EUGENE MAHLON SWEET AP, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(352709) EUGENE WSO AIRPORT
From Year=1939 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 89 118 200 302 477 624 832 825 663 407 180 97 4812
40 S 89 207 406 708 1184 1809 2640 3466 4129 4535 4715 4812 4812
45 M 30 39 80 161 322 474 677 670 513 257 79 33 3334
45 S 30 69 149 310 631 1106 1782 2453 2965 3222 3301 3334 3334
50 M 6 8 20 61 178 324 522 515 363 127 23 7 2153
50 S 6 14 34 95 273 597 1119 1635 1997 2124 2147 2153 2153
55 M 1 1 3 15 75 181 367 360 218 43 3 0 1267
55 S 1 1 4 19 94 275 642 1003 1221 1263 1267 1267 1267
60 M 0 0 0 2 22 74 216 208 98 9 0 0 630
60 S 0 0 0 2 24 99 314 523 621 630 630 630 630
Corn Growing Degree Days
50 M 23 44 96 163 272 366 512 511 408 226 64 24 2708
50 S 23 67 163 326 597 963 1475 1987 2394 2621 2684 2708 2708
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