Every 1 September to 10 October in McCook, NE from 1895 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 | 70.2 | 2 | 82 | 32 | 58.4 | 1 | 5.33 | 7 | 1 |
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| 2025 | 67.2 | 23 | 80.7 | 43 | 53.7 | 9 | 6.87 | 2 | 0 |
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| 2024 | 69.3 | 5 | 86.4 | 5 | 52.2 | 18 | 0.61 | 91 | 0 |
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| 2023 | 67.6 | 18 | 83.7 | 15 | 51.7 | 26 | 3.77 | 19 | 2 |
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| 2022 | 67.6 | 18 | 84.5 | 10 | 50.7 | 38 | 2.07 | 37 | 0 |
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| 2021 | 69 | 8 | 86.2 | 6 | 51.9 | 24 | 3.24 | 24 | 0 |
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| 2020 | 64.4 | 51 | 82.3 | 28 | 46.5 | 75 | 0.84 | 83 | 0 |
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| 2019 | 67.7 | 17 | 81.7 | 34 | 53.7 | 9 | 1.20 | 70 | 0 |
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| 2018 | 63.8 | 54 | 75.7 | 80 | 52 | 22 | 2.33 | 33 | 0 |
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| 2017 | 65.6 | 38 | 79.4 | 52 | 51.7 | 26 | 4.13 | 15 | 0 |
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| 2016 | 65.1 | 40 | 79.9 | 45 | 50.4 | 41 | 5.63 | 5 | 0 |
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| 2015 | 69.8 | 4 | 84 | 12 | 55.7 | 2 | 1.35 | 64 | 0 |
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| 2014 | 63.2 | 57 | 77.2 | 67 | 49.1 | 50 | 1.86 | 42 | 0 |
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| 2013 | 68.3 | 11 | 82.8 | 19 | 53.8 | 8 | 2.71 | 28 | 0 |
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| 2012 | 61.5 | 73 | 79.6 | 50 | 43.4 | 90 | 0.58 | 94 | 0 |
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| 2011 | 62.5 | 68 | 78.4 | 57 | 46.7 | 72 | 1.56 | 54 | 0 |
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| 2010 | 65.7 | 37 | 82.5 | 23 | 48.9 | 54 | 0.77 | 85 | 0 |
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| 2009 | 58.7 | 88 | 71.5 | 92 | 46 | 80 | 2.44 | 31 | 0 |
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| 2008 | 63.1 | 61 | 77.5 | 64 | 48.7 | 56 | 1.39 | 63 | 0 |
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| 2007 | 66.7 | 29 | 82 | 32 | 51.4 | 30 | 1.62 | 51 | 0 |
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| 2006 | 61.5 | 73 | 75.1 | 82 | 47.9 | 64 | 3.77 | 19 | 0 |
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| 2005 | 67.2 | 23 | 82.5 | 23 | 51.9 | 24 | 1.46 | 62 | 0 |
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| 2004 | 66.1 | 32 | 80.8 | 42 | 51.3 | 31 | 4.91 | 8 | 0 |
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| 2003 | 63 | 62 | 79 | 53 | 46.9 | 70 | 1.17 | 72 | 1 |
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| 2002 | 65.2 | 39 | 78.7 | 55 | 51.7 | 26 | 2.69 | 29 | 0 |
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| 2001 | 66.1 | 32 | 81.2 | 38 | 51 | 35 | 3.44 | 23 | 0 |
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| 2000 | 63.3 | 55 | 79.5 | 51 | 47.1 | 68 | 1.67 | 49 | 0 |
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| 1999 | 60.9 | 80 | 75.7 | 80 | 46.1 | 79 | 0.59 | 92 | 0 |
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| 1998 | 67.3 | 22 | 82.4 | 27 | 52.2 | 18 | 1.53 | 56 | 0 |
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| 1997 | 68.3 | 11 | 82.7 | 20 | 53.9 | 6 | | | 0 |
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| 1996 | 60.5 | 81 | 72 | 91 | 49 | 53 | 4.41 | 13 | 0 |
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| 1995 | 61.3 | 77 | 73.7 | 87 | 48.2 | 61 | 2.94 | 27 | 1 |
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| 1994 | 64.5 | 48 | 78 | 60 | 51 | 35 | 1.51 | 58 | 1 |
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| 1993 | 59.4 | 87 | 73.2 | 89 | 45.8 | 81 | 1.83 | 44 | 1 |
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| 1992 | 62.7 | 66 | 76.9 | 71 | 48.5 | 58 | 1.18 | 71 | 0 |
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| 1991 | 63.2 | 57 | 77.5 | 64 | 48.9 | 54 | 1.28 | 68 | 0 |
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| 1990 | 66.4 | 30 | 79.7 | 47 | 52.2 | 18 | 1.50 | 59 | 3 |
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| 1989 | | | | | | | | | 15 |
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| 1967 | | | | | | | | | 28 |
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| 1966 | 64.9 | 42 | 81.5 | 36 | 48.4 | 59 | 1.91 | 39 | 0 |
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| 1965 | 59.8 | 86 | 73.8 | 85 | 45.8 | 81 | 4.63 | 11 | 0 |
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| 1964 | 65.8 | 35 | 82.5 | 23 | 49.1 | 50 | 1.09 | 74 | 0 |
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| 1963 | 71.3 | 1 | 87 | 3 | 55.6 | 3 | 4.78 | 9 | 0 |
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| 1962 | 64.5 | 48 | 79.7 | 47 | 49.4 | 48 | 1.53 | 56 | 0 |
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| 1961 | 61.4 | 75 | 78.5 | 56 | 44.4 | 88 | 2.15 | 34 | 0 |
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| 1960 | 69.2 | 6 | 88.3 | 1 | 50 | 42 | 0.57 | 95 | 0 |
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| 1959 | 61.3 | 77 | 76.4 | 76 | 46.2 | 77 | 3.49 | 21 | 0 |
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| 1958 | 68.2 | 13 | 85.5 | 8 | 50.9 | 37 | 0.98 | 78 | 3 |
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| 1957 | 64.5 | 48 | 79.8 | 46 | 49.1 | 50 | 2.14 | 35 | 1 |
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| 1956 | 67.9 | 14 | 87.2 | 2 | 48.6 | 57 | 0.20 | 100 | 0 |
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| 1955 | 66.4 | 30 | 83.1 | 18 | 49.6 | 46 | 3.80 | 18 | 0 |
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| 1954 | | | 86.8 | 4 | | | 1.26 | 69 | 19 |
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| 1953 | 66.9 | 25 | 83.4 | 16 | 50.5 | 40 | 0.10 | 102 | 1 |
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| 1952 | 64.7 | 45 | 79.7 | 47 | 48.3 | 60 | 0.26 | 98 | 3 |
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| 1951 | 60.1 | 84 | 73.4 | 88 | 46.7 | 72 | 3.92 | 17 | 0 |
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| 1950 | 62.8 | 64 | 74.6 | 83 | 49.6 | 46 | 1.49 | 60 | 4 |
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| 1949 | 63.3 | 55 | 76.6 | 74 | 49.9 | 44 | 1.32 | 66 | 0 |
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| 1948 | 66.9 | 25 | 82.6 | 22 | 51.1 | 34 | 0.97 | 79 | 0 |
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| 1947 | 68.4 | 10 | 84 | 12 | 52.8 | 12 | 1.88 | 41 | 1 |
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| 1946 | 60.4 | 82 | 74.3 | 84 | 46.7 | 72 | 9.72 | 1 | 1 |
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| 1945 | 63.2 | 57 | 78.4 | 57 | 48.1 | 63 | 1.61 | 52 | 0 |
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| 1944 | 62.1 | 70 | 76.4 | 76 | 47 | 69 | 0.70 | 87 | 3 |
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| 1943 | 61.4 | 75 | 77.3 | 66 | 45.6 | 84 | 0.75 | 86 | 0 |
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| 1942 | 61.6 | 72 | 77.2 | 67 | 45.7 | 83 | 4.69 | 10 | 1 |
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| 1941 | 63.2 | 57 | 76.3 | 78 | 49.9 | 44 | 5.93 | 3 | 1 |
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| 1940 | 65 | 41 | 78 | 60 | 52 | 22 | | | 0 |
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| 1939 | 67.9 | 14 | 83.4 | 16 | 52.5 | 17 | 0.27 | 97 | 1 |
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| 1938 | 69 | 8 | 83.8 | 14 | 54.3 | 5 | 1.54 | 55 | 3 |
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| 1937 | 67.4 | 20 | 80.9 | 41 | 53.9 | 6 | 0.97 | 79 | 0 |
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| 1936 | | | 81.1 | 39 | 52.8 | 12 | 1.31 | 67 | 7 |
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| 1935 | 63 | 62 | 77.6 | 63 | 48.2 | 61 | 1.76 | 47 | 2 |
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| 1934 | 62 | 71 | 76.7 | 73 | 47.2 | 67 | 1.90 | 40 | 1 |
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| 1933 | 65.9 | 34 | 80.7 | 43 | 50.6 | 39 | | | 4 |
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| 1932 | 62.3 | 69 | 77.7 | 62 | 46.8 | 71 | 1.33 | 65 | 1 |
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| 1931 | 70.2 | 2 | 85.8 | 7 | 54.5 | 4 | 0.59 | 92 | 2 |
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| 1930 | 65.8 | 35 | 81.6 | 35 | 50 | 42 | 5.38 | 6 | 1 |
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| 1929 | 58.7 | 88 | 72.8 | 90 | 44.9 | 86 | 2.58 | 30 | 1 |
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| 1928 | 64.9 | 42 | 85.3 | 9 | 44.7 | 87 | 1.00 | 77 | 1 |
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| 1927 | 64.6 | 46 | 81.5 | 36 | 47.8 | 65 | 1.49 | 60 | 0 |
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| 1926 | 62.8 | 64 | 76.3 | 78 | 49.3 | 49 | 3.45 | 22 | 0 |
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| 1925 | 64.6 | 46 | 78.1 | 59 | 51.2 | 33 | 1.85 | 43 | 0 |
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| 1924 | 60 | 85 | 73.8 | 85 | 46.2 | 77 | 2.36 | 32 | 0 |
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| 1923 | 64.3 | 52 | 77.1 | 69 | 51.6 | 29 | 5.93 | 3 | 0 |
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| 1922 | 67.4 | 20 | 82.3 | 28 | 52.7 | 15 | 0.24 | 99 | 1 |
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| 1921 | | | | | | | | | 19 |
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| 1920 | 69.1 | 7 | 84.2 | 11 | 52.8 | 12 | 1.02 | 76 | 3 |
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| 1919 | 67.9 | 14 | 82.3 | 28 | 53.5 | 11 | 0.97 | 79 | 0 |
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| 1918 | 62.7 | 66 | 78.8 | 54 | 46.5 | 75 | 1.60 | 53 | 0 |
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| 1917 | | | | | | | | | 11 |
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| 1916 | 64.3 | 52 | 81.1 | 39 | 47.6 | 66 | 0.82 | 84 | 0 |
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| 1915 | 64.9 | 42 | 77 | 70 | 52.7 | 15 | 1.12 | 73 | 0 |
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| 1914 | 66.8 | 27 | 82.2 | 31 | 51.3 | 31 | 0.63 | 90 | 0 |
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| 1913 | 61.2 | 79 | 76.9 | 71 | 45.1 | 85 | 1.82 | 45 | 2 |
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| 1912 | 60.2 | 83 | 76.5 | 75 | 43.9 | 89 | 2.13 | 36 | 4 |
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| 1911 | 66.8 | 27 | 82.5 | 23 | 52.2 | 18 | 0.65 | 88 | 3 |
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| 1910 | | | 82.7 | 20 | | | 0.89 | 82 | 10 |
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| 1909 | | | | | | | | | 10 |
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| 1908 | | | | | | | 0.48 | 96 | 40 |
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| 1907 | | | | | | | 1.63 | 50 | 40 |
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| 1906 | | | | | | | 1.80 | 46 | 40 |
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| 1905 | | | | | | | 3.20 | 26 | 40 |
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| 1904 | | | | | | | 1.97 | 38 | 40 |
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| 1902 | | | | | | | 4.37 | 14 | 40 |
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| 1901 | | | | | | | 4.53 | 12 | 40 |
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| 1900 | | | | | | | 0.64 | 89 | 40 |
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| 1899 | | | | | | | 0.20 | 100 | 40 |
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| 1898 | | | | | | | 3.95 | 16 | 40 |
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| 1897 | | | | | | | 1.04 | 75 | 40 |
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| 1896 | | | | | | | 1.68 | 48 | 40 |
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| 1895 | | | | | | | 3.22 | 25 | 40 |
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