CENTRALIA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451276) CENTRALIA
From Year=1893 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 80 104 186 309 489 618 777 773 610 393 173 88 4600
40 S 80 184 370 679 1169 1787 2564 3337 3947 4340 4512 4600 4600
45 M 23 32 74 169 335 468 622 618 460 243 70 26 3140
45 S 23 55 129 298 633 1101 1723 2341 2801 3044 3114 3140 3140
50 M 3 6 18 69 189 318 467 463 311 115 17 4 1980
50 S 3 9 27 95 285 603 1070 1533 1844 1959 1976 1980 1980
55 M 0 1 2 20 82 176 312 309 171 35 2 0 1110
55 S 0 1 3 23 105 280 593 901 1072 1107 1109 1110 1110
60 M 0 0 0 4 27 70 166 162 66 6 0 0 501
60 S 0 0 0 4 31 101 267 429 495 500 501 501 501
Corn Growing Degree Days
50 M 15 37 92 174 281 357 476 476 361 198 54 16 2539
50 S 15 52 144 318 600 957 1433 1909 2271 2469 2523 2539 2539
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