Every 1 September to 10 October in Rapid City, SD from 1942 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.
| Year | Mean, °F | Rank | High, °F | Rank | Low, °F | Rank | Precipitation, in | Rank | Days missing |
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| 2026 | 65.4 | 3 | 79.5 | 6 | 51.4 | 2 | 1.53 | 39 | 0 |
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| 2025 | 64.9 | 4 | 80.7 | 2 | 49.2 | 4 | 1.65 | 35 | 0 |
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| 2024 | 67.8 | 1 | 85.7 | 1 | 49.9 | 3 | 1.18 | 49 | 0 |
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| 2023 | 62.1 | 16 | 77.3 | 13 | 46.9 | 19 | 1.67 | 34 | 0 |
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| 2022 | 62.8 | 9 | 78.2 | 9 | 47.4 | 12 | 0.81 | 63 | 0 |
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| 2021 | 64.4 | 5 | 80.6 | 4 | 48.2 | 10 | 0.90 | 60 | 0 |
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| 2020 | 59.3 | 39 | 76 | 31 | 42.5 | 68 | 1.11 | 51 | 0 |
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| 2019 | 57.2 | 65 | 70.4 | 68 | 44.1 | 50 | 3.23 | 11 | 0 |
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| 2018 | 55.5 | 76 | 67.2 | 82 | 43.8 | 54 | 2.73 | 16 | 0 |
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| 2017 | 57.6 | 58 | 71.6 | 62 | 43.6 | 56 | 1.64 | 37 | 0 |
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| 2016 | 59.3 | 39 | 74 | 45 | 44.5 | 41 | 1.00 | 54 | 0 |
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| 2015 | 62.5 | 11 | 76.7 | 20 | 48.3 | 8 | 0.92 | 58 | 0 |
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| 2014 | 57.4 | 61 | 71.9 | 55 | 42.9 | 65 | 3.36 | 7 | 0 |
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| 2013 | 60.9 | 31 | 74.6 | 42 | 47.1 | 15 | 4.35 | 4 | 0 |
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| 2012 | 59.3 | 39 | 76.2 | 29 | 42.4 | 71 | 0.14 | 82 | 0 |
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| 2011 | 61 | 30 | 76.5 | 27 | 45.6 | 31 | 1.98 | 27 | 0 |
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| 2010 | 60.2 | 36 | 76 | 31 | 44.4 | 44 | 1.65 | 35 | 0 |
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| 2009 | 56.1 | 72 | 69.6 | 71 | 42.6 | 67 | 3.06 | 13 | 0 |
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| 2008 | 57.4 | 61 | 72.7 | 51 | 42.1 | 76 | 1.28 | 47 | 0 |
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| 2007 | 61.4 | 22 | 76.6 | 24 | 46.3 | 24 | 1.02 | 52 | 0 |
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| 2006 | 57.4 | 61 | 70.3 | 69 | 44.5 | 41 | 2.01 | 26 | 0 |
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| 2005 | 61.4 | 22 | 76.6 | 24 | 46.3 | 24 | 1.35 | 44 | 0 |
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| 2004 | 60.8 | 32 | 75 | 35 | 46.7 | 21 | 2.05 | 24 | 0 |
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| 2003 | 59.5 | 38 | 75.6 | 34 | 43.5 | 58 | 1.76 | 31 | 0 |
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| 2002 | 58.4 | 49 | 71.7 | 60 | 45.2 | 36 | 2.86 | 15 | 0 |
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| 2001 | 59.7 | 37 | 74.6 | 42 | 44.7 | 40 | 1.48 | 40 | 0 |
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| 2000 | 58.2 | 51 | 74 | 45 | 42.5 | 68 | 0.74 | 67 | 0 |
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| 1999 | 54.2 | 82 | 69 | 74 | 39.4 | 85 | 0.91 | 59 | 0 |
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| 1998 | 62.4 | 13 | 76.2 | 29 | 48.7 | 5 | 3.74 | 6 | 0 |
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| 1997 | 61.6 | 20 | 77 | 17 | 46.3 | 24 | 1.12 | 50 | 0 |
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| 1996 | 58.4 | 49 | 71.3 | 63 | 45.4 | 34 | 1.60 | 38 | 0 |
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| 1995 | 57.1 | 66 | 71.8 | 59 | 42.4 | 71 | 2.04 | 25 | 0 |
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| 1994 | 62.2 | 15 | 75.9 | 33 | 48.6 | 7 | 1.39 | 43 | 0 |
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| 1993 | 55.1 | 79 | 69.1 | 73 | 41.1 | 81 | 1.82 | 29 | 0 |
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| 1992 | 60.3 | 35 | 76.7 | 20 | 44 | 52 | 0.64 | 71 | 0 |
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| 1991 | 59.2 | 43 | 74.8 | 41 | 43.5 | 58 | 1.02 | 52 | 0 |
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| 1990 | 62 | 18 | 76.9 | 18 | 47.1 | 15 | 2.53 | 18 | 0 |
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| 1989 | 58.6 | 46 | 72.8 | 49 | 44.4 | 44 | 3.31 | 8 | 0 |
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| 1988 | 57.9 | 55 | 72.5 | 53 | 43.2 | 61 | 0.56 | 72 | 0 |
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| 1987 | 58.6 | 46 | 74.9 | 38 | 42.3 | 73 | 0.76 | 66 | 0 |
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| 1986 | 53.3 | 83 | 63.2 | 85 | 43.4 | 60 | 4.64 | 3 | 0 |
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| 1985 | 52.4 | 84 | 64.7 | 83 | 39.8 | 83 | 1.69 | 33 | 1 |
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| 1984 | 57.5 | 60 | 70.9 | 65 | 44 | 52 | 1.34 | 46 | 0 |
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| 1983 | 58.6 | 46 | 72.7 | 51 | 44.5 | 41 | 1.42 | 42 | 0 |
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| 1982 | 55.5 | 76 | 67.3 | 81 | 43.8 | 54 | 6.27 | 1 | 0 |
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| 1981 | 61.1 | 27 | 76.3 | 28 | 46 | 29 | 0.81 | 63 | 0 |
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| 1980 | 61.4 | 22 | 76.8 | 19 | 46 | 29 | 0.48 | 75 | 0 |
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| 1979 | 63.5 | 6 | 79.9 | 5 | 47 | 18 | 0.07 | 83 | 0 |
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| 1978 | 63 | 8 | 79 | 7 | 46.9 | 19 | 0.18 | 81 | 0 |
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| 1977 | 56.9 | 68 | 69.5 | 72 | 44.3 | 48 | 3.83 | 5 | 0 |
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| 1976 | 60.7 | 33 | 76.7 | 20 | 44.8 | 38 | 0.46 | 76 | 0 |
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| 1975 | 58.8 | 45 | 75 | 35 | 42.5 | 68 | 0.03 | 85 | 0 |
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| 1974 | 56.4 | 69 | 71.7 | 60 | 40.7 | 82 | 1.35 | 44 | 1 |
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| 1973 | 55.9 | 74 | 68.6 | 75 | 43.2 | 61 | 2.58 | 17 | 0 |
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| 1972 | 58.2 | 51 | 74.9 | 38 | 41.4 | 79 | 0.95 | 56 | 0 |
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| 1971 | 56.3 | 70 | 69.8 | 70 | 42.9 | 65 | 2.94 | 14 | 0 |
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| 1970 | 56.2 | 71 | 70.8 | 67 | 41.7 | 78 | 1.87 | 28 | 0 |
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| 1969 | 61.1 | 27 | 76.7 | 20 | 45.5 | 32 | 0.72 | 68 | 0 |
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| 1968 | 57.4 | 61 | 72.8 | 49 | 41.9 | 77 | 0.89 | 61 | 0 |
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| 1967 | 61.6 | 20 | 74.9 | 38 | 48.2 | 10 | 2.19 | 21 | 0 |
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| 1966 | 59.1 | 44 | 72.9 | 48 | 45.4 | 34 | 3.27 | 9 | 0 |
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| 1965 | 51.8 | 85 | 63.9 | 84 | 39.7 | 84 | 1.46 | 41 | 0 |
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| 1964 | 57.1 | 66 | 71.9 | 55 | 42.3 | 73 | 0.69 | 69 | 0 |
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| 1963 | 66.9 | 2 | 80.7 | 2 | 53 | 1 | 1.21 | 48 | 0 |
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| 1962 | 59.3 | 39 | 73.1 | 47 | 45.5 | 32 | 2.28 | 20 | 0 |
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| 1961 | 54.7 | 81 | 67.9 | 77 | 41.4 | 79 | 0.99 | 55 | 0 |
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| 1960 | 62.7 | 10 | 77.2 | 16 | 48.3 | 8 | 0.68 | 70 | 0 |
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| 1959 | 55 | 80 | 67.8 | 79 | 42.3 | 73 | 2.52 | 19 | 0 |
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| 1958 | 61.4 | 22 | 76.6 | 24 | 46.3 | 24 | 0.06 | 84 | 0 |
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| 1957 | 57.9 | 55 | 71.1 | 64 | 44.8 | 38 | 0.93 | 57 | 0 |
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| 1956 | 62 | 18 | 77.3 | 13 | 46.7 | 21 | 0.30 | 79 | 0 |
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| 1955 | 61.1 | 27 | 75 | 35 | 47.2 | 13 | 3.24 | 10 | 0 |
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| 1954 | 60.6 | 34 | 74.2 | 44 | 47.1 | 15 | 0.55 | 74 | 0 |
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| 1953 | 62.3 | 14 | 78.3 | 8 | 46.2 | 28 | 0.39 | 77 | 0 |
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| 1952 | 62.5 | 11 | 77.9 | 10 | 47.2 | 13 | 0.21 | 80 | 0 |
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| 1951 | 55.5 | 76 | 67.9 | 77 | 43.1 | 63 | 2.08 | 23 | 0 |
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| 1950 | 56 | 73 | 67.5 | 80 | 44.4 | 44 | 3.19 | 12 | 0 |
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| 1949 | 58.1 | 53 | 71.9 | 55 | 44.4 | 44 | 1.75 | 32 | 0 |
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| 1948 | 63.2 | 7 | 77.6 | 11 | 48.7 | 5 | 0.82 | 62 | 0 |
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| 1947 | 62.1 | 16 | 77.4 | 12 | 46.7 | 21 | 0.56 | 72 | 0 |
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| 1946 | 55.8 | 75 | 68.6 | 75 | 43 | 64 | 5.51 | 2 | 0 |
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| 1945 | 57.6 | 58 | 70.9 | 65 | 44.3 | 48 | 2.12 | 22 | 0 |
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| 1944 | 57.9 | 55 | 72.1 | 54 | 43.6 | 56 | 0.81 | 63 | 0 |
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| 1943 | 61.2 | 26 | 77.3 | 13 | 45.2 | 36 | 0.32 | 78 | 0 |
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| 1942 | 58 | 54 | 71.9 | 55 | 44.1 | 50 | 1.78 | 30 | 0 |
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