Stephan, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -36° (1982) 65° (1987) 0.41" NA
February 31° -40° (1994) 72° (2000) 0.5" NA
March 18° 43° -25° (1960) 85° (1988) 1.31" NA
April 31° 58° -1° (1975) 99° (1980) 1.98" NA
May 43° 70° 13° (1967) 103° (1969) 2.95" NA
June 53° 80° 29° (1964) 110° (1988) 2.95" NA
July 58° 87° 32° (1964) 111° (2006) 2.62" NA
August 56° 85° 31° (1986) 112° (1965) 2.07" NA
September 46° 75° 17° (1974) 107° (1983) 1.77" NA
October 32° 61° 2° (1991) 95° (1997) 1.75" NA
November 17° 41° -22° (1959) 82° (1999) 0.65" NA
December 28° -32° (1990) 70° (1998) 0.41" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 27° -31° (1996) 64° (1992) 0.01" NA
Feb 2 27° -36° (1996) 67° (1991) 0.01" NA
Feb 3 27° -32° (1996) 63° (1962) 0.01" NA
Feb 4 27° -25° (1996) 58° (1963) 0.01" NA
Feb 5 28° -28° (1982) 66° (2005) 0.01" NA
Feb 6 28° -19° (1971) 58° (1987) 0.01" NA
Feb 7 28° -28° (1985) 66° (1987) 0.01" NA
Feb 8 28° -25° (1971) 60° (1991) 0.01" NA
Feb 9 29° -40° (1994) 65° (2000) 0.01" NA
Feb 10 29° -25° (1985) 56° (1999) 0.02" NA
Feb 11 29° -29° (1988) 64° (1987) 0.02" NA
Feb 12 30° -12° (1960) 61° (1987) 0.02" NA
Feb 13 30° -12° (1970) 66° (1983) 0.02" NA
Feb 14 30° -12° (2007) 65° (1999) 0.02" NA
Feb 15 30° -21° (2007) 55° (1981) 0.02" NA
Feb 16 31° -23° (1979) 61° (1981) 0.02" NA
Feb 17 31° -21° (1967) 60° (1981) 0.02" NA
Feb 18 32° -19° (1966) 64° (1983) 0.02" NA
Feb 19 32° -19° (1960) 62° (1965) 0.02" NA
Feb 20 32° -14° (1970) 58° (1981) 0.02" NA
Feb 21 33° -21° (1963) 66° (1995) 0.02" NA
Feb 22 33° -24° (1962) 67° (2000) 0.02" NA
Feb 23 10° 33° -14° (1993) 72° (2000) 0.02" NA
Feb 24 10° 34° -26° (1965) 65° (1976) 0.02" NA
Feb 25 11° 34° -14° (2003) 61° (1998) 0.02" NA
Feb 26 11° 35° -22° (1962) 63° (1976) 0.03" NA
Feb 27 11° 35° -23° (1962) 64° (2005) 0.03" NA
Feb 28 12° 35° -30° (1962) 59° (1985) 0.03" NA
Feb 29 12° 35° -12° (1960) 71° (1992) 0.03" NA
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