MATLOCK 8 S, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(455086) MATLOCK 8 S
From Year=1985 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 55 56 99 183 368 509 680 733 595 322 52 35 3685
40 S 55 111 210 392 760 1269 1949 2682 3277 3599 3651 3685 3685
45 M 11 6 20 71 213 359 525 578 445 173 7 5 2412
45 S 11 17 36 107 320 679 1204 1782 2227 2400 2407 2412 2412
50 M 0 0 1 20 84 210 370 423 295 63 0 0 1466
50 S 0 0 1 21 105 315 685 1108 1403 1466 1466 1466 1466
55 M 0 0 0 5 21 80 215 268 153 7 0 0 749
55 S 0 0 0 5 26 106 321 589 742 749 749 749 749
60 M 0 0 0 0 5 9 75 128 55 0 0 0 271
60 S 0 0 0 0 5 14 88 216 271 271 271 271 271
Corn Growing Degree Days
50 M 5 11 25 90 200 272 398 451 375 147 21 6 1999
50 S 5 17 41 131 330 602 1000 1451 1826 1973 1994 1999 1999
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