MITCHELL 17 SW OCHOCO, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356243) MITCHELL 17 SW OCHOCO
From Year=1909 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 5 29 110 261 433 672 655 445 192 22 2 2827
40 S 1 6 35 145 406 839 1511 2166 2611 2803 2825 2827 2827
45 M 0 0 6 46 144 288 517 500 303 94 4 0 1903
45 S 0 1 6 52 197 485 1002 1502 1805 1899 1903 1903 1903
50 M 0 0 0 13 65 164 365 348 179 34 0 0 1170
50 S 0 0 0 14 79 243 608 956 1135 1169 1170 1170 1170
55 M 0 0 0 2 22 75 224 208 85 9 0 0 625
55 S 0 0 0 2 24 99 323 531 616 625 625 625 625
60 M 0 0 0 0 5 26 110 95 27 1 0 0 264
60 S 0 0 0 0 5 31 141 236 263 264 264 264 264
Corn Growing Degree Days
50 M 1 7 39 114 223 326 482 475 366 189 18 1 2239
50 S 1 8 47 161 384 710 1191 1666 2032 2221 2238 2239 2239
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