HART MOUNTAIN REFUGE, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353692) HART MOUNTAIN REFUGE
From Year=1939 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 8 11 32 100 255 436 703 678 453 221 45 10 2952
40 S 8 19 51 151 406 842 1546 2223 2676 2897 2942 2952 2952
45 M 1 2 8 42 143 294 549 523 315 117 12 1 2006
45 S 1 2 10 53 195 489 1038 1561 1875 1992 2004 2006 2006
50 M 0 0 1 12 66 172 395 371 192 47 1 0 1258
50 S 0 0 1 13 78 250 646 1017 1210 1257 1258 1258 1258
55 M 0 0 0 2 23 84 250 230 95 12 0 0 696
55 S 0 0 0 2 25 109 359 589 684 696 696 696 696
60 M 0 0 0 0 5 30 126 111 32 2 0 0 306
60 S 0 0 0 0 5 35 161 272 305 306 306 306 306
Corn Growing Degree Days
50 M 5 11 30 90 198 308 484 470 339 185 39 9 2167
50 S 5 17 47 137 335 643 1126 1596 1935 2120 2158 2167 2167
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