SEQUIM 2 E, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(457544) SEQUIM 2 E
From Year=1980 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 52 56 108 192 367 493 616 619 461 260 104 40 3368
40 S 52 108 216 408 776 1268 1884 2504 2964 3224 3328 3368 3368
45 M 9 10 27 74 216 343 461 464 311 121 31 7 2073
45 S 9 19 46 120 336 679 1140 1604 1914 2036 2066 2073 2073
50 M 1 1 3 15 90 194 306 309 166 34 4 1 1124
50 S 1 2 5 20 110 304 611 920 1086 1120 1124 1124 1124
55 M 0 0 0 1 23 72 157 158 55 5 0 0 471
55 S 0 0 0 2 24 96 253 411 466 471 471 471 471
60 M 0 0 0 0 3 17 46 44 8 0 0 0 118
60 S 0 0 0 0 3 20 66 110 118 118 118 118 118
Corn Growing Degree Days
50 M 13 18 45 90 174 242 332 341 247 126 35 8 1671
50 S 13 31 76 166 340 581 914 1255 1502 1628 1663 1671 1671
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