2840 4009 5147 6042 6607 6888 7002 7002
45 M 47 72 215 370 617 850 1014 983 746 414 177 53 5557
45 S 47 119 334 703 1320 2170 3184 4167 4913 5327 5504 5557 5557
50 M 20 34 123 246 463 700 859 828 596 278 99 20 4266
50 S 20 54 177 422 886 1586 2445 3273 3869 4147 4246 4266 4266
55 M 7 12 60 145 318 550 704 673 449 165 46 5 3133
55 S 7 19 79 224 542 1092 1796 2469 2918 3082 3128 3133 3133
60 M 1 3 23 74 191 401 549 518 308 81 16 0 2165
60 S 1 4 27 101 292 693 1242 1760 2068 2149 2165 2165 2165
Corn Growing Degree Days
50 M 65 102 230 340 500 668 785 757 587 372 191 78 4676
50 S 65 167 397 737 1237 1905 2690 3447 4034 4407 4598 4676 4676
Derived form the 1971-2012 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