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
Jul 1 56° 84° 42° (1995) 99° (2006) 0.09" NA
Jul 2 56° 84° 44° (1995) 101° (2007) 0.09" NA
Jul 3 56° 84° 42° (1992) 107° (1990) 0.09" NA
Jul 4 57° 85° 39° (1983) 100° (1977) 0.08" NA
Jul 5 57° 85° 50° (1985) 105° (1989) 0.08" NA
Jul 6 57° 85° 45° (1986) 105° (1981) 0.08" NA
Jul 7 57° 85° 49° (1982) 110° (1981) 0.08" NA
Jul 8 57° 86° 46° (1996) 112° (2007) 0.08" NA
Jul 9 57° 86° 44° (1996) 109° (1989) 0.08" NA
Jul 10 57° 86° 48° (1999) 105° (1980) 0.08" NA
Jul 11 58° 86° 42° (1984) 105° (1985) 0.08" NA
Jul 12 58° 86° 42° (1975) 103° (2006) 0.08" NA
Jul 13 58° 87° 44° (1987) 104° (2006) 0.08" NA
Jul 14 58° 87° 44° (1993) 103° (1983) 0.07" NA
Jul 15 58° 87° 45° (1985) 105° (2002) 0.07" NA
Jul 16 58° 87° 45° (1976) 113° (2006) 0.07" NA
Jul 17 58° 87° 45° (1983) 109° (2006) 0.07" NA
Jul 18 58° 88° 48° (1975) 114° (1977) 0.07" NA
Jul 19 58° 88° 48° (1993) 108° (2006) 0.07" NA
Jul 20 58° 88° 46° (1988) 105° (1983) 0.07" NA
Jul 21 58° 88° 49° (1988) 100° (1982) 0.07" NA
Jul 22 58° 88° 48° (1990) 108° (2007) 0.07" NA
Jul 23 58° 88° 48° (1975) 108° (2007) 0.06" NA
Jul 24 58° 88° 48° (1988) 108° (2007) 0.06" NA
Jul 25 59° 88° 49° (1985) 105° (2007) 0.06" NA
Jul 26 58° 88° 45° (1994) 105° (1985) 0.06" NA
Jul 27 58° 88° 46° (1994) 105° (1987) 0.06" NA
Jul 28 58° 88° 49° (1976) 104° (1987) 0.06" NA
Jul 29 58° 88° 45° (2004) 110° (2006) 0.06" NA
Jul 30 58° 89° 46° (2004) 106° (1975) 0.06" NA
Jul 31 58° 89° 50° (1977) 112° (2006) 0.06" NA
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