TIDEWATER FISH HATCHERY, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358481) TIDEWATER FISH HATCHERY
From Year=1940 To Year=2002
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 132 184 245 326 473 582 722 743 663 495 248 145 4957
40 S 132 316 561 887 1360 1942 2663 3406 4069 4564 4813 4957 4957
45 M 47 77 113 182 319 432 567 588 513 341 122 54 3353
45 S 47 123 237 419 738 1169 1736 2323 2836 3177 3299 3353 3353
50 M 8 19 34 72 173 282 412 433 363 194 38 10 2039
50 S 8 28 62 134 307 589 1000 1433 1796 1990 2028 2039 2039
55 M 1 3 5 19 67 140 257 278 215 77 5 1 1066
55 S 1 4 9 27 94 234 491 769 984 1060 1065 1066 1066
60 M 0 0 0 2 18 44 110 128 88 17 0 0 408
60 S 0 0 0 3 21 65 175 303 391 408 408 408 408
Corn Growing Degree Days
50 M 37 75 117 168 253 316 423 441 389 261 92 36 2609
50 S 37 112 229 397 650 966 1389 1831 2220 2481 2573 2609 2609
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