CONNELL 1 W, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451690) CONNELL 1 W
From Year=1960 To Year=2003
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 22 52 154 319 582 772 1004 979 682 349 87 22 5023
40 S 22 74 228 546 1129 1901 2904 3884 4565 4915 5001 5023 5023
45 M 5 14 58 183 428 622 849 824 532 210 30 5 3758
45 S 5 19 77 259 687 1309 2158 2982 3514 3724 3753 3758 3758
50 M 1 3 14 84 280 472 694 669 384 102 7 1 2712
50 S 1 3 18 102 382 854 1548 2217 2601 2703 2711 2712 2712
55 M 0 1 2 29 157 324 539 515 244 39 1 0 1850
55 S 0 1 2 32 189 513 1051 1566 1810 1849 1850 1850 1850
60 M 0 0 0 7 72 190 385 362 126 10 0 0 1153
60 S 0 0 0 7 79 270 655 1017 1143 1153 1153 1153 1153
Corn Growing Degree Days
50 M 7 26 102 217 377 485 620 607 442 232 35 6 3156
50 S 7 33 135 351 728 1213 1833 2440 2883 3115 3150 3156 3156
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