FORT LEE, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1950 To Year=1970
Station:(443127) FORT LEE
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 90 105 239 521 797 1002 1153 1114 873 581 286 115 6875
40 S 90 195 434 955 1752 2754 3906 5021 5893 6474 6760 6875 6875
45 M 45 53 140 376 642 852 998 959 723 429 178 62 5455
45 S 45 97 237 613 1255 2107 3105 4064 4787 5215 5393 5455 5455
50 M 20 23 74 251 488 702 843 804 573 287 100 30 4193
50 S 20 44 117 368 856 1558 2401 3205 3778 4064 4164 4193 4193
55 M 7 8 36 155 340 552 688 649 424 169 45 12 3084
55 S 7 15 51 205 545 1097 1785 2434 2858 3027 3072 3084 3084
60 M 2 2 14 85 211 403 533 494 284 84 16 4 2132
60 S 2 4 17 103 314 717 1250 1744 2028 2112 2128 2132 2132
Corn Growing Degree Days
50 M 59 70 157 330 509 667 790 764 571 360 183 71 4533
50 S 59 129 286 617 1126 1793 2583 3347 3918 4278 4461 4533 4533
Derived form the 1950-1970 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