Rapid City, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -12° -31.7° (1979) 22.8° (1987) 0.29" 4.2"
February -10° -33.3° (1996) 25.6° (1988) 0.36" 5.9"
March -6° -28.3° (1996) 27.2° (1986) 0.9" 9.1"
April -1° 13° -17.8° (1975) 32.2° (1980) 1.97" 5.3"
May 18° -7.2° (1954) 37.2° (1969) 3.46" 0.7"
June 11° 24° 0° (1998) 40.6° (1974) 3.04" 0.1"
July 14° 28° 4.4° (1959) 41.7° (1981) 2.71" 0"
August 13° 28° 3.3° (1992) 40° (1974) 2.09" 0"
September 23° -6.1° (1972) 39.4° (1960) 1.23" 0.1"
October 16° -19.4° (1991) 33.3° (1975) 1.57" 1.4"
November -6° -27.2° (1985) 28.3° (1999) 0.53" 3.7"
December -11° -33.9° (1989) 23.3° (1979) 0.3" 5.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 2.8° 15.6° -5° (1950) 32° (1992) 0.09" NA
May 2 2.8° 15.6° -5° (1990) 28° (1952) 0.1" NA
May 3 2.8° 15.6° -7° (1954) 31° (1952) 0.1" NA
May 4 3.3° 16.1° -5° (2005) 33° (1986) 0.1" NA
May 5 3.3° 16.1° -3° (1991) 28° (1986) 0.1" NA
May 6 3.9° 16.1° -3° (1989) 34° (2000) 0.1" NA
May 7 3.9° 16.7° -3° (1989) 31° (1963) 0.11" NA
May 8 3.9° 16.7° -3° (1980) 31° (1992) 0.11" NA
May 9 4.4° 16.7° -1° (1979) 28° (1962) 0.11" NA
May 10 4.4° 17.2° -3° (1990) 32° (1961) 0.11" NA
May 11 4.4° 17.2° -4° (1979) 30° (1961) 0.11" NA
May 12 17.2° -5° (1953) 31° (1960) 0.11" NA
May 13 17.8° -4° (1953) 31° (1955) 0.11" NA
May 14 17.8° -3° (1983) 34° (2001) 0.11" NA
May 15 5.6° 17.8° 0° (2005) 32° (1978) 0.11" NA
May 16 5.6° 18.3° 0° (2005) 32° (1979) 0.12" NA
May 17 5.6° 18.3° -2° (2004) 33° (1988) 0.12" NA
May 18 6.1° 18.3° 0° (1983) 31° (1988) 0.12" NA
May 19 6.1° 18.9° 1° (1997) 33° (1992) 0.12" NA
May 20 6.7° 18.9° -1° (1968) 33° (1992) 0.12" NA
May 21 6.7° 19.4° -2° (1974) 33° (1966) 0.12" NA
May 22 6.7° 19.4° -1° (1963) 31° (1966) 0.12" NA
May 23 7.2° 19.4° 1° (1974) 32° (1984) 0.12" NA
May 24 7.2° 20° -3° (2002) 32° (1984) 0.12" NA
May 25 7.2° 20° 1° (1975) 29° (1966) 0.12" NA
May 26 7.8° 20° -1° (1984) 36° (1969) 0.12" NA
May 27 7.8° 20.6° 2° (1992) 37° (1969) 0.12" NA
May 28 7.8° 20.6° 1° (1984) 32° (1951) 0.11" NA
May 29 8.3° 20.6° 1° (1982) 31° (1988) 0.11" NA
May 30 8.3° 21.1° -1° (1983) 32° (1969) 0.11" NA
May 31 8.3° 21.1° 0° (1982) 32° (1960) 0.11" NA
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