CENTRALIA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451276) CENTRALIA
From Year=1931 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 87 110 191 319 505 629 786 784 627 400 173 95 4707
40 S 87 197 388 707 1212 1841 2628 3412 4039 4438 4612 4707 4707
45 M 26 35 76 177 350 479 631 629 477 250 71 28 3229
45 S 26 61 137 314 664 1143 1775 2404 2881 3131 3201 3229 3229
50 M 3 6 18 73 203 329 476 474 328 120 17 4 2053
50 S 3 10 28 101 304 633 1110 1584 1912 2032 2049 2053 2053
55 M 0 1 2 21 91 185 322 320 185 39 2 0 1167
55 S 0 1 3 24 115 300 622 941 1126 1165 1167 1167 1167
60 M 0 0 0 4 30 76 174 171 74 6 0 0 536
60 S 0 0 0 4 34 110 285 456 529 536 536 536 536
Corn Growing Degree Days
50 M 17 39 92 175 287 361 480 480 370 201 52 16 2570
50 S 17 56 148 323 610 971 1451 1931 2301 2502 2554 2570 2570
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