Rapid City, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 34° -25° (1979) 73° (1987) 0.29" 4.2"
February 14° 38° -28° (1996) 78° (1988) 0.36" 5.9"
March 21° 45° -19° (1996) 81° (1986) 0.9" 9.1"
April 31° 55° 0° (1975) 90° (1980) 1.97" 5.3"
May 42° 65° 19° (1954) 99° (1969) 3.46" 0.7"
June 52° 75° 32° (1998) 105° (1974) 3.04" 0.1"
July 58° 83° 40° (1959) 107° (1981) 2.71" 0"
August 55° 82° 38° (1992) 104° (1974) 2.09" 0"
September 45° 73° 21° (1972) 103° (1960) 1.23" 0.1"
October 34° 61° -3° (1991) 92° (1975) 1.57" 1.4"
November 21° 44° -17° (1985) 83° (1999) 0.53" 3.7"
December 13° 37° -29° (1989) 74° (1979) 0.3" 5.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 16° 39° 3° (1954) 72° (1973) 0" NA
Dec 2 16° 39° -8° (1980) 67° (1959) 0.01" NA
Dec 3 15° 39° -3° (1978) 68° (1975) 0.01" NA
Dec 4 15° 39° -5° (1972) 73° (1965) 0.01" NA
Dec 5 15° 39° -20° (1972) 66° (1987) 0.01" NA
Dec 6 15° 38° -21° (1972) 66° (1984) 0.01" NA
Dec 7 14° 38° -15° (1972) 70° (1984) 0.01" NA
Dec 8 14° 38° -23° (1972) 62° (1984) 0.01" NA
Dec 9 14° 38° -22° (1972) 69° (1957) 0.01" NA
Dec 10 14° 38° -17° (1972) 65° (1987) 0.01" NA
Dec 11 13° 38° -12° (1989) 66° (1990) 0.01" NA
Dec 12 13° 38° -15° (2000) 66° (2004) 0.01" NA
Dec 13 13° 37° -11° (2000) 61° (1993) 0.01" NA
Dec 14 13° 37° -10° (1963) 65° (1979) 0.01" NA
Dec 15 13° 37° -26° (1989) 73° (1997) 0.01" NA
Dec 16 12° 37° -18° (1979) 65° (1962) 0.01" NA
Dec 17 12° 37° -20° (1964) 69° (1980) 0.01" NA
Dec 18 12° 37° -18° (1964) 74° (1979) 0.01" NA
Dec 19 12° 37° -15° (1989) 64° (1988) 0.01" NA
Dec 20 12° 36° -19° (1990) 65° (1954) 0.01" NA
Dec 21 12° 36° -18° (1990) 60° (1955) 0.01" NA
Dec 22 11° 36° -29° (1989) 66° (1991) 0.01" NA
Dec 23 11° 36° -26° (1989) 67° (1955) 0.01" NA
Dec 24 11° 36° -16° (1996) 67° (1955) 0.01" NA
Dec 25 11° 36° -15° (1996) 63° (1963) 0.01" NA
Dec 26 11° 36° -24° (1996) 62° (1972) 0.01" NA
Dec 27 11° 35° -23° (1996) 72° (1980) 0.01" NA
Dec 28 11° 35° -2° (1988) 62° (1999) 0.01" NA
Dec 29 11° 35° -26° (1990) 65° (1956) 0.01" NA
Dec 30 11° 35° -28° (1990) 60° (1999) 0.01" NA
Dec 31 10° 35° -20° (1978) 63° (1963) 0.01" NA
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