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
Jun 1 49° 75° 33° (1983) 88° (1966) 0.1" NA
Jun 2 49° 76° 29° (1964) 89° (1972) 0.1" NA
Jun 3 50° 76° 31° (1985) 91° (1977) 0.1" NA
Jun 4 50° 76° 34° (1985) 95° (1977) 0.1" NA
Jun 5 50° 77° 33° (2000) 93° (1977) 0.1" NA
Jun 6 51° 77° 37° (1998) 99° (1987) 0.1" NA
Jun 7 51° 77° 34° (1983) 95° (1959) 0.1" NA
Jun 8 51° 77° 36° (1978) 100° (1964) 0.1" NA
Jun 9 51° 78° 38° (1966) 106° (2000) 0.1" NA
Jun 10 52° 78° 35° (1964) 104° (1976) 0.1" NA
Jun 11 52° 78° 35° (1985) 93° (1988) 0.1" NA
Jun 12 52° 79° 38° (1969) 95° (1980) 0.1" NA
Jun 13 53° 79° 34° (1969) 96° (1979) 0.1" NA
Jun 14 53° 79° 32° (1969) 102° (1959) 0.1" NA
Jun 15 53° 80° 39° (1969) 103° (1959) 0.1" NA
Jun 16 53° 80° 36° (1974) 102° (1959) 0.1" NA
Jun 17 54° 80° 36° (1974) 98° (1988) 0.1" NA
Jun 18 54° 80° 34° (1976) 101° (1988) 0.1" NA
Jun 19 54° 81° 34° (2004) 100° (1989) 0.1" NA
Jun 20 54° 81° 39° (1969) 101° (1974) 0.1" NA
Jun 21 54° 81° 37° (1972) 105° (1988) 0.1" NA
Jun 22 55° 82° 38° (1972) 95° (1976) 0.1" NA
Jun 23 55° 82° 42° (1972) 99° (1981) 0.1" NA
Jun 24 55° 82° 43° (1960) 110° (1988) 0.1" NA
Jun 25 55° 83° 38° (2004) 100° (1980) 0.1" NA
Jun 26 56° 83° 43° (1985) 104° (1971) 0.09" NA
Jun 27 56° 83° 39° (1985) 102° (1971) 0.09" NA
Jun 28 56° 83° 40° (1985) 102° (1963) 0.09" NA
Jun 29 56° 84° 34° (1985) 106° (1963) 0.09" NA
Jun 30 56° 84° 34° (1985) 101° (2002) 0.09" NA
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