HARRINGTON 1 NW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(453515) HARRINGTON 4 ENE
From Year=1961 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 3 10 61 185 404 591 810 795 534 218 32 3 3648
40 S 3 13 74 259 663 1254 2064 2860 3394 3612 3645 3648 3648
45 M 0 1 15 88 259 442 655 640 387 110 7 0 2604
45 S 0 1 16 104 363 804 1459 2099 2486 2597 2604 2604 2604
50 M 0 0 2 33 140 295 500 486 250 45 1 0 1752
50 S 0 0 2 35 175 470 970 1455 1706 1751 1751 1752 1752
55 M 0 0 0 9 61 167 348 334 138 15 0 0 1072
55 S 0 0 0 9 70 237 585 920 1057 1072 1072 1072 1072
60 M 0 0 0 2 21 78 209 197 60 4 0 0 569
60 S 0 0 0 2 22 100 309 506 566 569 569 569 569
Corn Growing Degree Days
50 M 0 4 40 135 276 385 521 515 364 158 11 0 2410
50 S 0 4 44 179 455 840 1362 1877 2241 2399 2410 2410 2410
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