KENT, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454169) KENT
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 85 111 188 311 504 639 787 777 605 376 159 81 4626
40 S 85 197 385 696 1200 1839 2627 3404 4010 4386 4545 4626 4626
45 M 24 33 72 168 349 489 632 622 456 227 62 21 3155
45 S 24 57 129 296 645 1134 1767 2389 2845 3072 3134 3155 3155
50 M 3 5 15 64 201 339 477 467 306 103 12 3 1995
50 S 3 7 22 86 287 626 1104 1571 1877 1981 1993 1995 1995
55 M 0 0 2 17 87 193 323 313 165 28 1 0 1128
55 S 0 0 2 19 106 298 621 934 1099 1127 1128 1128 1128
60 M 0 0 0 3 27 76 173 163 60 3 0 0 506
60 S 0 0 0 3 30 106 279 443 502 506 506 506 506
Corn Growing Degree Days
50 M 17 38 83 162 278 363 482 479 352 181 49 15 2500
50 S 17 55 138 300 578 940 1423 1902 2254 2435 2485 2500 2500
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