ALTAMONT, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(420074) ALTAMONT
From Year=1953 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 0 2 35 148 382 626 872 810 524 218 19 1 3638
40 S 0 2 37 185 568 1194 2066 2876 3400 3618 3637 3638 3638
45 M 0 0 9 68 245 477 717 655 379 112 3 0 2666
45 S 0 0 10 77 323 800 1517 2172 2551 2662 2666 2666 2666
50 M 0 0 1 22 133 334 562 500 243 41 0 0 1837
50 S 0 0 1 24 157 491 1053 1553 1795 1837 1837 1837 1837
55 M 0 0 0 5 53 205 408 346 125 8 0 0 1150
55 S 0 0 0 5 58 263 671 1017 1142 1150 1150 1150 1150
60 M 0 0 0 1 13 100 256 199 43 0 0 0 612
60 S 0 0 0 1 13 113 369 568 611 612 612 612 612
Corn Growing Degree Days
50 M 0 4 41 129 264 403 559 516 345 169 23 1 2454
50 S 0 4 45 174 438 841 1399 1915 2260 2429 2452 2454 2454
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