Mystic, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 40° -26° (1996) 66° (2003) 0.32" 5.1"
February 14° 41° -38° (1996) 67° (1995) 0.58" 7"
March 22° 47° -25° (1998) 76° (1989) 1.08" 11.3"
April 29° 56° -9° (1997) 83° (1989) 2.29" 12.3"
May 39° 65° 12° (2005) 88° (2003) 3.84" 2.7"
June 48° 75° 26° (1998) 96° (2002) 3.14" 0.3"
July 53° 82° 30° (1976) 101° (2006) 3.07" 0"
August 51° 82° 28° (2004) 97° (2007) 2.29" 0"
September 41° 72° 12° (1972) 95° (1972) 1.71" 0.7"
October 31° 60° -9° (1991) 85° (1992) 1.57" 4.9"
November 21° 47° -13° (1993) 76° (1999) 0.65" 7.5"
December 12° 39° -39° (1990) 69° (1997) 0.41" 6.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 51° 79° 34° (1995) 96° (1990) 0.09" 0"
Jul 2 51° 79° 40° (1972) 96° (1990) 0.09" 0"
Jul 3 51° 80° 30° (1972) 95° (1990) 0.08" 0"
Jul 4 52° 80° 31° (1972) 97° (1989) 0.09" 0"
Jul 5 52° 80° 32° (1972) 95° (1989) 0.09" 0"
Jul 6 52° 80° 40° (1972) 93° (2007) 0.1" 0"
Jul 7 52° 81° 37° (1993) 98° (1989) 0.09" 0"
Jul 8 52° 81° 35° (1994) 99° (1989) 0.1" 0"
Jul 9 53° 81° 35° (1993) 98° (1989) 0.09" 0"
Jul 10 53° 81° 38° (1999) 91° (1994) 0.1" 0"
Jul 11 53° 81° 41° (1990) 92° (1995) 0.1" 0"
Jul 12 53° 82° 37° (1996) 90° (1995) 0.11" 0"
Jul 13 53° 82° 37° (2008) 96° (2003) 0.1" 0"
Jul 14 53° 82° 38° (1997) 95° (2000) 0.1" 0"
Jul 15 54° 82° 35° (1972) 100° (2006) 0.11" 0"
Jul 16 54° 82° 37° (1992) 97° (2005) 0.1" 0"
Jul 17 54° 82° 37° (1992) 94° (2006) 0.1" 0"
Jul 18 54° 83° 36° (1972) 96° (2006) 0.1" 0"
Jul 19 54° 83° 31° (1976) 93° (2005) 0.1" 0"
Jul 20 54° 83° 38° (1994) 91° (1998) 0.11" 0"
Jul 21 54° 83° 39° (1994) 95° (2007) 0.1" 0"
Jul 22 54° 83° 41° (1994) 95° (2007) 0.11" 0"
Jul 23 54° 83° 36° (1990) 95° (2005) 0.1" 0"
Jul 24 54° 83° 39° (1996) 97° (2003) 0.1" 0"
Jul 25 54° 83° 37° (1996) 95° (2003) 0.1" 0"
Jul 26 54° 83° 36° (1994) 90° (2010) 0.11" 0"
Jul 27 54° 83° 30° (1976) 91° (1999) 0.1" 0"
Jul 28 54° 83° 39° (1993) 98° (2006) 0.1" 0"
Jul 29 54° 83° 38° (2004) 98° (2006) 0.1" 0"
Jul 30 54° 83° 38° (1992) 101° (2006) 0.1" 0"
Jul 31 54° 84° 41° (2009) 94° (2002) 0.1" 0"
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