Roslyn, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° -36° (1972) 64° (1981) 0.64" 11.6"
February 27° -35° (1962) 64° (1958) 0.78" 8.1"
March 21° 38° -23° (1962) 79° (1963) 1.4" 4.8"
April 34° 55° -6° (1975) 96° (1980) 2.2" 4"
May 46° 67° 17° (2005) 96° (1959) 3.12" 0.6"
June 56° 76° 33° (1990) 105° (1988) 3.8" 0"
July 62° 82° 39° (1975) 107° (1987) 3.72" 0"
August 59° 80° 37° (1965) 104° (1965) 3.05" 0"
September 49° 70° 17° (1974) 98° (1983) 2.83" 0"
October 36° 56° 5° (1991) 91° (1963) 2.07" 0.8"
November 22° 38° -20° (1985) 76° (1965) 0.78" 6.5"
December 24° -34° (1967) 57° (2006) 0.76" 6.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 62° 82° 45° (1973) 100° (1955) 0.1" 0"
Aug 2 62° 82° 41° (1971) 101° (1958) 0.1" 0"
Aug 3 61° 82° 38° (1971) 97° (1959) 0.09" 0"
Aug 4 61° 82° 42° (1974) 104° (1959) 0.1" 0"
Aug 5 61° 81° 42° (1974) 98° (1968) 0.1" 0"
Aug 6 61° 81° 43° (1976) 99° (1983) 0.11" 0"
Aug 7 61° 81° 50° (1953) 98° (1968) 0.1" 0"
Aug 8 61° 81° 49° (1964) 100° (1958) 0.11" 0"
Aug 9 61° 81° 43° (1966) 99° (1958) 0.1" 0"
Aug 10 61° 81° 42° (1982) 96° (1971) 0.1" 0"
Aug 11 61° 81° 40° (1977) 101° (1959) 0.09" 0"
Aug 12 61° 81° 47° (1992) 98° (1984) 0.1" 0"
Aug 13 60° 80° 40° (1964) 104° (1965) 0.1" 0"
Aug 14 60° 80° 39° (1979) 99° (1965) 0.09" 0"
Aug 15 60° 80° 44° (1979) 102° (1988) 0.1" 0"
Aug 16 60° 80° 49° (1962) 100° (1988) 0.09" 0"
Aug 17 60° 80° 42° (1977) 100° (1976) 0.09" 0"
Aug 18 59° 79° 44° (1975) 102° (1976) 0.09" 0"
Aug 19 59° 79° 41° (1985) 102° (1976) 0.1" 0"
Aug 20 59° 79° 43° (1970) 100° (1976) 0.09" 0"
Aug 21 59° 79° 44° (2004) 99° (1976) 0.1" 0"
Aug 22 59° 79° 40° (1974) 97° (1971) 0.1" 0"
Aug 23 58° 78° 41° (1987) 98° (1976) 0.1" 0"
Aug 24 58° 78° 43° (1958) 97° (2003) 0.1" 0"
Aug 25 58° 78° 40° (1964) 95° (1974) 0.1" 0"
Aug 26 57° 78° 42° (1975) 97° (1991) 0.1" 0"
Aug 27 57° 77° 38° (1982) 98° (1973) 0.1" 0"
Aug 28 57° 77° 37° (1965) 100° (1984) 0.1" 0"
Aug 29 57° 77° 39° (1988) 98° (1983) 0.1" 0"
Aug 30 56° 76° 45° (1988) 92° (1961) 0.1" 0"
Aug 31 56° 76° 38° (1987) 92° (1953) 0.1" 0"
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