Rapid City April 18 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of April 18.
April 18 All-Time Records
1948–2023
Highest temperature 90 °F 1987
Lowest temperature 16 °F 2022
Lowest daily high 30 °F 1970
Highest daily low 58 °F 1985
Most precipitation 1.67 inches 1970
Most snow 15.6 inches 1970
April 18 Average Weather
1991–2020 1
Average high 57.9 °F
Average low 32.0 °F
Chance precipitation 36.0%
Chance snow 13.3%
Rapid City April 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 64 31 0.01 n/a
2022 53 16 0.00 n/a
2021 65 29 0.12 n/a
2020 62 29 0.00 n/a
2019 61 31 0.00 n/a
2018 56 28 0.00 0.0
2017 64 34 0.02 0.0
2016 37 34 0.12 0.0
2015 52 43 0.28 0.0
2014 77 31 0.00 0.0
2013 34 19 0.00 0.5
2012 63 33 0.01 0.0
2011 34 30 0.48 3.9
2010 63 40 0.05 0.0
2009 47 33 0.07 0.0
2008 66 27 0.00 0.0
2007 73 37 0.00 0.0
2006 42 34 0.00 0.0
2005 75 46 0.00 n/a
2004 58 42 0.01 n/a
2003 48 36 0.41 n/a
2002 59 28 0.00 n/a
2001 76 36 0.00 n/a
2000 59 38 0.04 0.0
1999 72 28 0.00 0.0
1998 52 29 0.04 n/a
1997 69 41 0.00 n/a
1996 65 36 0.00 n/a
1995 44 30 0.10 0.9
1994 78 45 0.00 0.0
1993 63 39 0.00 0.0
1992 63 42 0.07 0.1
1991 48 32 0.20 0.0
1990 79 31 0.00 0.0
1989 64 32 0.00 0.0
1988 62 22 0.00 0.0
1987 90 52 0.00 0.0
1986 55 34 0.58 1.0
1985 83 58 0.00 0.0
1984 67 28 0.00 0.0
1983 69 33 0.00 0.0
1982 67 33 0.00 0.0
1981 75 37 0.00 0.0
1980 81 40 0.00 0.0
1979 86 52 0.00 0.0
1978 37 33 0.62 2.6
1977 49 38 0.01 0.0
1976 57 29 0.00 0.0
1975 46 28 0.00 0.0
1974 71 32 0.00 0.0
1973 63 40 0.56 0.0
1972 35 32 0.15 0.9
1971 59 46 0.00 0.0
1970 30 28 1.67 15.6
1969 72 30 0.00 0.0
1968 43 27 0.00 0.0
1967 68 30 0.00 0.0
1966 32 20 0.60 6.0
1965 62 31 0.00 0.0
1964 49 32 0.07 0.6
1963 38 29 0.25 2.0
1962 78 43 0.00 0.0
1961 82 32 0.00 0.0
1960 70 35 0.00 0.0
1959 32 28 0.46 2.6
1958 64 45 0.00 0.0
1957 47 35 0.11 0.0
1956 59 29 0.00 0.0
1955 74 39 0.00 0.0
1954 53 34 0.10 0.0
1953 34 16 0.00 0.0
1952 77 44 0.00 0.0
1951 47 32 0.00 0.0
1950 46 33 0.00 0.0
1949 68 30 0.00 0.0
What's the all-time high for Rapid City on 4/18?
For the date of Apr 18, the highest temperature ever reached in Rapid City history is 90 °F which happened in 1987.
Highest Temperatures in Rapid City on April 18
Rank Temperature Year
1 90 °F 1987
2 86 °F 1979
3 83 °F 1985
4 82 °F 1961
5 81 °F 1980
6 79 °F 1990
7 78 °F 1962
7 78 °F 1994
9 77 °F 2014
9 77 °F 1952
What's the all-time low for Rapid City on 4/18?
For the date of Apr 18, the lowest temperature ever reached in Rapid City history is 16 °F which has happened 2 times, most recently in 2022.
Lowest Temperatures in Rapid City on April 18
Rank Temperature Year
1 16 °F 1953
1 16 °F 2022
3 19 °F 2013
4 20 °F 1966
5 22 °F 1988
6 27 °F 1968
6 27 °F 2008
8 28 °F 1970
8 28 °F 1959
8 28 °F 1984
8 28 °F 2002
8 28 °F 2018
8 28 °F 1999
8 28 °F 1975
Lowest High Temperatures in Rapid City on April 18
Rank Temperature Year
1 30 °F 1970
2 32 °F 1959
2 32 °F 1966
4 34 °F 2011
4 34 °F 1953
4 34 °F 2013
7 35 °F 1972
8 37 °F 2016
8 37 °F 1978
10 38 °F 1963
What's the most it has ever rained in Rapid City on 4/18?
For the date of Apr 18, the most precipitation ever recorded in Rapid City history is 1.67 inches which happened in 1970.
All-Time Most Precipitation in Rapid City on April 18
Rank Precipitation Year
1 1.67 inches 1970
2 0.62 inches 1978
3 0.60 inches 1966
4 0.58 inches 1986
5 0.56 inches 1973
6 0.48 inches 2011
7 0.46 inches 1959
8 0.41 inches 2003
9 0.28 inches 2015
10 0.25 inches 1963
All-Time Most Snow in Rapid City on April 18
Rank Precipitation Year
1 15.6 inches 1970
2 6.0 inches 1966
3 3.9 inches 2011
4 2.6 inches 1959
4 2.6 inches 1978
6 2.0 inches 1963
7 1.0 inches 1986
8 0.9 inches 1995
8 0.9 inches 1972
10 0.6 inches 1964
Weather Station Details
Years Station Coordinates
1948–2023 Rapid City Regional Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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