RADFORD, VIRGINIA

Period of Record General Climate Summary - Growing Degree Days

From Year=1968 To Year=2012
Station:(446999) RADFORD
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 21 61 201 404 653 925 986 1011 761 430 161 55 5668
40 S 21 81 282 686 1339 2264 3250 4261 5022 5452 5613 5668 5668
45 M 4 23 111 269 499 775 831 856 611 291 73 22 4364
45 S 4 27 138 407 906 1681 2512 3368 3979 4270 4343 4364 4364
50 M 0 7 52 155 351 625 676 701 462 171 23 7 3229
50 S 0 7 59 214 565 1189 1865 2566 3028 3199 3221 3229 3229
55 M 0 1 23 76 217 475 521 546 314 81 5 1 2259
55 S 0 1 24 100 317 791 1312 1858 2172 2253 2258 2259 2259
60 M 0 0 6 28 113 325 367 391 181 27 1 0 1438
60 S 0 0 6 34 147 471 838 1229 1410 1437 1438 1438 1438
Corn Growing Degree Days
50 M 22 49 141 259 401 610 653 676 475 274 125 35 3720
50 S 22 71 212 471 872 1483 2136 2812 3287 3561 3686 3720 3720
Derived form the 1968-2012 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