ARLINGTON, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(450257) ARLINGTON
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 35 145 -99 317 385 530 688 672 -99 479 141 56 -99
40 S 35 179 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
45 M 7 50 -99 185 231 380 533 517 -99 327 56 16 -99
45 S 7 57 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
50 M 1 7 -99 89 95 234 378 362 -99 211 8 2 -99
50 S 1 8 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
55 M 0 0 -99 32 23 109 226 208 -99 160 1 0 -99
55 S 0 0 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
60 M 0 0 -99 5 5 31 102 77 -99 149 0 0 -99
60 S 0 0 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
Corn Growing Degree Days
50 M 7 75 -99 189 193 294 387 366 -99 503 65 13 -99
50 S 7 81 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99 -99
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 Jul 28, 2006
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