Mount Rushmore Natl Memorial, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 33° -38° (1963) 68° (1981) 0.38" 5.1"
February 19° 36° -29° (1989) 68° (1982) 0.55" 6.6"
March 23° 42° -12° (1965) 78° (1968) 1.17" 8.3"
April 31° 50° 1° (1975) 85° (1989) 2.21" 10.1"
May 41° 61° 14° (1967) 93° (1969) 3.95" 1.9"
June 51° 72° 27° (1981) 99° (1970) 3.74" 0.2"
July 58° 79° 35° (1986) 100° (2006) 3.16" 0"
August 58° 77° 33° (1968) 99° (1973) 2.04" 0"
September 49° 67° 19° (1985) 97° (1978) 1.55" 0.7"
October 37° 55° 1° (1991) 84° (1976) 1.58" 2.3"
November 25° 41° -12° (1985) 75° (1975) 0.64" 7.2"
December 18° 34° -31° (1983) 67° (1997) 0.46" 6.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 60° 80° 46° (1995) 93° (1988) 0.08" NA
Aug 2 60° 80° 42° (1978) 90° (1985) 0.08" NA
Aug 3 60° 80° 42° (1978) 90° (1969) 0.08" NA
Aug 4 60° 80° 41° (1978) 93° (2001) 0.08" NA
Aug 5 59° 80° 46° (1992) 93° (1970) 0.08" NA
Aug 6 59° 80° 48° (1989) 96° (1980) 0.08" NA
Aug 7 59° 79° 47° (1989) 96° (1975) 0.07" NA
Aug 8 59° 79° 45° (1966) 95° (1975) 0.07" NA
Aug 9 59° 79° 45° (1985) 94° (1983) 0.07" NA
Aug 10 59° 79° 44° (1997) 93° (1983) 0.07" NA
Aug 11 59° 79° 38° (1968) 98° (1969) 0.07" NA
Aug 12 59° 79° 41° (1977) 97° (1969) 0.07" NA
Aug 13 59° 79° 42° (1966) 97° (2007) 0.07" NA
Aug 14 59° 78° 42° (1979) 98° (1971) 0.07" NA
Aug 15 58° 78° 45° (1978) 98° (1988) 0.07" NA
Aug 16 58° 78° 45° (1968) 97° (1988) 0.06" NA
Aug 17 58° 78° 40° (1968) 95° (1970) 0.06" NA
Aug 18 58° 78° 33° (1968) 94° (1976) 0.06" NA
Aug 19 58° 77° 38° (2006) 96° (1986) 0.06" NA
Aug 20 57° 77° 45° (1980) 99° (1973) 0.06" NA
Aug 21 57° 77° 42° (1964) 92° (1978) 0.06" NA
Aug 22 57° 76° 35° (1966) 91° (2006) 0.06" NA
Aug 23 57° 76° 40° (1966) 94° (1975) 0.06" NA
Aug 24 56° 76° 38° (1992) 96° (1967) 0.06" NA
Aug 25 56° 75° 38° (1992) 94° (1991) 0.06" NA
Aug 26 56° 75° 39° (1992) 96° (1970) 0.06" NA
Aug 27 55° 75° 39° (1964) 94° (1991) 0.06" NA
Aug 28 55° 74° 44° (2004) 93° (1983) 0.06" NA
Aug 29 55° 74° 45° (1964) 90° (1983) 0.05" NA
Aug 30 54° 74° 40° (1994) 94° (1990) 0.05" NA
Aug 31 54° 73° 37° (1994) 94° (1978) 0.05" NA
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