INCHELIUM 2 NW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(453903) INCHELIUM 2 NW
From Year=1953 To Year=1975
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 1 5 36 185 460 650 844 815 538 198 20 1 3753
40 S 1 6 42 227 687 1337 2181 2996 3534 3732 3752 3753 3753
45 M 0 0 7 77 309 500 689 660 390 90 2 0 2723
45 S 0 0 7 84 393 893 1582 2242 2631 2721 2723 2723 2723
50 M 0 0 1 23 178 351 534 505 249 28 0 0 1869
50 S 0 0 1 23 202 553 1087 1591 1840 1869 1869 1869 1869
55 M 0 0 0 4 83 211 380 351 132 4 0 0 1166
55 S 0 0 0 4 87 299 679 1030 1161 1166 1166 1166 1166
60 M 0 0 0 1 27 100 233 206 54 0 0 0 621
60 S 0 0 0 1 28 128 361 567 621 621 621 621 621
Corn Growing Degree Days
50 M 0 4 37 148 316 414 531 514 369 141 7 0 2480
50 S 0 4 41 189 505 919 1449 1963 2332 2473 2479 2480 2480
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