WILLIAMS 1 NW, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(359390) WILLIAMS 1 N
From Year=1892 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 52 77 157 284 458 634 823 798 594 367 140 62 4447
40 S 52 129 286 570 1028 1661 2485 3283 3877 4244 4384 4447 4447
45 M 14 20 64 154 304 484 668 643 444 220 53 16 3084
45 S 14 34 98 252 556 1040 1708 2352 2795 3015 3068 3084 3084
50 M 3 2 17 68 168 336 513 488 297 103 13 1 2009
50 S 3 6 22 91 259 594 1108 1596 1893 1995 2008 2009 2009
55 M 2 0 2 22 75 195 359 334 164 36 1 0 1189
55 S 2 2 3 25 100 295 653 988 1152 1187 1188 1189 1189
60 M 1 0 0 4 22 85 209 189 68 8 0 0 586
60 S 1 1 1 5 27 112 321 511 578 586 586 586 586
Corn Growing Degree Days
50 M 19 48 104 195 290 410 527 506 388 253 79 18 2837
50 S 19 67 171 366 656 1066 1593 2099 2487 2740 2819 2837 2837
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