DRYDEN, TEXAS

Period of Record General Climate Summary - Growing Degree Days

Station:(412590) DRYDEN
From Year=1966 To Year=1994
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 243 314 597 842 1091 1246 1335 1304 1089 815 465 270 9613
40 S 243 557 1155 1997 3088 4335 5669 6974 8062 8877 9342 9613 9613
45 M 137 196 448 693 936 1096 1180 1149 939 660 328 153 7916
45 S 137 333 781 1474 2410 3507 4686 5836 6774 7435 7763 7916 7916
50 M 62 102 308 544 781 946 1025 994 789 507 208 69 6336
50 S 62 164 472 1016 1797 2743 3768 4763 5551 6059 6267 6336 6336
55 M 21 41 183 400 626 796 870 839 640 360 110 20 4905
55 S 21 63 245 645 1271 2067 2937 3776 4416 4776 4885 4905 4905
60 M 4 10 87 264 472 646 715 684 492 223 44 3 3643
60 S 4 14 101 364 836 1482 2197 2881 3373 3597 3640 3643 3643
Corn Growing Degree Days
50 M 184 222 391 543 714 815 874 855 717 521 304 200 6340
50 S 184 407 798 1340 2054 2869 3743 4598 5315 5836 6140 6340 6340
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 Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu