Rockham, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° -41° (1912) 66° (1987) 0.49" NA
February 30° -39° (1905) 71° (1958) 0.57" NA
March 20° 41° -28° (1962) 86° (1946) 1.49" NA
April 33° 58° -7° (1975) 98° (1980) 2.01" NA
May 45° 70° 14° (1981) 109° (1934) 3" NA
June 54° 79° 29° (1901) 111° (1988) 2.85" NA
July 59° 86° 35° (1971) 114° (2006) 2.58" NA
August 57° 85° 33° (1935) 113° (1965) 2.68" NA
September 47° 75° 15° (1951) 106° (1983) 1.73" NA
October 34° 61° -8° (1919) 96° (1963) 1.66" NA
November 19° 40° -25° (1896) 82° (1990) 0.84" NA
December 27° -35° (1990) 68° (1939) 0.41" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 12° 32° -17° (1896) 61° (1969) 0.02" NA
Dec 2 12° 31° -19° (1896) 66° (1998) 0.02" NA
Dec 3 11° 31° -15° (1905) 65° (1941) 0.02" NA
Dec 4 11° 31° -12° (1927) 62° (1941) 0.02" NA
Dec 5 11° 30° -15° (1984) 57° (1939) 0.02" NA
Dec 6 10° 30° -26° (1972) 68° (1939) 0.02" NA
Dec 7 10° 29° -22° (1972) 60° (1918) 0.02" NA
Dec 8 29° -25° (1927) 56° (1939) 0.02" NA
Dec 9 29° -22° (1955) 62° (1939) 0.02" NA
Dec 10 28° -24° (1917) 62° (1979) 0.01" NA
Dec 11 28° -17° (1970) 61° (1939) 0.01" NA
Dec 12 28° -24° (1932) 59° (1939) 0.01" NA
Dec 13 27° -30° (1917) 57° (1921) 0.01" NA
Dec 14 27° -24° (1917) 52° (1912) 0.01" NA
Dec 15 27° -24° (1951) 59° (1939) 0.01" NA
Dec 16 27° -29° (1951) 61° (1962) 0.01" NA
Dec 17 26° -25° (1951) 59° (1939) 0.01" NA
Dec 18 26° -30° (1951) 59° (1979) 0.01" NA
Dec 19 26° -26° (1916) 56° (1979) 0.01" NA
Dec 20 26° -30° (1916) 57° (1900) 0.01" NA
Dec 21 25° -30° (1989) 59° (1900) 0.01" NA
Dec 22 25° -27° (1989) 51° (1899) 0.01" NA
Dec 23 25° -31° (1983) 55° (1899) 0.01" NA
Dec 24 25° -25° (1983) 51° (1907) 0.01" NA
Dec 25 24° -20° (1902) 50° (1928) 0.01" NA
Dec 26 24° -28° (1990) 56° (1907) 0.01" NA
Dec 27 24° -27° (1924) 56° (1928) 0.01" NA
Dec 28 24° -23° (1924) 52° (1980) 0.01" NA
Dec 29 24° -34° (1917) 57° (1965) 0.01" NA
Dec 30 23° -35° (1990) 57° (1999) 0.01" NA
Dec 31 23° -30° (1990) 53° (2004) 0.02" NA
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