Roslyn, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° -36° (1972) 64° (1981) 0.75" NA
February 26° -35° (1962) 64° (1958) 0.57" NA
March 20° 38° -23° (1962) 79° (1963) 1.1" NA
April 33° 55° -6° (1975) 96° (1980) 1.84" NA
May 46° 68° 17° (2005) 96° (1959) 2.63" NA
June 56° 77° 33° (1990) 105° (1988) 3.48" NA
July 61° 82° 39° (1975) 107° (1987) 3.73" NA
August 59° 80° 37° (1965) 104° (1965) 3.06" NA
September 48° 69° 17° (1974) 98° (1983) 1.88" NA
October 36° 56° 5° (1991) 91° (1963) 1.69" NA
November 20° 37° -20° (1985) 76° (1965) 0.85" NA
December 23° -34° (1967) 57° (2006) 0.48" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 62° 83° 45° (1973) 100° (1955) 0.11" NA
Aug 2 62° 82° 41° (1971) 101° (1958) 0.11" NA
Aug 3 62° 82° 38° (1971) 97° (1959) 0.11" NA
Aug 4 62° 82° 42° (1974) 104° (1959) 0.11" NA
Aug 5 62° 82° 42° (1974) 98° (1968) 0.11" NA
Aug 6 61° 82° 43° (1976) 99° (1983) 0.11" NA
Aug 7 61° 82° 50° (1953) 98° (1968) 0.11" NA
Aug 8 61° 82° 49° (1964) 100° (1958) 0.11" NA
Aug 9 61° 82° 43° (1966) 99° (1958) 0.11" NA
Aug 10 61° 81° 42° (1982) 96° (1971) 0.11" NA
Aug 11 61° 81° 40° (1977) 101° (1959) 0.11" NA
Aug 12 61° 81° 47° (1992) 98° (1984) 0.1" NA
Aug 13 60° 81° 40° (1964) 104° (1965) 0.1" NA
Aug 14 60° 81° 39° (1979) 99° (1965) 0.1" NA
Aug 15 60° 80° 44° (1979) 102° (1988) 0.1" NA
Aug 16 60° 80° 49° (1962) 100° (1988) 0.1" NA
Aug 17 60° 80° 42° (1977) 100° (1976) 0.1" NA
Aug 18 59° 80° 44° (1975) 102° (1976) 0.1" NA
Aug 19 59° 79° 41° (1985) 102° (1976) 0.1" NA
Aug 20 59° 79° 43° (1970) 100° (1976) 0.1" NA
Aug 21 58° 79° 44° (2004) 99° (1976) 0.09" NA
Aug 22 58° 78° 40° (1974) 97° (1971) 0.09" NA
Aug 23 58° 78° 41° (1987) 98° (1976) 0.09" NA
Aug 24 58° 78° 43° (1958) 97° (2003) 0.09" NA
Aug 25 57° 78° 40° (1964) 95° (1974) 0.09" NA
Aug 26 57° 77° 42° (1975) 97° (1991) 0.09" NA
Aug 27 56° 77° 38° (1982) 98° (1973) 0.09" NA
Aug 28 56° 77° 37° (1965) 100° (1984) 0.08" NA
Aug 29 56° 76° 39° (1988) 98° (1983) 0.08" NA
Aug 30 55° 76° 45° (1988) 92° (1961) 0.08" NA
Aug 31 55° 75° 38° (1987) 92° (1953) 0.08" NA
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