CUSHMAN DAM, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451934) CUSHMAN DAM
From Year=1931 To Year=1973
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 39 61 112 256 471 596 760 755 605 385 137 56 4232
40 S 39 100 212 468 938 1534 2295 3049 3654 4040 4176 4232 4232
45 M 7 14 36 131 318 446 605 600 455 238 49 11 2909
45 S 7 21 57 188 506 952 1557 2157 2611 2849 2898 2909 2909
50 M 1 2 8 51 181 297 450 445 306 117 10 1 1867
50 S 1 3 10 61 242 539 989 1434 1740 1856 1867 1867 1867
55 M 0 0 1 16 84 160 296 290 168 40 1 0 1058
55 S 0 0 1 17 101 261 557 848 1016 1056 1058 1058 1058
60 M 0 0 0 4 31 68 157 149 68 9 0 0 485
60 S 0 0 0 4 35 103 259 408 476 485 485 485 485
Corn Growing Degree Days
50 M 8 21 54 138 265 334 452 446 341 184 40 8 2291
50 S 8 29 82 220 485 820 1272 1718 2060 2243 2283 2291 2291
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