GRUNDY, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1942 To Year=2012
Station:(443640) GRUNDY
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 61 86 237 450 720 929 1072 1056 840 507 239 85 6283
40 S 61 147 384 834 1554 2483 3555 4611 5451 5959 6198 6283 6283
45 M 26 39 139 316 565 779 917 901 690 361 138 39 4910
45 S 26 65 204 519 1085 1864 2781 3682 4372 4733 4871 4910 4910
50 M 9 14 70 200 414 629 762 746 541 230 68 14 3696
50 S 9 23 93 293 706 1335 2097 2843 3384 3614 3682 3696 3696
55 M 2 4 27 110 272 479 607 591 393 126 26 3 2640
55 S 2 6 33 143 415 894 1502 2092 2485 2611 2637 2640 2640
60 M 0 1 7 49 152 332 452 436 254 55 7 1 1744
60 S 0 1 8 57 208 540 993 1428 1682 1737 1744 1744 1744
Corn Growing Degree Days
50 M 47 73 178 305 459 613 726 717 543 334 173 64 4232
50 S 47 120 298 603 1062 1675 2402 3118 3661 3995 4168 4232 4232
Derived form the 1942-2012 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