Summit, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° -36° (1996) 64° (1981) 0.56" 9.3"
February 27° -40° (1994) 62° (2000) 0.68" 10.8"
March 19° 38° -26° (1962) 78° (1963) 1.18" 10.4"
April 31° 56° -5° (1975) 94° (1980) 2.33" 6.2"
May 43° 68° 15° (2005) 95° (1959) 2.82" 0.5"
June 53° 76° 30° (1989) 103° (1988) 3.98" 0"
July 58° 82° 38° (1971) 103° (1966) 3.76" 0"
August 56° 80° 32° (1987) 102° (1965) 3.09" 0"
September 47° 72° 15° (1974) 96° (1984) 3.02" 0"
October 34° 57° 5° (1991) 88° (1993) 2.3" 1.3"
November 20° 39° -25° (1985) 75° (1978) 0.97" 4.6"
December 24° -34° (1983) 57° (1998) 0.53" 9.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 38° 64° 20° (1984) 95° (1959) 0.09" 0.1"
May 2 38° 64° 18° (1976) 92° (1959) 0.08" 0"
May 3 39° 65° 15° (2005) 82° (1981) 0.09" 0.1"
May 4 39° 65° 19° (1967) 84° (1980) 0.08" 0"
May 5 39° 65° 23° (1976) 89° (2000) 0.09" 0.1"
May 6 40° 66° 21° (1976) 85° (2004) 0.08" 0"
May 7 40° 66° 19° (1976) 83° (1963) 0.09" 0.1"
May 8 41° 66° 22° (1980) 83° (1992) 0.09" 0"
May 9 41° 67° 24° (1966) 85° (1987) 0.09" 0.1"
May 10 41° 67° 20° (1981) 87° (1987) 0.09" 0"
May 11 42° 67° 23° (2008) 82° (2004) 0.09" 0"
May 12 42° 67° 25° (1971) 87° (1991) 0.09" 0"
May 13 42° 68° 23° (1997) 85° (1965) 0.09" 0"
May 14 43° 68° 25° (1959) 89° (1991) 0.09" 0"
May 15 43° 68° 20° (1959) 86° (1991) 0.09" 0"
May 16 43° 68° 28° (1983) 87° (1987) 0.08" 0"
May 17 44° 69° 28° (1968) 86° (1972) 0.09" 0"
May 18 44° 69° 27° (2002) 86° (1988) 0.09" 0"
May 19 44° 69° 29° (1971) 92° (2009) 0.1" 0"
May 20 45° 69° 27° (1997) 92° (2009) 0.08" 0"
May 21 45° 70° 28° (1963) 91° (1964) 0.09" 0"
May 22 45° 70° 21° (1963) 88° (1964) 0.09" 0"
May 23 46° 70° 30° (1992) 84° (1994) 0.09" 0"
May 24 46° 70° 26° (2002) 86° (2010) 0.09" 0"
May 25 46° 70° 30° (1971) 86° (1959) 0.09" 0"
May 26 47° 71° 29° (1984) 85° (1966) 0.09" 0"
May 27 47° 71° 29° (1965) 90° (1969) 0.1" 0"
May 28 47° 71° 28° (1965) 90° (1969) 0.1" 0"
May 29 48° 71° 36° (1984) 88° (2006) 0.11" 0"
May 30 48° 72° 36° (1964) 86° (2002) 0.1" 0"
May 31 48° 72° 35° (1964) 85° (1986) 0.11" 0"
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