LONGVIEW, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(454769) LONGVIEW
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 70 100 183 297 475 599 756 766 629 410 169 79 4532
40 S 70 169 352 649 1124 1722 2478 3245 3874 4284 4453 4532 4532
45 M 18 30 71 158 320 449 601 611 479 259 67 20 3083
45 S 18 47 119 276 597 1045 1646 2258 2737 2995 3063 3083 3083
50 M 2 5 17 63 177 299 446 456 330 126 15 2 1938
50 S 2 7 24 87 264 562 1009 1465 1795 1921 1936 1938 1938
55 M 0 0 2 18 77 159 292 302 187 41 1 0 1080
55 S 0 0 2 21 97 256 548 850 1037 1078 1079 1080 1080
60 M 0 0 0 4 27 62 149 155 78 7 0 0 481
60 S 0 0 0 4 30 92 242 397 474 481 481 481 481
Corn Growing Degree Days
50 M 13 40 91 162 268 340 457 466 368 210 55 13 2484
50 S 13 54 144 307 575 914 1371 1837 2205 2415 2471 2484 2484
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