Summit, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -1° 20° -36° (1996) 64° (1981) 0.59" 6.8"
February 27° -40° (1994) 62° (2000) 0.52" 6.7"
March 17° 38° -26° (1962) 78° (1963) 1.44" 9.6"
April 30° 56° -5° (1975) 94° (1980) 2.03" 4.1"
May 42° 69° 15° (2005) 95° (1959) 2.83" 0.1"
June 52° 77° 30° (1989) 103° (1988) 3.65" 0.1"
July 56° 82° 38° (1971) 103° (1966) 3.64" 0"
August 55° 80° 32° (1987) 102° (1965) 3.23" 0"
September 45° 71° 15° (1974) 96° (1984) 2.06" 0"
October 33° 58° 5° (1991) 88° (1993) 1.86" 1.2"
November 18° 37° -25° (1985) 75° (1978) 0.93" 3.8"
December 24° -34° (1983) 57° (1998) 0.35" 5.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 50° 76° 35° (1965) 92° (1960) 0.09" NA
Sep 2 50° 76° 34° (1974) 93° (1983) 0.08" NA
Sep 3 50° 76° 31° (1974) 92° (1960) 0.08" NA
Sep 4 49° 75° 34° (1956) 92° (2007) 0.08" NA
Sep 5 49° 75° 31° (1965) 95° (1978) 0.08" NA
Sep 6 49° 75° 31° (1956) 96° (1980) 0.08" NA
Sep 7 48° 74° 32° (1986) 94° (1976) 0.08" NA
Sep 8 48° 74° 34° (1992) 96° (1959) 0.07" NA
Sep 9 47° 74° 35° (1976) 90° (1958) 0.07" NA
Sep 10 47° 73° 27° (1959) 90° (1975) 0.07" NA
Sep 11 47° 73° 29° (1964) 91° (1978) 0.07" NA
Sep 12 46° 73° 27° (1975) 89° (1969) 0.07" NA
Sep 13 46° 72° 31° (1970) 90° (1990) 0.07" NA
Sep 14 45° 72° 31° (1956) 92° (1969) 0.07" NA
Sep 15 45° 72° 28° (1993) 89° (1969) 0.07" NA
Sep 16 45° 71° 27° (1959) 87° (2002) 0.07" NA
Sep 17 44° 71° 31° (1971) 90° (1988) 0.07" NA
Sep 18 44° 71° 31° (1993) 93° (1984) 0.07" NA
Sep 19 44° 70° 32° (2003) 96° (1984) 0.06" NA
Sep 20 43° 70° 27° (1995) 89° (1984) 0.06" NA
Sep 21 43° 70° 25° (1983) 85° (1984) 0.06" NA
Sep 22 43° 69° 21° (1974) 85° (1958) 0.06" NA
Sep 23 42° 69° 24° (1989) 86° (2007) 0.06" NA
Sep 24 42° 68° 23° (2000) 84° (1990) 0.06" NA
Sep 25 42° 68° 25° (1982) 83° (1967) 0.06" NA
Sep 26 41° 68° 18° (1965) 90° (1974) 0.06" NA
Sep 27 41° 67° 23° (1967) 90° (1956) 0.06" NA
Sep 28 40° 67° 19° (1992) 84° (1956) 0.06" NA
Sep 29 40° 67° 21° (1984) 84° (2000) 0.06" NA
Sep 30 40° 66° 15° (1974) 88° (1976) 0.06" NA
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