MEACHAM WSO AIRPORT, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355396) MEACHAM WSO AIRPORT
From Year=1948 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 3 8 21 73 250 438 723 690 468 210 34 3 2921
40 S 3 11 32 105 355 793 1516 2206 2674 2884 2918 2921 2921
45 M 0 1 5 30 142 296 568 535 328 117 10 0 2032
45 S 0 1 7 36 178 474 1042 1577 1905 2022 2031 2032 2032
50 M 0 0 1 10 70 176 415 384 207 54 2 0 1317
50 S 0 0 1 11 81 256 671 1055 1262 1316 1317 1317 1317
55 M 0 0 0 2 29 90 273 246 114 19 0 0 774
55 S 0 0 0 2 31 122 395 640 755 774 774 774 774
60 M 0 0 0 0 9 38 158 135 52 4 0 0 396
60 S 0 0 0 0 9 47 205 340 392 396 396 396 396
Corn Growing Degree Days
50 M 1 2 11 47 141 249 453 426 280 112 12 0 1734
50 S 1 3 14 61 201 450 903 1329 1609 1721 1733 1734 1734
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