Custer, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 36° -43° (1963) 68° (1981) 0.39" 5.7"
February 16° 40° -34° (1962) 68° (1958) 0.63" 8.6"
March 21° 46° -30° (1956) 72° (1946) 1.07" 13.1"
April 28° 54° -15° (1966) 84° (1989) 2.06" 10.2"
May 37° 63° 5° (1954) 90° (1969) 3.31" 0.8"
June 46° 73° 19° (1951) 97° (1954) 3.17" 0.2"
July 52° 80° 30° (1971) 100° (1954) 3.02" 0"
August 50° 79° 22° (1966) 96° (1988) 2.38" 0"
September 41° 71° 8° (1961) 97° (1971) 1.5" 0.7"
October 31° 59° -5° (1991) 85° (1963) 1.47" 3.6"
November 21° 44° -25° (1952) 76° (1975) 0.67" 7.6"
December 14° 37° -37° (1964) 68° (1979) 0.52" 7.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 53° 81° 35° (1968) 94° (1966) 0.09" NA
Aug 2 53° 81° 37° (1950) 93° (1963) 0.09" NA
Aug 3 53° 81° 32° (1978) 92° (1947) 0.09" NA
Aug 4 52° 81° 36° (1978) 94° (1947) 0.09" NA
Aug 5 52° 81° 35° (1980) 94° (1960) 0.09" NA
Aug 6 52° 81° 42° (1976) 92° (1964) 0.09" NA
Aug 7 52° 81° 37° (1953) 95° (1975) 0.09" NA
Aug 8 52° 81° 32° (1966) 96° (1975) 0.08" NA
Aug 9 52° 81° 32° (1960) 93° (1992) 0.08" NA
Aug 10 52° 81° 34° (1960) 92° (1958) 0.08" NA
Aug 11 52° 81° 37° (1980) 92° (1978) 0.08" NA
Aug 12 51° 81° 31° (1964) 94° (1969) 0.08" NA
Aug 13 51° 80° 29° (1966) 94° (1965) 0.08" NA
Aug 14 51° 80° 38° (1969) 92° (1970) 0.08" NA
Aug 15 51° 80° 32° (1959) 94° (1988) 0.08" NA
Aug 16 51° 80° 35° (1985) 96° (1988) 0.08" NA
Aug 17 51° 80° 34° (2002) 91° (1948) 0.08" NA
Aug 18 50° 80° 34° (1966) 92° (1959) 0.08" NA
Aug 19 50° 79° 30° (1978) 95° (1986) 0.07" NA
Aug 20 50° 79° 33° (1950) 91° (1948) 0.07" NA
Aug 21 50° 79° 33° (1950) 91° (1947) 0.07" NA
Aug 22 49° 79° 22° (1966) 91° (1943) 0.07" NA
Aug 23 49° 79° 28° (1966) 95° (1971) 0.07" NA
Aug 24 49° 78° 28° (1962) 92° (1949) 0.07" NA
Aug 25 49° 78° 26° (1964) 90° (1967) 0.07" NA
Aug 26 48° 78° 29° (1960) 89° (1994) 0.07" NA
Aug 27 48° 77° 34° (1965) 91° (1967) 0.07" NA
Aug 28 48° 77° 27° (1962) 92° (1969) 0.06" NA
Aug 29 47° 77° 34° (1988) 91° (1969) 0.06" NA
Aug 30 47° 76° 32° (1946) 91° (1961) 0.06" NA
Aug 31 47° 76° 30° (1965) 94° (1948) 0.06" NA
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