CUSHMAN DAM, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(451934) CUSHMAN DAM
From Year=1914 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 36 59 116 256 477 595 762 756 596 384 134 52 4222
40 S 36 95 211 467 944 1539 2301 3057 3652 4036 4170 4222 4222
45 M 7 13 37 131 324 445 607 601 446 236 47 10 2903
45 S 7 20 57 188 512 957 1564 2165 2611 2846 2893 2903 2903
50 M 1 2 8 51 186 296 452 446 298 114 9 1 1862
50 S 1 2 11 62 248 543 995 1441 1739 1852 1862 1862 1862
55 M 0 0 1 15 87 159 297 292 162 38 1 0 1054
55 S 0 0 1 17 104 264 561 853 1015 1053 1054 1054 1054
60 M 0 0 0 3 33 68 157 150 65 8 0 0 485
60 S 0 0 0 3 36 104 262 412 477 485 485 485 485
Corn Growing Degree Days
50 M 7 19 55 137 269 334 454 449 337 182 39 7 2288
50 S 7 26 81 218 487 820 1274 1724 2060 2242 2281 2288 2288
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