SLATE CREEK RANGER STN, IDAHO

Period of Record General Climate Summary - Growing Degree Days

Station:(108475) SLATE CREEK RANGER STN
From Year=1960 To Year=1971
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 66 100 158 330 588 793 1084 1106 744 393 152 55 5568
40 S 66 166 323 653 1241 2034 3118 4224 4968 5362 5513 5568 5568
45 M 21 31 67 191 433 643 929 951 594 250 67 14 4191
45 S 21 52 119 310 743 1386 2315 3266 3861 4111 4177 4191 4191
50 M 3 7 21 89 285 493 774 796 447 131 20 2 3068
50 S 3 10 31 120 404 897 1671 2468 2915 3045 3066 3068 3068
55 M 0 1 4 31 158 346 619 641 307 51 5 0 2164
55 S 0 1 5 36 195 540 1159 1801 2108 2159 2164 2164 2164
60 M 0 0 0 7 68 209 464 487 187 13 1 0 1436
60 S 0 0 0 8 75 285 749 1236 1423 1436 1436 1436 1436
Corn Growing Degree Days
50 M 20 54 97 217 372 481 637 642 466 246 73 17 3321
50 S 20 73 170 388 759 1240 1878 2520 2986 3232 3304 3321 3321
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