CRYSTAL FALLS 6 NE, MICHIGAN

Period of Record General Climate Summary - Growing Degree Days

Station:(201922) CRYSTAL FALLS WAY DAM
From Year=1948 To Year=1989
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 0 6 96 367 594 776 691 409 169 16 1 3125
40 S 0 0 7 103 470 1064 1839 2530 2939 3108 3124 3125 3125
45 M 0 0 1 49 243 446 621 536 272 92 4 0 2264
45 S 0 0 2 51 294 740 1360 1896 2168 2260 2264 2264 2264
50 M 0 0 0 22 147 305 466 383 160 41 0 0 1525
50 S 0 0 0 23 169 474 940 1323 1483 1524 1525 1525 1525
55 M 0 0 0 9 79 183 316 242 79 15 0 0 922
55 S 0 0 0 9 88 271 587 828 907 922 922 922 922
60 M 0 0 0 3 35 92 183 127 31 4 0 0 475
60 S 0 0 0 3 38 130 313 440 471 475 475 475 475
Corn Growing Degree Days
50 M 0 1 8 81 254 374 496 435 251 110 12 0 2024
50 S 0 1 9 90 344 719 1215 1650 1901 2011 2023 2024 2024
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