MARTINSVILLE FILTER PLA, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1930 To Year=2012
Station:(445300) MARTINSVILLE FILTER PLA
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 72 82 239 484 750 960 1099 1066 827 507 227 84 6397
40 S 72 154 393 877 1627 2587 3686 4752 5579 6086 6313 6397 6397
45 M 32 36 139 342 595 810 944 911 677 358 128 39 5010
45 S 32 67 206 548 1143 1953 2897 3808 4486 4843 4971 5010 5010
50 M 12 13 71 217 442 660 789 756 528 225 61 15 3788
50 S 12 25 96 312 754 1414 2203 2960 3487 3712 3773 3788 3788
55 M 3 4 31 122 297 510 634 601 381 120 23 5 2731
55 S 3 7 38 160 457 967 1601 2202 2584 2704 2727 2731 2731
60 M 1 1 10 56 173 362 479 446 245 50 6 1 1829
60 S 1 1 12 68 240 602 1082 1528 1773 1822 1828 1829 1829
Corn Growing Degree Days
50 M 55 71 178 327 486 637 744 720 540 337 168 65 4327
50 S 55 126 303 630 1116 1753 2496 3217 3757 4093 4261 4327 4327
Derived form the 1930-2012 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