ALTON, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(420086) ALTON
From Year=1915 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 2 6 34 140 347 584 811 757 530 260 48 5 3525
40 S 2 9 42 182 529 1113 1924 2681 3211 3471 3520 3525 3525
45 M 0 1 7 59 212 435 656 602 382 139 11 0 2503
45 S 0 1 8 67 279 713 1369 1971 2353 2492 2503 2503 2503
50 M 0 0 1 16 102 291 501 447 238 52 1 0 1648
50 S 0 0 1 17 118 409 910 1357 1595 1647 1648 1648 1648
55 M 0 0 0 2 32 162 346 293 114 11 0 0 961
55 S 0 0 0 2 34 196 543 836 950 961 961 961 961
60 M 0 0 0 0 6 66 196 148 33 1 0 0 450
60 S 0 0 0 0 6 72 268 416 449 450 450 450 450
Corn Growing Degree Days
50 M 8 13 45 135 268 403 519 479 356 206 62 14 2510
50 S 8 21 66 201 470 873 1393 1871 2227 2433 2496 2510 2510
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