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
Jan 1 12° 36° -23° (1952) 57° (1997) 0.02" NA
Jan 2 12° 36° -21° (1968) 55° (1964) 0.01" NA
Jan 3 12° 35° -30° (1959) 59° (2003) 0.01" NA
Jan 4 12° 35° -31° (1959) 60° (1962) 0.01" NA
Jan 5 12° 35° -22° (1970) 54° (1981) 0.01" NA
Jan 6 12° 35° -17° (1971) 62° (1954) 0.01" NA
Jan 7 12° 35° -26° (1968) 64° (2003) 0.01" NA
Jan 8 12° 35° -24° (1970) 63° (2003) 0.01" NA
Jan 9 12° 35° -23° (1973) 62° (2003) 0.01" NA
Jan 10 12° 35° -24° (1962) 55° (2004) 0.01" NA
Jan 11 12° 35° -31° (1963) 58° (1987) 0.01" NA
Jan 12 12° 35° -29° (1963) 59° (1959) 0.01" NA
Jan 13 12° 35° -20° (1972) 59° (1996) 0.01" NA
Jan 14 12° 35° -26° (1972) 59° (1996) 0.01" NA
Jan 15 12° 35° -20° (1957) 54° (2000) 0.01" NA
Jan 16 12° 35° -18° (1982) 60° (1973) 0.01" NA
Jan 17 12° 35° -25° (1943) 58° (1974) 0.01" NA
Jan 18 12° 35° -30° (1943) 55° (1976) 0.01" NA
Jan 19 12° 35° -43° (1963) 54° (1986) 0.01" NA
Jan 20 12° 36° -31° (1962) 58° (1997) 0.01" NA
Jan 21 12° 36° -27° (1966) 56° (1994) 0.01" NA
Jan 22 13° 36° -25° (1962) 61° (1981) 0.01" NA
Jan 23 13° 36° -26° (1963) 64° (1981) 0.01" NA
Jan 24 13° 36° -18° (1963) 68° (1981) 0.01" NA
Jan 25 13° 36° -30° (1957) 61° (1968) 0.02" NA
Jan 26 13° 36° -25° (1957) 54° (1951) 0.02" NA
Jan 27 13° 37° -26° (1948) 58° (2002) 0.02" NA
Jan 28 13° 37° -28° (1951) 55° (1988) 0.02" NA
Jan 29 13° 37° -36° (1951) 55° (1989) 0.02" NA
Jan 30 14° 37° -26° (1951) 64° (1960) 0.02" NA
Jan 31 14° 37° -19° (1951) 60° (1960) 0.02" NA
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