HEPPNER, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(353827) HEPPNER
From Year=1893 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 49 61 142 263 476 661 899 871 619 358 120 52 4570
40 S 49 110 252 515 991 1652 2551 3422 4041 4399 4519 4570 4570
45 M 16 20 57 141 324 511 744 716 470 219 48 17 3282
45 S 16 35 93 234 557 1068 1812 2528 2998 3216 3265 3282 3282
50 M 3 5 16 61 190 362 589 561 324 109 14 4 2238
50 S 3 8 24 85 275 637 1226 1787 2111 2220 2234 2238 2238
55 M 0 1 3 20 93 224 435 406 193 42 3 0 1419
55 S 0 1 4 23 116 340 775 1181 1374 1416 1419 1419 1419
60 M 0 0 0 5 37 116 286 259 93 10 0 0 806
60 S 0 0 0 5 42 158 444 703 796 806 806 806 806
Corn Growing Degree Days
50 M 21 31 86 165 292 405 562 545 386 223 63 23 2802
50 S 21 52 138 303 594 1000 1561 2106 2493 2716 2779 2802 2802
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