ASTOR EXPERIMENT STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(350318) ASTOR EXPERIMENT STN
From Year=1937 To Year=1973
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 93 125 159 250 399 509 627 641 569 415 207 120 4114
40 S 93 218 377 627 1026 1534 2162 2803 3372 3787 3995 4114 4114
45 M 28 40 52 114 245 359 472 486 420 264 89 39 2607
45 S 28 67 120 233 479 837 1310 1796 2215 2479 2568 2607 2607
50 M 3 7 10 30 109 209 317 331 271 130 20 6 1443
50 S 3 10 19 50 158 367 685 1016 1287 1417 1437 1443 1443
55 M 0 1 1 5 29 80 164 178 131 41 1 0 631
55 S 0 1 2 7 36 116 280 458 589 630 631 631 631
60 M 0 0 0 1 5 17 47 51 36 6 0 0 163
60 S 0 0 0 1 6 23 70 121 157 163 163 163 163
Corn Growing Degree Days
50 M 23 47 72 121 202 256 342 358 320 213 81 29 2063
50 S 23 70 142 262 464 720 1062 1420 1740 1953 2034 2063 2063
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