BLACK ROCK, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(420730) BLACK ROCK
From Year=1951 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 12 31 116 267 526 767 1027 966 655 327 73 14 4782
40 S 12 43 159 426 952 1719 2746 3712 4367 4694 4768 4782 4782
45 M 2 7 45 150 376 617 872 811 506 196 26 3 3611
45 S 2 9 54 204 581 1197 2069 2880 3386 3582 3608 3611 3611
50 M 0 1 13 67 238 467 717 656 361 94 6 0 2621
50 S 0 1 14 81 318 786 1503 2159 2520 2614 2620 2621 2621
55 M 0 0 2 21 123 322 562 501 226 31 1 0 1789
55 S 0 0 2 23 147 468 1030 1532 1757 1789 1789 1789 1789
60 M 0 0 0 4 45 190 407 347 113 5 0 0 1112
60 S 0 0 0 4 49 239 647 994 1107 1112 1112 1112 1112
Corn Growing Degree Days
50 M 17 45 138 245 396 504 626 607 463 297 96 19 3456
50 S 17 63 201 446 842 1346 1972 2580 3043 3340 3437 3456 3456
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