ASHWOOD, TENNESSEE

Period of Record General Climate Summary - Growing Degree Days

From Year=1890 To Year=1977
Station:(400271) ASHWOOD
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 141 155 342 573 841 1043 1169 1136 940 629 305 151 7425
40 S 141 296 639 1212 2053 3096 4265 5400 6341 6970 7274 7425 7425
45 M 77 85 226 428 686 893 1014 981 790 477 194 81 5933
45 S 77 163 389 817 1503 2396 3410 4391 5181 5658 5852 5933 5933
50 M 37 41 133 295 531 743 859 826 641 334 109 38 4587
50 S 37 78 211 506 1037 1780 2639 3465 4106 4440 4549 4587 4587
55 M 15 16 69 180 380 593 704 671 492 210 52 14 3396
55 S 15 30 99 280 660 1253 1957 2628 3120 3329 3381 3396 3396
60 M 4 4 29 94 241 444 549 516 348 111 19 3 2363
60 S 4 8 37 131 372 816 1365 1881 2229 2340 2359 2363 2363
Corn Growing Degree Days
50 M 80 92 210 358 547 707 801 776 628 406 187 84 4875
50 S 80 172 382 740 1287 1994 2795 3571 4198 4604 4791 4875 4875
Derived form the 1890-1977 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