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
Dec 1 14° 37° -9° (2006) 73° (1998) 0.01" NA
Dec 2 14° 36° -17° (1985) 69° (1998) 0.01" NA
Dec 3 14° 36° -10° (1978) 59° (1998) 0.01" NA
Dec 4 13° 36° -12° (2006) 69° (1975) 0.01" NA
Dec 5 13° 35° -8° (2002) 68° (1988) 0.01" NA
Dec 6 13° 35° -16° (1976) 52° (1991) 0.01" NA
Dec 7 12° 35° -13° (2006) 59° (1987) 0.01" NA
Dec 8 12° 35° -13° (1976) 60° (1990) 0.01" NA
Dec 9 12° 34° -20° (1977) 62° (1990) 0.01" NA
Dec 10 11° 34° -10° (1976) 64° (2006) 0.01" NA
Dec 11 11° 34° -9° (2000) 52° (1998) 0.01" NA
Dec 12 11° 33° -21° (2000) 58° (2004) 0.01" NA
Dec 13 11° 33° -18° (1985) 62° (1988) 0.01" NA
Dec 14 10° 33° -15° (1989) 66° (1998) 0.01" NA
Dec 15 10° 33° -22° (1989) 61° (1998) 0.01" NA
Dec 16 10° 32° -20° (1989) 55° (1976) 0.01" NA
Dec 17 10° 32° -20° (1975) 63° (1998) 0.01" NA
Dec 18 32° -27° (1975) 67° (1979) 0.01" NA
Dec 19 32° -18° (1989) 61° (1979) 0.01" NA
Dec 20 32° -16° (1990) 59° (1979) 0.01" NA
Dec 21 31° -29° (1983) 55° (1979) 0.01" NA
Dec 22 31° -30° (1989) 60° (1982) 0.02" NA
Dec 23 31° -30° (1983) 47° (1986) 0.01" NA
Dec 24 31° -23° (1983) 54° (1992) 0.01" NA
Dec 25 31° -19° (1983) 55° (1999) 0.01" NA
Dec 26 30° -23° (1996) 50° (1986) 0.01" NA
Dec 27 30° -9° (1996) 56° (1980) 0.01" NA
Dec 28 30° -9° (1988) 58° (1999) 0.01" NA
Dec 29 30° -21° (1990) 63° (2002) 0.01" NA
Dec 30 30° -31° (1990) 54° (1986) 0.01" NA
Dec 31 30° -25° (1978) 58° (2004) 0.01" NA
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