RIVERTON, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(216972) RIVERTON
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 0 141 448 780 890 866 545 -99 15 0 -99
40 S 0 0 0 141 589 1370 2260 3126 3670 -99 -99 -99 -99
45 M 0 0 0 76 300 630 735 711 395 -99 2 0 -99
45 S 0 0 0 76 376 1006 1741 2452 2847 -99 -99 -99 -99
50 M 0 0 0 33 178 480 580 556 257 -99 0 0 -99
50 S 0 0 0 33 211 691 1272 1828 2085 -99 -99 -99 -99
55 M 0 0 0 12 84 333 426 402 155 -99 0 0 -99
55 S 0 0 0 12 96 428 854 1256 1411 -99 -99 -99 -99
60 M 0 0 0 1 30 197 276 269 80 -99 0 0 -99
60 S 0 0 0 1 31 228 503 772 851 -99 -99 -99 -99
Corn Growing Degree Days
50 M 0 0 0 89 244 484 577 552 308 -99 5 0 -99
50 S 0 0 0 90 334 818 1395 1946 2254 -99 -99 -99 -99
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