RUFF 3 SW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457223) RUFF 3 SW
From Year=1925 To Year=1956
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 6 15 115 326 547 729 982 932 653 331 46 9 4691
40 S 6 21 136 462 1009 1738 2720 3652 4306 4636 4682 4691 4691
45 M 1 2 40 197 394 579 827 777 504 198 11 1 3531
45 S 1 3 43 240 633 1213 2040 2817 3321 3519 3530 3531 3531
50 M 0 0 10 99 252 430 672 622 359 98 1 0 2543
50 S 0 0 11 110 361 791 1463 2085 2444 2542 2543 2543 2543
55 M 0 0 2 40 137 285 517 467 228 38 0 0 1714
55 S 0 0 2 41 179 464 981 1448 1676 1714 1714 1714 1714
60 M 0 0 0 13 60 163 363 316 122 12 0 0 1050
60 S 0 0 0 13 73 236 600 916 1038 1050 1050 1050 1050
Corn Growing Degree Days
50 M 2 8 87 238 368 465 602 579 424 219 24 3 3019
50 S 2 10 97 335 703 1168 1770 2349 2773 2992 3016 3019 3019
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