Every 1 September to 9 October in Carbondale, IL from 1899 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 |
|---|
| 2026 | 74.8 | 3 | 87.3 | 3 | 62.2 | 6 | | | 0 |
|---|
| 2025 | 71.1 | 20 | 85 | 17 | 57.2 | 33 | 2.78 | 81 | 0 |
|---|
| 2024 | 69.1 | 44 | 81.8 | 49 | 56.4 | 39 | | | 2 |
|---|
| 2023 | 68.8 | 46 | 81.8 | 49 | 55.7 | 48 | 1.46 | 100 | 1 |
|---|
| 2022 | 65.4 | 89 | 80.8 | 63 | 49.9 | 106 | 0.69 | 112 | 0 |
|---|
| 2021 | 70.6 | 26 | 82.6 | 40 | 58.7 | 21 | 7.46 | 14 | 0 |
|---|
| 2020 | 66 | 85 | 78.3 | 93 | 53.7 | 70 | 3.01 | 74 | 0 |
|---|
| 2019 | 73.5 | 6 | 87.2 | 4 | 59.9 | 12 | 0.75 | 110 | 0 |
|---|
| 2018 | 72.8 | 9 | 83.1 | 31 | 62.4 | 5 | 5.74 | 26 | 0 |
|---|
| 2017 | 69.8 | 35 | 82.3 | 44 | 57.3 | 30 | 2.64 | 83 | 0 |
|---|
| 2016 | 69.6 | 37 | 81 | 59 | 58.1 | 25 | 3.94 | 52 | 0 |
|---|
| 2015 | 68.3 | 54 | 79.8 | 76 | 56.9 | 36 | 3.03 | 72 | 0 |
|---|
| 2014 | 65.4 | 89 | 78.5 | 89 | 52.2 | 83 | 2.81 | 80 | 0 |
|---|
| 2013 | 69.3 | 40 | 81.6 | 53 | 57.1 | 35 | 2.84 | 77 | 0 |
|---|
| 2012 | 64.4 | 99 | 75.6 | 112 | 53.2 | 75 | 5.02 | 38 | 0 |
|---|
| 2011 | 65.2 | 92 | 77 | 102 | 53.4 | 74 | 6.08 | 25 | 0 |
|---|
| 2010 | 66.6 | 78 | 80.9 | 61 | 52.2 | 83 | 1.57 | 98 | 0 |
|---|
| 2009 | 66.4 | 81 | 77 | 102 | 55.9 | 44 | 7.86 | 13 | 0 |
|---|
| 2008 | 66.8 | 73 | 79 | 86 | 54.6 | 61 | 4.39 | 45 | 0 |
|---|
| 2007 | 72.2 | 13 | 85.6 | 15 | 58.9 | 18 | 2.25 | 89 | 0 |
|---|
| 2006 | 64.1 | 102 | 76.8 | 104 | 51.4 | 94 | 3.52 | 61 | 0 |
|---|
| 2005 | 70.5 | 27 | 83.1 | 31 | 58 | 26 | 3.48 | 62 | 1 |
|---|
| 2004 | 67.2 | 65 | 82.2 | 46 | 52.2 | 83 | 0.67 | 113 | 0 |
|---|
| 2003 | 62.8 | 113 | 75.5 | 113 | 50.2 | 102 | 2.91 | 75 | 0 |
|---|
| 2002 | 69.6 | 37 | 82.9 | 36 | 56.3 | 40 | 2.84 | 77 | 1 |
|---|
| 2001 | 63.8 | 107 | 77.3 | 99 | 50.2 | 102 | 2.60 | 84 | 0 |
|---|
| 2000 | 64.8 | 94 | 77.8 | 97 | 51.9 | 87 | 3.04 | 71 | 0 |
|---|
| 1999 | 65.3 | 91 | 82.3 | 44 | 48.3 | 112 | 3.59 | 60 | 0 |
|---|
| 1998 | 71 | 22 | 83.4 | 26 | 58.6 | 23 | 3.81 | 54 | 0 |
|---|
| 1997 | 67.8 | 57 | 80 | 74 | 55.6 | 49 | 4.40 | 44 | 0 |
|---|
| 1996 | 64.1 | 102 | 76.5 | 106 | 51.8 | 90 | 5.67 | 28 | 1 |
|---|
| 1995 | 64 | 104 | 77.5 | 98 | 50.4 | 100 | 1.86 | 93 | 2 |
|---|
| 1994 | | | 77.2 | 100 | | | 3.60 | 59 | 4 |
|---|
| 1993 | 63.7 | 109 | 74.8 | 114 | 52.5 | 80 | 10.96 | 2 | 0 |
|---|
| 1992 | 64 | 104 | 76 | 110 | 52.1 | 86 | 6.28 | 22 | 0 |
|---|
| 1991 | 65.8 | 88 | 80.8 | 63 | 51.2 | 99 | 4.27 | 46 | 2 |
|---|
| 1990 | 68.4 | 51 | 81.6 | 53 | 55.1 | 56 | 5.21 | 32 | 0 |
|---|
| 1989 | 63.7 | 109 | 76.4 | 107 | 50.4 | 100 | 2.16 | 91 | 2 |
|---|
| 1988 | 64.8 | 94 | 78 | 95 | 51.3 | 96 | 8.68 | 8 | 2 |
|---|
| 1987 | 63.9 | 106 | 80.1 | 73 | 48.1 | 114 | 1.76 | 95 | 3 |
|---|
| 1986 | | | | | | | | | 10 |
|---|
| 1985 | | | | | | | | | 11 |
|---|
| 1983 | 67.3 | 64 | 83.2 | 27 | 51.6 | 93 | 3.21 | 66 | 1 |
|---|
| 1982 | 66.2 | 84 | 78.8 | 88 | 53.2 | 75 | 4.53 | 43 | 2 |
|---|
| 1981 | 63.6 | 111 | 77.9 | 96 | 49.3 | 107 | 0.94 | 106 | 0 |
|---|
| 1980 | 67.6 | 60 | 81.7 | 51 | 53.5 | 71 | 3.96 | 50 | 0 |
|---|
| 1979 | 63.8 | 107 | 78.9 | 87 | 48.7 | 109 | 1.71 | 97 | 0 |
|---|
| 1978 | 66.7 | 76 | 80.7 | 66 | 52.6 | 79 | 0.85 | 107 | 0 |
|---|
| 1977 | 67.9 | 56 | 79.6 | 77 | 56.3 | 40 | 5.18 | 33 | 0 |
|---|
| 1976 | 63.6 | 111 | 79.3 | 81 | 47.8 | 115 | 1.72 | 96 | 0 |
|---|
| 1975 | 61.9 | 114 | 74.7 | 115 | 49 | 108 | 3.22 | 65 | 0 |
|---|
| 1974 | 60.1 | 115 | 71.8 | 116 | 48.5 | 110 | 5.02 | 38 | 0 |
|---|
| 1973 | 69.9 | 34 | 81 | 59 | 58.9 | 18 | 2.37 | 87 | 0 |
|---|
| 1972 | 70.2 | 30 | 80.4 | 70 | 59.8 | 13 | 3.65 | 56 | 1 |
|---|
| 1971 | 71.1 | 20 | 81.9 | 47 | 60.2 | 10 | 1.99 | 92 | 0 |
|---|
| 1970 | 72.1 | 14 | 83.2 | 27 | 61.1 | 8 | 4.94 | 40 | 0 |
|---|
| 1969 | 68.9 | 45 | 81.3 | 57 | 56.6 | 38 | 7.13 | 15 | 0 |
|---|
| 1968 | 66.8 | 73 | 79.5 | 78 | 54.1 | 66 | 3.45 | 63 | 0 |
|---|
| 1967 | 67.2 | 65 | 79.4 | 80 | 55.1 | 56 | 5.42 | 31 | 0 |
|---|
| 1966 | 64.6 | 97 | 76.3 | 109 | 52.9 | 78 | 5.04 | 36 | 0 |
|---|
| 1965 | 67.7 | 58 | 79.3 | 81 | 56.2 | 42 | 9.63 | 6 | 0 |
|---|
| 1964 | 67.1 | 68 | 80.8 | 63 | 53.5 | 71 | 3.31 | 64 | 0 |
|---|
| 1963 | 68.4 | 51 | 85 | 17 | 51.7 | 91 | 0.47 | 114 | 0 |
|---|
| 1962 | 67.1 | 68 | 78.3 | 93 | 55.9 | 44 | 4.93 | 41 | 0 |
|---|
| 1961 | 69.3 | 40 | 83 | 34 | 55.6 | 49 | 1.05 | 105 | 0 |
|---|
| 1960 | 71.4 | 16 | 85.6 | 15 | 57.3 | 30 | 1.09 | 103 | 0 |
|---|
| 1959 | 70.1 | 32 | 82.9 | 36 | 57.3 | 30 | 6.54 | 19 | 0 |
|---|
| 1958 | 67 | 71 | 79.2 | 83 | 54.7 | 59 | 2.33 | 88 | 0 |
|---|
| 1957 | 67.2 | 65 | 80.5 | 68 | 53.8 | 69 | 2.51 | 86 | 0 |
|---|
| 1956 | 67.7 | 58 | 82.9 | 36 | 52.5 | 80 | 2.60 | 84 | 0 |
|---|
| 1955 | 70.5 | 27 | 85.9 | 14 | 55 | 58 | 3.09 | 68 | 0 |
|---|
| 1954 | 70.9 | 24 | 86.6 | 8 | 55.5 | 51 | 6.16 | 23 | 3 |
|---|
| 1953 | 69.3 | 40 | 87.2 | 4 | 51.3 | 96 | 2.22 | 90 | 0 |
|---|
| 1952 | 64.6 | 97 | 80.9 | 61 | 48.2 | 113 | 3.95 | 51 | 0 |
|---|
| 1951 | 66.6 | 78 | 79.2 | 83 | 53.9 | 68 | 6.90 | 16 | 0 |
|---|
| 1950 | 66 | 85 | 76 | 110 | 56.1 | 43 | 4.89 | 42 | 0 |
|---|
| 1949 | 64.8 | 94 | 77.2 | 100 | 52.3 | 82 | 10.08 | 4 | 0 |
|---|
| 1948 | | | | | | | | | 23 |
|---|
| 1947 | 68.8 | 46 | 82.4 | 42 | 55.3 | 54 | 4.17 | 48 | 2 |
|---|
| 1946 | 68.4 | 51 | 81.5 | 55 | 55.3 | 54 | 3.02 | 73 | 0 |
|---|
| 1945 | 68 | 55 | 78.4 | 92 | 57.6 | 28 | 9.91 | 5 | 2 |
|---|
| 1944 | 69.7 | 36 | 80 | 74 | 59.4 | 14 | 2.84 | 77 | 0 |
|---|
| 1943 | 65.1 | 93 | 76.6 | 105 | 53.5 | 71 | 5.61 | 29 | 0 |
|---|
| 1942 | 68.8 | 46 | 80.3 | 72 | 57.2 | 33 | 1.31 | 101 | 0 |
|---|
| 1941 | 73 | 8 | 84.6 | 20 | 61.5 | 7 | 5.51 | 30 | 0 |
|---|
| 1940 | 67.6 | 60 | 86.7 | 7 | 48.5 | 110 | 0.74 | 111 | 0 |
|---|
| 1939 | 74.5 | 5 | 91.5 | 1 | 57.6 | 28 | 0.80 | 108 | 0 |
|---|
| 1938 | 71 | 22 | 86.1 | 13 | 55.9 | 44 | 1.57 | 98 | 0 |
|---|
| 1937 | 68.6 | 49 | 81.2 | 58 | 55.9 | 44 | 5.18 | 33 | 0 |
|---|
| 1936 | 73.3 | 7 | 84 | 23 | 62.6 | 3 | 10.34 | 3 | 0 |
|---|
| 1935 | 66 | 85 | 80.6 | 67 | 51.3 | 96 | 3.63 | 58 | 0 |
|---|
| 1934 | 66.3 | 83 | 78.5 | 89 | 54.1 | 66 | 6.57 | 18 | 0 |
|---|
| 1933 | 71.6 | 15 | 83.2 | 27 | 60 | 11 | 2.86 | 76 | 0 |
|---|
| 1932 | 66.9 | 72 | 79.2 | 83 | 54.5 | 63 | 6.43 | 20 | 0 |
|---|
| 1931 | 75.1 | 2 | 87.7 | 2 | 62.5 | 4 | 6.62 | 17 | 0 |
|---|
| 1930 | 70.9 | 24 | 83.2 | 27 | 58.7 | 21 | 8.28 | 9 | 0 |
|---|
| 1929 | 67.1 | 68 | 79.5 | 78 | 54.7 | 59 | 6.42 | 21 | 0 |
|---|
| 1928 | 66.7 | 76 | 81.7 | 51 | 51.7 | 91 | 2.78 | 81 | 0 |
|---|
| 1927 | 72.8 | 9 | 86.6 | 8 | 59 | 16 | 7.98 | 12 | 0 |
|---|
| 1926 | 72.7 | 12 | 84.3 | 22 | 61.1 | 8 | 4.16 | 49 | 0 |
|---|
| 1925 | 74.8 | 3 | 86.2 | 12 | 63.5 | 2 | 8.27 | 10 | 0 |
|---|
| 1924 | 66.8 | 73 | 80.5 | 68 | 53.1 | 77 | 3.88 | 53 | 0 |
|---|
| 1923 | 67.4 | 62 | 80.4 | 70 | 54.3 | 65 | 4.21 | 47 | 0 |
|---|
| 1922 | 71.3 | 18 | 87.2 | 4 | 55.5 | 51 | 3.79 | 55 | 0 |
|---|
| 1921 | 71.2 | 19 | 83.1 | 31 | 59.4 | 14 | 9.24 | 7 | 0 |
|---|
| 1920 | 69.5 | 39 | 84.5 | 21 | 54.5 | 63 | 1.81 | 94 | 0 |
|---|
| 1919 | 72.8 | 9 | 86.6 | 8 | 59 | 16 | 6.15 | 24 | 0 |
|---|
| 1918 | 64.3 | 100 | 78.5 | 89 | 50.1 | 104 | 5.04 | 36 | 0 |
|---|
| 1917 | 66.4 | 81 | 81.4 | 56 | 51.4 | 94 | 1.23 | 102 | 0 |
|---|
| 1916 | 68.5 | 50 | 82.4 | 42 | 54.6 | 61 | 3.07 | 69 | 0 |
|---|
| 1915 | 69.3 | 40 | 81.9 | 47 | 56.7 | 37 | 3.65 | 56 | 0 |
|---|
| 1914 | 70.5 | 27 | 82.7 | 39 | 58.3 | 24 | 5.15 | 35 | 0 |
|---|
| 1913 | 70.1 | 32 | 82.5 | 41 | 57.7 | 27 | 3.12 | 67 | 0 |
|---|
| 1912 | 70.2 | 30 | 85 | 17 | 55.5 | 51 | 5.71 | 27 | 0 |
|---|
| 1911 | 75.8 | 1 | 86.5 | 11 | 65 | 1 | 8.18 | 11 | 0 |
|---|
| 1910 | 71.4 | 16 | 84 | 23 | 58.8 | 20 | 15.34 | 1 | 0 |
|---|
| 1904 | | | | | | | | | 16 |
|---|
| 1903 | | | | | | | | | 18 |
|---|
| 1902 | 64.2 | 101 | 76.4 | 107 | 51.9 | 87 | 3.07 | 69 | 0 |
|---|
| 1901 | 67.4 | 62 | 83 | 34 | 51.9 | 87 | 0.79 | 109 | 1 |
|---|
| 1900 | | | | | | | | | 14 |
|---|
| 1899 | 66.5 | 80 | 83.5 | 25 | 50.1 | 104 | 1.07 | 104 | 1 |
|---|