STAMPEDE PASS WSCMO, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458009) STAMPEDE PASS WSCMO
From Year=1944 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 2 2 12 42 154 285 495 510 343 133 7 1 1985
40 S 2 4 16 58 211 496 991 1501 1844 1977 1984 1985 1985
45 M 1 0 3 16 80 169 345 358 216 64 1 0 1251
45 S 1 1 4 19 99 268 613 970 1186 1250 1251 1251 1251
50 M 0 0 0 4 35 89 216 223 121 25 0 0 714
50 S 0 0 0 5 40 129 345 568 689 714 714 714 714
55 M 0 0 0 1 13 41 117 122 57 8 0 0 360
55 S 0 0 0 1 14 56 173 295 352 360 360 360 360
60 M 0 0 0 0 4 16 54 57 21 1 0 0 153
60 S 0 0 0 0 4 20 74 131 152 153 153 153 153
Corn Growing Degree Days
50 M 1 1 4 19 72 134 258 262 160 49 1 0 959
50 S 1 1 5 23 95 229 487 749 909 958 959 959 959
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