KLAMATH FALLS AGR STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(354511) KLAMATH FALLS AGR STN
From Year=1949 To Year=2004
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 7 16 55 160 361 558 806 767 536 260 46 9 3580
40 S 7 23 78 237 599 1157 1962 2729 3265 3525 3571 3580 3580
45 M 1 2 15 76 233 411 651 612 390 144 11 1 2546
45 S 1 3 18 94 327 738 1389 2000 2390 2534 2545 2546 2546
50 M 0 0 2 27 132 274 497 458 255 64 2 0 1711
50 S 0 0 2 30 162 436 932 1390 1645 1709 1711 1711 1711
55 M 0 0 0 6 63 158 347 307 143 22 0 0 1045
55 S 0 0 0 6 69 227 574 881 1023 1045 1045 1045 1045
60 M 0 0 0 1 22 75 208 169 61 5 0 0 541
60 S 0 0 0 1 23 98 306 475 536 541 541 541 541
Corn Growing Degree Days
50 M 3 10 54 129 250 363 518 498 374 222 43 3 2469
50 S 3 14 68 197 447 811 1329 1827 2201 2423 2466 2469 2469
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