PINE MOUNTAIN OBSERVATO, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(356662) PINE MOUNTAIN OBSERVATO
From Year=1968 To Year=1981
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 5 4 16 32 183 348 650 601 406 177 15 6 2442
40 S 5 9 25 57 240 588 1238 1839 2245 2421 2436 2442 2442
45 M 0 0 4 12 98 227 497 450 273 98 2 2 1663
45 S 0 0 4 16 114 341 838 1288 1561 1659 1661 1663 1663
50 M 0 0 0 3 43 131 349 309 161 46 0 0 1042
50 S 0 0 0 3 46 177 525 834 995 1041 1041 1042 1042
55 M 0 0 0 0 15 63 218 187 74 17 0 0 574
55 S 0 0 0 0 15 78 296 483 557 574 574 574 574
60 M 0 0 0 0 3 25 113 94 22 4 0 0 261
60 S 0 0 0 0 3 28 140 235 257 261 261 261 261
Corn Growing Degree Days
50 M 2 3 11 28 137 229 427 381 263 114 7 3 1604
50 S 2 5 16 44 181 410 837 1218 1481 1594 1602 1604 1604
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