HOOD RIVER EXP STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(354003) HOOD RIVER EXP STN
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 23 42 139 294 501 654 846 826 604 348 100 30 4408
40 S 23 65 205 499 999 1653 2499 3325 3929 4278 4378 4408 4408
45 M 4 9 49 160 347 504 691 671 455 204 32 7 3133
45 S 4 13 62 222 569 1073 1764 2435 2890 3094 3126 3133 3133
50 M 0 1 11 67 205 355 536 516 309 91 6 1 2098
50 S 0 1 13 80 284 639 1175 1691 2000 2091 2097 2098 2098
55 M 0 0 1 21 98 213 381 362 175 28 1 0 1280
55 S 0 0 1 23 121 334 715 1077 1252 1280 1280 1280 1280
60 M 0 0 0 5 37 103 233 214 74 5 0 0 672
60 S 0 0 0 5 42 145 378 592 667 672 672 672 672
Corn Growing Degree Days
50 M 6 18 77 170 290 382 523 512 373 209 38 7 2603
50 S 6 23 100 270 560 942 1464 1977 2350 2558 2596 2603 2603
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