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
Jan 1 20° -30° (1974) 44° (1998) 0.02" NA
Jan 2 19° -22° (1968) 44° (1998) 0.02" NA
Jan 3 19° -22° (1968) 44° (1962) 0.02" NA
Jan 4 19° -30° (1968) 43° (1987) 0.02" NA
Jan 5 19° -26° (1960) 43° (1956) 0.02" NA
Jan 6 19° -24° (1968) 41° (1963) 0.02" NA
Jan 7 19° -25° (1966) 48° (1963) 0.02" NA
Jan 8 19° -34° (1976) 50° (1958) 0.02" NA
Jan 9 19° -34° (1977) 50° (1958) 0.02" NA
Jan 10 19° -31° (1977) 52° (1990) 0.02" NA
Jan 11 19° -29° (1977) 52° (1990) 0.02" NA
Jan 12 19° -30° (1977) 54° (1987) 0.03" NA
Jan 13 19° -26° (1965) 50° (1987) 0.03" NA
Jan 14 -1° 19° -28° (1972) 47° (1990) 0.03" NA
Jan 15 19° -36° (1972) 41° (1990) 0.03" NA
Jan 16 19° -32° (1977) 45° (1974) 0.03" NA
Jan 17 19° -29° (1954) 43° (1974) 0.03" NA
Jan 18 19° -31° (1994) 42° (1981) 0.03" NA
Jan 19 19° -30° (1963) 39° (1964) 0.03" NA
Jan 20 19° -27° (1970) 42° (1964) 0.03" NA
Jan 21 19° -33° (1954) 43° (1967) 0.03" NA
Jan 22 19° -22° (1966) 47° (1981) 0.03" NA
Jan 23 19° -26° (1963) 52° (1981) 0.03" NA
Jan 24 20° -30° (1961) 64° (1981) 0.03" NA
Jan 25 20° -26° (1972) 51° (1981) 0.02" NA
Jan 26 20° -23° (1972) 49° (1990) 0.02" NA
Jan 27 20° -24° (1963) 48° (1990) 0.02" NA
Jan 28 20° -26° (1965) 40° (1990) 0.02" NA
Jan 29 21° -30° (1966) 44° (1988) 0.02" NA
Jan 30 21° -27° (1996) 45° (1964) 0.02" NA
Jan 31 21° -26° (1996) 43° (1987) 0.02" NA
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