HERMISTON 2 S, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353847) HERMISTON 2 S
From Year=1906 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 33 62 194 385 632 823 1046 990 700 387 109 41 5402
40 S 33 94 289 674 1307 2130 3175 4165 4865 5252 5361 5402 5402
45 M 9 19 86 242 477 673 891 835 550 244 43 13 4081
45 S 9 28 114 356 833 1506 2397 3232 3782 4026 4068 4081 4081
50 M 2 4 26 124 325 523 736 680 402 126 12 3 2961
50 S 2 6 31 155 480 1003 1739 2419 2821 2946 2958 2961 2961
55 M 0 1 5 49 189 374 581 525 260 49 2 0 2034
55 S 0 1 5 54 244 618 1198 1723 1983 2032 2033 2034 2034
60 M 0 0 0 14 91 232 426 371 139 12 0 0 1287
60 S 0 0 0 14 105 338 764 1135 1274 1286 1286 1287 1287
Corn Growing Degree Days
50 M 16 38 137 255 399 512 649 620 455 265 61 20 3426
50 S 16 54 191 447 846 1358 2006 2626 3081 3346 3406 3426 3426
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