STERLING R & D CENTER, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1977 To Year=2012
Station:(448084) STERLING R & D CENTER
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 36 45 159 392 680 922 1091 1049 800 453 200 56 5884
40 S 36 81 241 633 1313 2235 3326 4375 5175 5628 5828 5884 5884
45 M 16 19 88 259 526 772 936 894 650 308 111 26 4604
45 S 16 35 123 382 907 1679 2615 3509 4159 4467 4578 4604 4604
50 M 7 6 44 153 375 622 781 739 500 188 52 11 3480
50 S 7 14 58 211 586 1208 1989 2728 3228 3416 3469 3480 3480
55 M 3 2 20 81 240 472 626 584 356 100 20 4 2506
55 S 3 4 24 105 345 817 1443 2027 2383 2483 2502 2506 2506
60 M 1 0 8 36 133 327 471 430 224 42 6 1 1677
60 S 1 1 9 45 177 504 975 1405 1629 1671 1676 1677 1677
Corn Growing Degree Days
50 M 28 36 113 248 425 610 735 705 519 291 132 40 3881
50 S 28 64 177 425 850 1459 2195 2900 3418 3709 3841 3881 3881
Derived form the 1977-2012 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