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
May 1 37° 63° 20° (1984) 95° (1959) 0.08" NA
May 2 37° 64° 18° (1976) 92° (1959) 0.08" NA
May 3 38° 64° 15° (2005) 82° (1981) 0.08" NA
May 4 38° 65° 19° (1967) 84° (1980) 0.08" NA
May 5 38° 65° 23° (1976) 89° (2000) 0.08" NA
May 6 39° 65° 21° (1976) 85° (2004) 0.08" NA
May 7 39° 66° 19° (1976) 83° (1963) 0.08" NA
May 8 40° 66° 22° (1980) 83° (1992) 0.08" NA
May 9 40° 67° 24° (1966) 85° (1987) 0.08" NA
May 10 40° 67° 20° (1981) 87° (1987) 0.08" NA
May 11 41° 67° 26° (1980) 82° (2004) 0.09" NA
May 12 41° 68° 25° (1971) 87° (1991) 0.09" NA
May 13 42° 68° 23° (1997) 85° (1965) 0.09" NA
May 14 42° 68° 25° (1959) 89° (1991) 0.09" NA
May 15 42° 69° 20° (1959) 86° (1991) 0.09" NA
May 16 43° 69° 28° (1983) 87° (1987) 0.09" NA
May 17 43° 70° 28° (1968) 86° (1972) 0.09" NA
May 18 43° 70° 27° (2002) 86° (1988) 0.09" NA
May 19 44° 70° 29° (1971) 85° (1992) 0.09" NA
May 20 44° 70° 27° (1997) 85° (1972) 0.09" NA
May 21 44° 71° 28° (1963) 91° (1964) 0.1" NA
May 22 45° 71° 21° (1963) 88° (1964) 0.1" NA
May 23 45° 71° 30° (1992) 84° (1994) 0.1" NA
May 24 45° 72° 26° (2002) 83° (1980) 0.1" NA
May 25 46° 72° 30° (1971) 86° (1959) 0.1" NA
May 26 46° 72° 29° (1984) 85° (1966) 0.1" NA
May 27 46° 73° 29° (1965) 90° (1969) 0.1" NA
May 28 47° 73° 28° (1965) 90° (1969) 0.1" NA
May 29 47° 73° 36° (1984) 88° (2006) 0.11" NA
May 30 47° 73° 36° (1964) 86° (2002) 0.11" NA
May 31 48° 74° 35° (1964) 85° (1986) 0.11" NA
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