STARTUP 1 E, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(458034) STARTUP 1 E
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 76 107 162 281 465 591 734 737 579 360 160 78 4330
40 S 76 183 345 626 1091 1682 2416 3153 3732 4092 4252 4330 4330
45 M 22 37 60 146 311 441 579 582 429 214 67 20 2909
45 S 22 59 120 266 577 1019 1597 2180 2609 2822 2889 2909 2909
50 M 3 8 15 58 173 292 424 427 280 98 18 2 1799
50 S 3 11 26 84 257 549 972 1400 1680 1778 1797 1799 1799
55 M 0 1 3 18 77 155 270 273 143 30 3 0 974
55 S 0 1 4 22 99 254 524 797 940 970 974 974 974
60 M 0 0 0 3 28 62 133 132 49 6 0 0 412
60 S 0 0 0 4 31 93 226 357 406 412 412 412 412
Corn Growing Degree Days
50 M 19 42 78 148 254 329 440 447 336 186 55 16 2350
50 S 19 61 139 288 542 871 1311 1758 2094 2280 2335 2350 2350
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 Jul 28, 2006
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