ALTAMONT, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(420074) ALTAMONT
From Year=1953 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 0 3 33 148 384 622 865 806 522 221 18 1 3623
40 S 0 3 36 184 568 1190 2055 2861 3383 3604 3622 3623 3623
45 M 0 0 9 68 246 473 710 651 377 114 3 0 2650
45 S 0 0 9 76 322 796 1505 2156 2533 2647 2650 2650 2650
50 M 0 0 1 22 133 330 555 496 240 42 0 0 1819
50 S 0 0 1 23 156 486 1041 1536 1777 1819 1819 1819 1819
55 M 0 0 0 4 52 201 400 342 123 8 0 0 1132
55 S 0 0 0 5 57 258 658 1001 1124 1132 1132 1132 1132
60 M 0 0 0 0 12 96 249 195 43 0 0 0 596
60 S 0 0 0 0 12 109 357 553 596 596 596 596 596
Corn Growing Degree Days
50 M 0 4 39 129 266 400 554 513 344 172 22 1 2446
50 S 0 5 44 174 440 840 1394 1906 2250 2422 2444 2446 2446
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