OLYMPIA PRIEST PT PA, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(456109) OLYMPIA PRIEST PT PARK
From Year=1895 To Year=1955
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 56 73 149 289 472 599 751 744 567 371 159 76 4307
40 S 56 129 279 567 1040 1639 2389 3133 3700 4071 4231 4307 4307
45 M 13 17 50 151 318 449 596 589 417 221 59 19 2898
45 S 13 30 80 231 549 998 1594 2183 2599 2821 2879 2898 2898
50 M 2 2 10 58 173 299 441 434 268 96 11 2 1796
50 S 2 4 14 72 245 545 985 1419 1687 1783 1794 1796 1796
55 M 0 0 1 15 70 158 286 279 132 25 1 0 967
55 S 0 0 1 16 86 244 530 809 941 966 967 967 967
60 M 0 0 0 2 20 58 143 135 41 3 0 0 402
60 S 0 0 0 2 22 80 223 358 399 402 402 402 402
Corn Growing Degree Days
50 M 10 22 74 169 277 350 455 453 330 181 48 13 2383
50 S 10 32 106 275 552 902 1358 1811 2141 2323 2370 2383 2383
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