MADRAS, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(355139) MADRAS
From Year=1909 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 32 45 102 202 408 589 809 772 540 267 79 34 3878
40 S 32 77 179 381 789 1378 2187 2959 3499 3765 3844 3878 3878
45 M 9 13 36 102 264 440 654 617 392 145 28 9 2709
45 S 9 22 58 160 424 864 1518 2134 2526 2671 2700 2709 2709
50 M 1 3 9 41 146 296 499 462 254 61 7 2 1781
50 S 1 4 13 54 200 496 995 1458 1712 1773 1780 1781 1781
55 M 0 0 1 12 68 171 347 311 138 18 1 0 1068
55 S 0 0 2 14 81 253 599 910 1049 1067 1068 1068 1068
60 M 0 0 0 2 25 81 206 176 58 3 0 0 552
60 S 0 0 0 2 27 109 315 491 549 552 552 552 552
Corn Growing Degree Days
50 M 17 35 100 186 313 405 526 517 406 238 57 19 2818
50 S 17 52 152 338 651 1056 1582 2099 2505 2743 2800 2818 2818
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