MIKKALO LARSON RANCH, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355545) MIKKALO LARSON RANCH
From Year=1948 To Year=1994
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 31 64 139 285 516 731 977 949 690 393 98 33 4904
40 S 31 95 234 519 1034 1765 2742 3691 4380 4773 4871 4904 4904
45 M 8 18 50 154 362 581 822 794 540 250 33 7 3618
45 S 8 25 76 230 592 1172 1994 2788 3328 3578 3611 3618 3618
50 M 1 3 12 67 221 431 667 639 391 134 7 1 2573
50 S 1 4 16 82 303 735 1401 2040 2431 2565 2572 2573 2573
55 M 0 0 2 23 114 288 512 484 250 56 1 0 1730
55 S 0 0 2 25 139 427 939 1423 1673 1729 1730 1730 1730
60 M 0 0 0 6 50 165 360 332 134 18 0 0 1064
60 S 0 0 0 6 55 220 580 912 1046 1064 1064 1064 1064
Corn Growing Degree Days
50 M 12 28 70 165 309 449 619 601 425 226 42 12 2956
50 S 12 40 110 274 583 1032 1651 2252 2677 2902 2944 2956 2956
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