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
Apr 1 25° 50° 10° (1975) 81° (1997) 0.06" NA
Apr 2 26° 51° 3° (1975) 75° (1976) 0.06" NA
Apr 3 26° 51° 9° (1975) 77° (1991) 0.06" NA
Apr 4 26° 52° 11° (2002) 80° (1988) 0.06" NA
Apr 5 27° 52° 12° (1979) 79° (2005) 0.06" NA
Apr 6 27° 53° 8° (2007) 82° (1991) 0.06" NA
Apr 7 27° 53° 6° (1997) 80° (1988) 0.06" NA
Apr 8 28° 54° -2° (1997) 85° (1988) 0.06" NA
Apr 9 28° 54° 1° (1997) 89° (1977) 0.06" NA
Apr 10 29° 55° 14° (1989) 80° (1985) 0.06" NA
Apr 11 29° 55° 7° (1997) 85° (1996) 0.06" NA
Apr 12 29° 56° 7° (1997) 82° (1998) 0.07" NA
Apr 13 30° 56° 8° (1997) 76° (1988) 0.07" NA
Apr 14 30° 57° 11° (1982) 90° (1985) 0.07" NA
Apr 15 31° 57° 9° (1986) 82° (1985) 0.07" NA
Apr 16 31° 58° 12° (1985) 84° (1981) 0.07" NA
Apr 17 31° 58° 16° (2001) 84° (1985) 0.07" NA
Apr 18 32° 58° 19° (1990) 89° (2005) 0.07" NA
Apr 19 32° 59° 18° (1984) 91° (1987) 0.07" NA
Apr 20 32° 59° 20° (1982) 92° (1980) 0.07" NA
Apr 21 33° 60° 23° (1984) 93° (1980) 0.07" NA
Apr 22 33° 60° 19° (1985) 88° (1989) 0.07" NA
Apr 23 34° 61° 22° (1988) 93° (1989) 0.07" NA
Apr 24 34° 61° 26° (2001) 87° (1981) 0.07" NA
Apr 25 35° 61° 20° (2002) 83° (1981) 0.07" NA
Apr 26 35° 62° 23° (1994) 83° (1981) 0.07" NA
Apr 27 35° 62° 18° (1985) 80° (1987) 0.08" NA
Apr 28 36° 62° 20° (1994) 86° (1985) 0.08" NA
Apr 29 36° 63° 17° (2005) 90° (1987) 0.08" NA
Apr 30 37° 63° 20° (2005) 85° (1977) 0.08" NA
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