BERRYVILLE, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1931 To Year=1987
Station:(440670) BERRYVILLE
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 24 43 152 393 689 904 1064 1024 785 452 188 52 5770
40 S 24 67 219 611 1300 2205 3269 4293 5078 5530 5718 5770 5770
45 M 9 18 81 262 534 754 909 869 635 308 104 22 4505
45 S 9 27 108 370 904 1658 2567 3436 4071 4380 4483 4505 4505
50 M 3 6 37 157 384 604 754 714 486 186 47 8 3386
50 S 3 9 46 202 586 1191 1945 2659 3145 3331 3378 3386 3386
55 M 1 2 15 84 247 455 599 559 343 95 17 2 2418
55 S 1 3 17 101 348 803 1402 1961 2303 2399 2416 2418 2418
60 M 0 0 4 37 136 310 444 404 214 39 5 0 1596
60 S 0 0 5 42 178 488 932 1337 1551 1590 1595 1596 1596
Corn Growing Degree Days
50 M 18 33 110 249 437 595 717 688 505 284 117 35 3788
50 S 18 51 161 410 847 1442 2159 2847 3352 3636 3753 3788 3788
Derived form the 1931-1987 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