CHARLOTTESVILLE 1 SW, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1930 To Year=1971
Station:(441598) CHARLOTTESVILLE 1 SW
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 74 84 229 500 826 1006 1150 1109 900 587 274 94 6831
40 S 74 158 386 886 1712 2718 3868 4977 5876 6464 6737 6831 6831
45 M 33 40 134 358 671 856 995 954 750 436 167 44 5437
45 S 33 72 207 565 1236 2092 3086 4041 4790 5226 5393 5437 5437
50 M 13 16 69 234 517 706 840 799 600 292 89 17 4193
50 S 13 29 98 332 849 1555 2395 3194 3794 4086 4175 4193 4193
55 M 3 6 32 137 369 556 685 644 452 172 38 5 3099
55 S 3 9 41 178 547 1103 1788 2432 2884 3056 3094 3099 3099
60 M 1 2 12 70 235 407 530 489 311 83 12 1 2153
60 S 1 2 14 85 319 727 1257 1746 2057 2140 2152 2153 2153
Corn Growing Degree Days
50 M 46 56 145 304 526 673 784 754 587 354 158 53 4440
50 S 46 101 247 551 1077 1749 2533 3287 3874 4228 4386 4440 4440
Derived form the 1930-1971 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