EVERETT JR COLLEGE, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(452675) EVERETT JR COLLEGE
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 74 93 161 278 459 591 721 725 556 350 155 78 4240
40 S 74 167 327 605 1064 1654 2375 3100 3656 4006 4161 4240 4240
45 M 17 26 55 139 304 441 566 570 406 202 60 20 2805
45 S 17 44 98 237 541 982 1548 2117 2524 2725 2785 2805 2805
50 M 2 4 10 46 160 291 411 415 258 85 13 2 1696
50 S 2 6 16 62 222 513 924 1339 1597 1681 1694 1696 1696
55 M 0 0 1 10 59 149 257 260 122 20 1 0 880
55 S 0 0 1 11 71 219 476 736 858 879 880 880 880
60 M 0 0 0 1 15 49 115 118 34 2 0 0 334
60 S 0 0 0 1 16 65 180 298 332 334 334 334 334
Corn Growing Degree Days
50 M 14 28 60 123 221 308 416 423 299 158 44 13 2107
50 S 14 41 101 224 446 753 1170 1592 1891 2049 2093 2107 2107
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