MOUNT ADAMS RANGER STN, WASHINGTON

Period of Record General Climate Summary - Growing Degree Days

Station:(455659) MOUNT ADAMS RANGER STN
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 5 9 47 165 393 575 784 762 515 241 42 5 3543
40 S 5 14 61 226 619 1194 1977 2740 3254 3496 3538 3543 3543
45 M 0 1 9 71 248 425 629 607 367 123 9 1 2489
45 S 0 1 10 81 330 754 1383 1990 2357 2480 2489 2489 2489
50 M 0 0 1 22 132 279 474 452 230 49 1 0 1640
50 S 0 0 1 23 155 434 908 1360 1591 1640 1640 1640 1640
55 M 0 0 0 5 57 154 322 301 119 14 0 0 971
55 S 0 0 0 5 62 215 537 838 957 971 971 971 971
60 M 0 0 0 1 17 68 185 168 46 2 0 0 488
60 S 0 0 0 1 18 86 272 439 485 488 488 488 488
Corn Growing Degree Days
50 M 2 7 41 125 263 362 497 488 351 170 14 1 2322
50 S 2 9 50 175 438 800 1298 1786 2137 2307 2321 2322 2322
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