Sweeney, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 30° -33° (1988) 67° (1981) 0.31" NA
February 13° 36° -37° (1994) 74° (1992) 0.43" NA
March 22° 47° -23° (1998) 88° (1988) 1.36" NA
April 33° 61° 3° (1997) 98° (1992) 2.06" NA
May 44° 72° 12° (1981) 97° (1992) 3.31" NA
June 54° 82° 31° (1998) 109° (1988) 3.51" NA
July 59° 89° 38° (1981) 117° (2006) 2.69" NA
August 58° 89° 35° (1978) 110° (1988) 2.28" NA
September 47° 78° 18° (1984) 107° (2001) 1.49" NA
October 35° 64° 1° (1991) 97° (1997) 1.51" NA
November 20° 44° -16° (1985) 87° (1999) 0.55" NA
December 10° 33° -31° (1990) 73° (1998) 0.32" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 39° 67° 23° (1984) 93° (1992) 0.09" NA
May 2 39° 67° 19° (2005) 90° (1981) 0.09" NA
May 3 39° 68° 14° (1976) 94° (1982) 0.09" NA
May 4 40° 68° 19° (2005) 95° (2000) 0.09" NA
May 5 40° 69° 26° (2006) 95° (2000) 0.09" NA
May 6 41° 69° 17° (1976) 88° (2000) 0.1" NA
May 7 41° 69° 21° (1976) 89° (1992) 0.1" NA
May 8 41° 70° 14° (1980) 88° (2004) 0.1" NA
May 9 42° 70° 25° (1984) 90° (1992) 0.1" NA
May 10 42° 70° 12° (1981) 89° (1987) 0.1" NA
May 11 43° 71° 25° (1979) 90° (2004) 0.1" NA
May 12 43° 71° 30° (2006) 86° (1977) 0.1" NA
May 13 43° 71° 26° (2000) 87° (2001) 0.1" NA
May 14 44° 72° 27° (2004) 92° (2001) 0.11" NA
May 15 44° 72° 29° (1980) 91° (1987) 0.11" NA
May 16 45° 72° 32° (1983) 92° (1987) 0.11" NA
May 17 45° 73° 28° (1976) 90° (1998) 0.11" NA
May 18 45° 73° 26° (2002) 88° (1976) 0.11" NA
May 19 46° 73° 26° (1981) 97° (1992) 0.11" NA
May 20 46° 74° 26° (2003) 92° (1992) 0.11" NA
May 21 46° 74° 36° (1979) 90° (1980) 0.11" NA
May 22 47° 74° 35° (2001) 88° (1980) 0.11" NA
May 23 47° 75° 30° (1984) 88° (1984) 0.11" NA
May 24 47° 75° 26° (2002) 90° (1978) 0.12" NA
May 25 48° 75° 34° (2002) 88° (1978) 0.12" NA
May 26 48° 76° 28° (1992) 90° (1983) 0.12" NA
May 27 48° 76° 31° (1992) 95° (2006) 0.12" NA
May 28 49° 76° 31° (1992) 95° (1979) 0.12" NA
May 29 49° 77° 34° (1984) 91° (2002) 0.12" NA
May 30 49° 77° 34° (1983) 93° (2002) 0.12" NA
May 31 50° 77° 40° (1982) 91° (1984) 0.12" NA
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