BRIAN HEAD, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(420900) BRIAN HEAD
From Year=1991 To Year=2009
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 0 0 1 7 87 311 496 477 221 37 1 0 1638
40 S 0 0 1 8 96 406 902 1379 1600 1637 1638 1638 1638
45 M 0 0 0 0 26 183 341 323 98 6 0 0 977
45 S 0 0 0 0 26 209 551 873 971 977 977 977 977
50 M 0 0 0 0 6 80 191 173 25 0 0 0 476
50 S 0 0 0 0 6 86 278 451 476 476 476 476 476
55 M 0 0 0 0 2 16 65 51 1 0 0 0 134
55 S 0 0 0 0 2 17 82 133 134 134 134 134 134
60 M 0 0 0 0 0 1 5 5 0 0 0 0 12
60 S 0 0 0 0 0 2 7 12 12 12 12 12 12
Corn Growing Degree Days
50 M 0 0 3 16 88 226 317 291 158 43 2 0 1143
50 S 0 0 3 19 107 332 649 940 1098 1141 1143 1143 1143
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