Union Center, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° -31° (1998) 68° (2002) 0.35" 4.5"
February 12° 36° -40° (1994) 74° (1992) 0.47" 6.9"
March 21° 45° -22° (1998) 80° (1993) 1.15" 10.6"
April 30° 57° -3° (1997) 89° (2001) 1.71" 6.6"
May 41° 67° 17° (2005) 96° (1992) 3.62" 1.2"
June 51° 77° 32° (2001) 108° (2002) 3.06" 0"
July 57° 85° 40° (2004) 107° (2005) 2.26" 0"
August 54° 86° 33° (1992) 103° (2003) 1.61" 0"
September 44° 75° 14° (1991) 104° (2001) 1.32" 0"
October 31° 61° -5° (1991) 95° (1989) 1.52" 1.8"
November 19° 45° -12° (1996) 83° (1999) 0.68" 7"
December 34° -36° (1990) 70° (1998) 0.47" 6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 49° 81° 42° (1994) 96° (2002) 0.04" 0"
Sep 2 49° 81° 42° (1997) 98° (2004) 0.04" 0"
Sep 3 49° 80° 36° (2008) 96° (1998) 0.04" 0"
Sep 4 48° 80° 36° (2008) 100° (2005) 0.04" 0"
Sep 5 48° 79° 37° (1999) 104° (2001) 0.04" 0"
Sep 6 47° 79° 39° (1994) 99° (1996) 0.04" 0"
Sep 7 47° 78° 36° (2004) 98° (2002) 0.04" 0"
Sep 8 47° 78° 37° (1996) 98° (2002) 0.04" 0"
Sep 9 46° 77° 33° (2001) 96° (1990) 0.04" 0"
Sep 10 46° 77° 34° (1992) 100° (1994) 0.04" 0"
Sep 11 45° 77° 35° (1992) 97° (1998) 0.05" 0"
Sep 12 45° 76° 37° (2007) 91° (1990) 0.04" 0"
Sep 13 45° 76° 30° (1999) 98° (1990) 0.04" 0"
Sep 14 44° 75° 20° (1993) 90° (2000) 0.05" 0"
Sep 15 44° 75° 21° (1993) 89° (1997) 0.05" 0"
Sep 16 43° 74° 33° (1993) 92° (1997) 0.04" 0"
Sep 17 43° 74° 39° (1999) 93° (2002) 0.05" 0"
Sep 18 43° 73° 26° (1991) 94° (2000) 0.04" 0"
Sep 19 42° 73° 14° (1991) 97° (1998) 0.04" 0"
Sep 20 42° 72° 15° (1991) 87° (2004) 0.05" 0"
Sep 21 41° 72° 23° (1995) 87° (2005) 0.04" 0"
Sep 22 41° 72° 20° (1995) 85° (2005) 0.05" 0"
Sep 23 40° 71° 24° (1995) 94° (2007) 0.05" 0"
Sep 24 40° 71° 20° (2000) 91° (1992) 0.04" 0"
Sep 25 40° 70° 21° (2000) 94° (1992) 0.05" 0"
Sep 26 39° 70° 28° (2002) 91° (1990) 0.05" 0"
Sep 27 39° 69° 29° (2000) 90° (1990) 0.05" 0"
Sep 28 38° 69° 24° (1992) 86° (1995) 0.05" 0"
Sep 29 38° 69° 26° (1992) 89° (1994) 0.04" 0"
Sep 30 38° 68° 26° (2003) 89° (2007) 0.05" 0"
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