BONNY DAM 2NE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(050834) BONNY LAKE
From Year=1949 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 18 37 117 292 584 882 1110 1045 729 398 105 25 5343
40 S 18 55 172 464 1048 1931 3040 4086 4815 5213 5318 5343 5343
45 M 4 12 57 181 435 732 955 890 582 268 45 6 4167
45 S 4 16 73 253 688 1421 2375 3266 3848 4116 4161 4167 4167
50 M 1 3 22 95 296 583 800 735 438 158 13 1 3144
50 S 1 3 25 119 416 999 1798 2534 2972 3130 3144 3144 3144
55 M 0 0 6 40 178 436 645 581 303 78 2 0 2268
55 S 0 0 6 46 224 660 1305 1885 2189 2267 2268 2268 2268
60 M 0 0 1 12 89 297 490 427 185 29 0 0 1531
60 S 0 0 1 13 102 399 889 1316 1502 1531 1531 1531 1531
Corn Growing Degree Days
50 M 36 54 119 218 363 550 705 662 457 291 111 45 3611
50 S 36 90 209 427 790 1340 2045 2707 3164 3456 3567 3611 3611
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