Opal, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -32° (1985) 69° (2005) 0.57" NA
February 12° 34° -36° (1994) 72° (2005) 0.65" NA
March 20° 43° -26° (1998) 83° (2007) 1.47" NA
April 31° 57° -2° (1997) 93° (1989) 2.03" NA
May 43° 68° 18° (2005) 101° (2006) 2.75" NA
June 52° 79° 30° (1979) 110° (2002) 2.9" NA
July 58° 87° 39° (1983) 114° (1977) 2.24" NA
August 55° 86° 35° (1992) 110° (1988) 1.36" NA
September 44° 75° 20° (1995) 107° (2001) 0.96" NA
October 31° 61° -10° (1991) 95° (1997) 1.35" NA
November 19° 42° -24° (1985) 82° (1999) 0.75" NA
December 31° -36° (1990) 69° (1998) 0.78" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 58° 89° 48° (1995) 103° (2007) 0.06" NA
Aug 2 58° 89° 47° (2002) 102° (1987) 0.06" NA
Aug 3 58° 89° 39° (1978) 103° (1983) 0.05" NA
Aug 4 58° 88° 43° (1978) 101° (2001) 0.05" NA
Aug 5 58° 88° 46° (1980) 105° (2006) 0.05" NA
Aug 6 58° 88° 51° (1993) 102° (2007) 0.05" NA
Aug 7 58° 88° 43° (1989) 104° (1983) 0.05" NA
Aug 8 57° 88° 47° (1984) 108° (1975) 0.05" NA
Aug 9 57° 88° 48° (1985) 105° (1983) 0.05" NA
Aug 10 57° 88° 41° (1985) 104° (2006) 0.05" NA
Aug 11 57° 88° 39° (2004) 106° (2007) 0.05" NA
Aug 12 57° 88° 46° (2004) 104° (1978) 0.05" NA
Aug 13 56° 88° 44° (2002) 102° (1984) 0.05" NA
Aug 14 56° 87° 43° (1985) 106° (2007) 0.05" NA
Aug 15 56° 87° 48° (2004) 98° (1983) 0.04" NA
Aug 16 56° 87° 46° (1977) 110° (1988) 0.04" NA
Aug 17 55° 87° 42° (1975) 100° (1976) 0.04" NA
Aug 18 55° 87° 40° (1985) 101° (1976) 0.04" NA
Aug 19 55° 86° 36° (2004) 96° (1994) 0.04" NA
Aug 20 55° 86° 41° (2004) 101° (1976) 0.04" NA
Aug 21 54° 86° 45° (2000) 101° (1988) 0.04" NA
Aug 22 54° 85° 48° (1977) 100° (1995) 0.04" NA
Aug 23 54° 85° 42° (1996) 101° (2006) 0.04" NA
Aug 24 53° 85° 42° (1985) 104° (2006) 0.04" NA
Aug 25 53° 84° 37° (1992) 103° (2000) 0.04" NA
Aug 26 52° 84° 39° (1992) 101° (1991) 0.04" NA
Aug 27 52° 84° 41° (1992) 100° (1991) 0.04" NA
Aug 28 52° 83° 38° (1988) 102° (1991) 0.03" NA
Aug 29 51° 83° 40° (1988) 97° (1991) 0.03" NA
Aug 30 51° 83° 35° (1992) 105° (1979) 0.03" NA
Aug 31 50° 82° 37° (1992) 100° (1975) 0.03" NA
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