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
Mar 1 12° 36° -21° (1962) 72° (1974) 0.03" NA
Mar 2 13° 36° -12° (2003) 70° (1974) 0.03" NA
Mar 3 13° 37° -17° (1960) 64° (1974) 0.03" NA
Mar 4 13° 37° -25° (1960) 66° (2000) 0.03" NA
Mar 5 14° 38° -12° (1962) 71° (1987) 0.03" NA
Mar 6 14° 38° -12° (1989) 75° (2000) 0.03" NA
Mar 7 15° 38° -16° (1996) 71° (1987) 0.04" NA
Mar 8 15° 39° -16° (1996) 67° (2000) 0.04" NA
Mar 9 15° 39° -7° (1998) 61° (1988) 0.04" NA
Mar 10 16° 40° -8° (2002) 61° (1991) 0.04" NA
Mar 11 16° 40° -24° (1998) 74° (1995) 0.04" NA
Mar 12 17° 41° -7° (1998) 73° (1995) 0.04" NA
Mar 13 17° 41° -14° (1960) 77° (2007) 0.04" NA
Mar 14 17° 42° -10° (1960) 71° (1981) 0.04" NA
Mar 15 18° 42° -6° (1997) 72° (2003) 0.04" NA
Mar 16 18° 43° 3° (2002) 75° (1966) 0.04" NA
Mar 17 19° 43° 0° (1962) 78° (1968) 0.04" NA
Mar 18 19° 44° -7° (1965) 70° (1976) 0.04" NA
Mar 19 20° 44° -1° (1965) 77° (1994) 0.05" NA
Mar 20 20° 45° -2° (1965) 78° (2004) 0.05" NA
Mar 21 20° 45° -5° (1965) 75° (1994) 0.05" NA
Mar 22 21° 45° -14° (1965) 65° (1963) 0.05" NA
Mar 23 21° 46° -9° (1965) 77° (1963) 0.05" NA
Mar 24 22° 46° -6° (1974) 79° (1963) 0.05" NA
Mar 25 22° 47° -6° (1964) 77° (1961) 0.05" NA
Mar 26 22° 47° -10° (1964) 75° (1993) 0.05" NA
Mar 27 23° 48° -4° (1970) 85° (1988) 0.05" NA
Mar 28 23° 48° 2° (1969) 82° (1963) 0.05" NA
Mar 29 24° 49° -8° (1965) 79° (1986) 0.05" NA
Mar 30 24° 50° 0° (1975) 82° (1978) 0.05" NA
Mar 31 24° 50° 8° (1969) 81° (1963) 0.05" NA
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