OTIS, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356366) OTIS
From Year=1948 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 109 137 188 254 391 497 613 639 562 397 199 112 4097
40 S 109 246 433 687 1078 1576 2189 2828 3390 3787 3986 4097 4097
45 M 36 47 69 118 237 347 458 484 412 245 86 37 2576
45 S 36 82 151 269 506 853 1312 1796 2208 2453 2539 2576 2576
50 M 5 8 13 35 104 198 303 329 263 111 21 7 1398
50 S 5 13 26 62 166 364 667 996 1259 1370 1392 1398 1398
55 M 0 1 1 7 32 72 151 175 123 30 2 0 593
55 S 0 1 1 9 40 113 263 438 561 590 592 593 593
60 M 0 0 0 1 8 16 39 49 32 4 0 0 148
60 S 0 0 0 1 9 25 64 112 144 148 148 148 148
Corn Growing Degree Days
50 M 18 39 71 111 186 245 332 354 308 181 56 19 1919
50 S 18 57 128 239 425 669 1001 1355 1663 1844 1899 1919 1919
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