MC NARY DAM, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355389) MC NARY DAM
From Year=1948 To Year=1954
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 37 60 154 393 655 785 1073 1025 783 408 112 42 5528
40 S 37 96 250 643 1298 2083 3157 4182 4965 5373 5485 5528 5528
45 M 10 17 57 248 502 635 918 870 633 260 40 10 4201
45 S 10 27 84 332 834 1469 2387 3258 3891 4151 4191 4201 4201
50 M 1 3 13 129 349 485 763 715 484 136 9 1 3089
50 S 1 4 17 146 496 981 1744 2459 2944 3080 3088 3089 3089
55 M 0 0 2 53 213 337 608 560 341 55 1 0 2170
55 S 0 0 2 55 268 605 1213 1774 2114 2169 2170 2170 2170
60 M 0 0 0 17 110 205 454 406 209 12 0 0 1411
60 S 0 0 0 17 126 331 784 1190 1399 1411 1411 1411 1411
Corn Growing Degree Days
50 M 11 30 95 255 398 481 671 649 491 256 55 15 3408
50 S 11 41 137 391 790 1271 1942 2591 3083 3338 3394 3408 3408
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