HOWARD PRAIRIE DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(354060) HOWARD PRAIRIE DAM
From Year=1960 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 1 6 26 90 252 446 683 669 470 232 27 1 2903
40 S 1 7 33 122 374 820 1503 2173 2642 2875 2902 2903 2903
45 M 0 0 4 35 141 305 528 514 326 123 5 0 1983
45 S 0 0 5 40 181 486 1014 1528 1854 1978 1983 1983 1983
50 M 0 0 0 9 67 183 376 362 199 49 0 0 1245
50 S 0 0 0 9 76 259 635 997 1196 1245 1245 1245 1245
55 M 0 0 0 1 25 91 234 220 96 14 0 0 681
55 S 0 0 0 1 27 117 351 572 668 681 681 681 681
60 M 0 0 0 0 7 34 117 103 30 2 0 0 293
60 S 0 0 0 0 7 41 157 261 291 293 293 293 293
Corn Growing Degree Days
50 M 1 9 32 81 186 295 448 445 339 184 19 0 2040
50 S 1 10 42 123 309 604 1052 1497 1836 2020 2040 2040 2040
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