LINCOLN RANGER STN, MONTANA

Period of Record General Climate Summary - Growing Degree Days

Station:(245040) LINCOLN RANGER STN
From Year=1948 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 1 3 16 87 272 464 673 637 351 122 10 1 2636
40 S 1 4 20 107 380 844 1516 2153 2504 2626 2636 2636 2636
45 M 0 0 3 33 150 317 518 482 219 49 2 0 1772
45 S 0 0 3 36 186 503 1021 1503 1722 1771 1772 1772 1772
50 M 0 0 0 9 66 184 364 330 112 14 0 0 1079
50 S 0 0 0 9 75 259 623 953 1065 1079 1079 1079 1079
55 M 0 0 0 1 21 85 219 189 44 3 0 0 561
55 S 0 0 0 1 22 107 326 515 558 561 561 561 561
60 M 0 0 0 0 4 28 100 79 11 0 0 0 222
60 S 0 0 0 0 4 32 132 210 222 222 222 222 222
Corn Growing Degree Days
50 M 0 2 22 94 217 321 470 463 297 125 10 0 2023
50 S 0 3 24 118 335 657 1127 1590 1887 2013 2023 2023 2023
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