BLACKBUTTE 1 N, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(350781) BLACKBUTTE 1 N
From Year=1900 To Year=1965
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 59 119 220 392 510 735 705 494 312 117 37 3731
40 S 32 90 209 429 821 1331 2066 2771 3265 3577 3694 3731 3731
45 M 6 21 35 94 240 361 580 550 344 166 30 8 2433
45 S 6 27 61 156 395 756 1336 1885 2229 2396 2425 2433 2433
50 M 2 6 3 26 116 218 425 395 196 59 2 1 1449
50 S 2 7 10 36 152 371 795 1190 1387 1446 1448 1449 1449
55 M 0 0 0 6 46 104 272 243 83 13 0 0 768
55 S 0 1 1 7 53 156 429 672 755 768 768 768 768
60 M 0 0 0 2 12 35 137 113 23 1 0 0 324
60 S 0 0 0 2 14 49 186 300 323 324 324 324 324
Corn Growing Degree Days
50 M 9 26 71 146 246 303 456 450 302 168 44 10 2230
50 S 9 36 106 252 498 801 1257 1707 2008 2176 2220 2230 2230
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