SENECA, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357675) SENECA
From Year=1949 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 1 3 15 78 226 400 603 557 309 103 13 2 2310
40 S 1 4 19 97 323 724 1326 1884 2193 2296 2309 2310 2310
45 M 0 0 2 28 119 260 449 404 185 37 1 0 1485
45 S 0 0 2 30 149 409 858 1262 1447 1484 1485 1485 1485
50 M 0 0 0 6 51 143 300 257 89 8 0 0 856
50 S 0 0 0 6 57 201 501 758 847 856 856 856 856
55 M 0 0 0 1 17 61 168 131 31 1 0 0 409
55 S 0 0 0 1 17 79 247 377 408 409 409 409 409
60 M 0 0 0 0 3 18 70 46 7 0 0 0 144
60 S 0 0 0 0 3 22 91 137 144 144 144 144 144
Corn Growing Degree Days
50 M 0 6 26 90 192 309 464 460 326 173 24 1 2071
50 S 0 6 32 122 313 623 1087 1547 1873 2046 2070 2071 2071
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