Every June in McCook, NE from 1896 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 | 72.8 | 35 | 85.3 | 50 | 60.2 | 23 | 2.14 | 68 | 0 |
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| 2025 | 74 | 24 | 87.4 | 33 | 60.7 | 18 | 2.62 | 59 | 0 |
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| 2024 | | | 88.5 | 26 | | | 1.23 | 83 | 4 |
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| 2023 | 70.7 | 53 | 83.1 | 69 | 58.4 | 41 | 2.71 | 58 | 0 |
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| 2022 | 75.5 | 13 | 90.2 | 15 | 60.7 | 18 | 1.85 | 73 | 0 |
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| 2021 | 75.1 | 15 | 88.9 | 24 | 61.3 | 12 | 1.70 | 76 | 0 |
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| 2020 | 76.6 | 10 | 91.6 | 11 | 61.6 | 11 | 1.46 | 79 | 0 |
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| 2019 | 70.1 | 62 | 84.1 | 57 | 56.1 | 66 | 2.89 | 52 | 0 |
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| 2018 | 75.1 | 15 | 88.9 | 24 | 61.3 | 12 | 4.91 | 14 | 0 |
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| 2017 | 74.8 | 20 | 90.2 | 15 | 59.4 | 33 | 0.27 | 100 | 0 |
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| 2016 | 75 | 18 | 89.6 | 19 | 60.3 | 21 | 2.85 | 53 | 0 |
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| 2015 | 73.6 | 29 | 86.7 | 39 | 60.4 | 20 | 4.52 | 20 | 0 |
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| 2014 | 71.1 | 47 | 83.8 | 59 | 58.3 | 43 | 8.05 | 2 | 0 |
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| 2013 | 73.7 | 28 | 89.9 | 17 | 57.5 | 53 | 1.10 | 90 | 0 |
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| 2012 | 78.6 | 3 | 95.4 | 2 | 61.7 | 9 | 0.53 | 96 | 0 |
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| 2011 | 71.8 | 42 | 85.9 | 44 | 57.7 | 52 | 1.07 | 92 | 0 |
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| 2010 | 73.2 | 31 | 85.5 | 47 | 60.8 | 17 | 4.95 | 13 | 0 |
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| 2009 | 69.8 | 66 | 81.5 | 79 | 58.1 | 46 | 3.97 | 33 | 0 |
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| 2008 | 70.3 | 59 | 84.1 | 57 | 56.5 | 64 | 1.76 | 74 | 0 |
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| 2007 | 70.8 | 52 | 83.6 | 63 | 58 | 48 | 1.19 | 85 | 0 |
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| 2006 | 74.8 | 20 | 89.4 | 20 | 60.1 | 26 | 3.04 | 45 | 0 |
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| 2005 | 71.7 | 44 | 83.8 | 59 | 59.6 | 31 | 6.60 | 4 | 0 |
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| 2004 | 68.5 | 76 | 81.9 | 75 | 55.1 | 76 | 4.52 | 20 | 0 |
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| 2003 | 69.3 | 71 | 81.7 | 77 | 56.9 | 61 | 4.33 | 24 | 0 |
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| 2002 | 79.9 | 2 | 95.3 | 3 | 64.6 | 2 | 2.44 | 64 | 0 |
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| 2001 | 73.8 | 26 | 88.4 | 27 | 59.3 | 34 | 1.33 | 82 | 2 |
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| 2000 | 71.8 | 42 | 88 | 28 | 55.7 | 70 | 1.98 | 70 | 1 |
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| 1999 | 69 | 74 | 80.9 | 84 | 57.2 | 56 | 4.81 | 15 | 0 |
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| 1998 | 70.5 | 56 | 85.6 | 45 | 55.4 | 71 | 0.88 | 93 | 1 |
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| 1997 | 72.1 | 40 | 86.1 | 42 | 58 | 48 | | | 0 |
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| 1996 | 71.5 | 45 | 83.6 | 63 | 59.3 | 34 | 5.38 | 9 | 0 |
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| 1995 | 68.7 | 75 | 80.7 | 85 | 56.6 | 63 | 2.16 | 67 | 0 |
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| 1994 | 74.8 | 20 | 87.8 | 30 | 62.2 | 8 | 2.78 | 55 | 2 |
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| 1993 | 68.2 | 79 | 81.3 | 81 | 55.1 | 76 | 3.64 | 39 | 0 |
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| 1992 | 66.6 | 84 | 77.2 | 89 | 55.9 | 68 | 2.62 | 59 | 0 |
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| 1991 | 74 | 24 | 85.5 | 47 | 62.4 | 7 | 2.97 | 47 | 0 |
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| 1990 | 73.8 | 26 | 87.9 | 29 | 59.6 | 31 | 0.51 | 97 | 0 |
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| 1967 | 69.3 | 71 | 81.4 | 80 | 57.2 | 56 | 4.59 | 19 | 0 |
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| 1966 | 72.9 | 34 | 86.9 | 36 | 58.8 | 38 | 3.34 | 42 | 0 |
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| 1965 | 70.6 | 55 | 82.4 | 73 | 58.7 | 39 | 4.70 | 17 | 1 |
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| 1964 | 71.9 | 41 | 86.8 | 37 | 57 | 59 | 2.39 | 65 | 0 |
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| 1963 | 78.4 | 5 | 93.6 | 5 | 63.2 | 4 | 1.16 | 88 | 0 |
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| 1962 | 70.3 | 59 | 82.5 | 72 | 58 | 48 | 6.52 | 5 | 0 |
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| 1961 | 72.3 | 38 | 87.5 | 32 | 57 | 59 | 3.03 | 46 | 0 |
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| 1960 | 70.4 | 57 | 84.9 | 51 | 55.8 | 69 | 3.94 | 35 | 0 |
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| 1959 | 75.7 | 12 | 91.1 | 13 | 60.2 | 23 | 4.21 | 30 | 0 |
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| 1958 | 72.4 | 36 | 85.5 | 47 | 59.2 | 36 | 2.49 | 63 | 0 |
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| 1957 | 69.4 | 69 | 83.6 | 63 | 55.2 | 72 | 4.71 | 16 | 0 |
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| 1956 | 77.2 | 7 | 92.6 | 7 | 61.7 | 9 | 1.92 | 71 | 0 |
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| 1955 | 68.3 | 77 | 81.6 | 78 | 54.9 | 78 | 3.09 | 44 | 0 |
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| 1954 | | | 92.1 | 10 | | | 0.36 | 99 | 9 |
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| 1953 | 77.1 | 8 | 91.3 | 12 | 62.9 | 5 | 1.43 | 80 | 0 |
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| 1952 | 78.5 | 4 | 93.3 | 6 | 63.6 | 3 | 1.19 | 85 | 0 |
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| 1951 | 65.1 | 87 | 76.9 | 91 | 53.2 | 84 | 3.98 | 32 | 1 |
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| 1950 | 73.1 | 33 | 89 | 22 | 57.1 | 58 | 1.17 | 87 | 0 |
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| 1949 | 72.3 | 38 | 84.4 | 56 | 60.2 | 23 | 4.26 | 27 | 0 |
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| 1948 | 70.1 | 62 | 82.6 | 71 | 57.5 | 53 | 6.86 | 3 | 0 |
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| 1947 | 65.8 | 85 | 81.1 | 83 | 50.4 | 88 | 4.22 | 29 | 1 |
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| 1946 | 70.7 | 53 | 86.3 | 41 | 55.2 | 72 | 2.94 | 50 | 0 |
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| 1945 | 62.9 | 89 | 74.5 | 93 | 51.3 | 87 | 4.30 | 26 | 0 |
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| 1944 | 70.9 | 50 | 83.7 | 61 | 58.4 | 41 | 2.75 | 57 | 1 |
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| 1943 | 70.2 | 61 | 83.6 | 63 | 56.8 | 62 | 2.97 | 47 | 0 |
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| 1942 | 70 | 64 | 82.1 | 74 | 57.8 | 51 | 5.38 | 9 | 0 |
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| 1941 | 68.2 | 79 | 81.2 | 82 | 55.2 | 72 | 6.35 | 6 | 0 |
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| 1940 | 73.4 | 30 | 86.8 | 37 | 60.1 | 26 | 2.14 | 68 | 1 |
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| 1939 | 73.2 | 31 | 87.7 | 31 | 59 | 37 | | | 1 |
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| 1938 | 72.4 | 36 | 84.6 | 53 | 59.8 | 30 | 1.08 | 91 | 1 |
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| 1937 | 71 | 48 | 83.7 | 61 | 58.3 | 43 | 3.65 | 38 | 0 |
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| 1936 | 76.8 | 9 | 89.9 | 17 | 62.8 | 6 | 1.50 | 77 | 2 |
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| 1935 | 69.4 | 69 | 80.3 | 86 | 58.5 | 40 | 2.91 | 51 | 0 |
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| 1934 | 74.2 | 23 | 87.4 | 33 | 61 | 14 | 5.19 | 11 | 0 |
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| 1933 | 81.6 | 1 | 98 | 1 | 65.2 | 1 | | | 0 |
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| 1932 | 69.7 | 68 | 84.6 | 53 | 55.2 | 72 | 3.76 | 36 | 1 |
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| 1931 | 75.2 | 14 | 90.3 | 14 | 60 | 28 | | | 0 |
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| 1930 | 67.9 | 81 | 85.6 | 45 | 50.2 | 89 | | | 0 |
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| 1929 | 69.3 | 71 | 86.1 | 42 | 52.4 | 86 | 4.42 | 22 | 0 |
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| 1928 | 63.4 | 88 | 76.6 | 92 | 50.2 | 89 | 4.68 | 18 | 0 |
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| 1927 | 68.3 | 77 | 83.1 | 69 | 53.4 | 82 | 6.27 | 7 | 2 |
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| 1926 | 69.8 | 66 | 86.4 | 40 | 53.2 | 84 | 1.23 | 83 | 0 |
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| 1925 | | | 92.2 | 9 | | | 2.51 | 62 | 30 |
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| 1924 | 69.9 | 65 | 83.6 | 63 | 56.2 | 65 | 0.18 | 101 | 0 |
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| 1923 | | | | | | | 4.37 | 23 | 30 |
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| 1922 | 75.1 | 15 | 89.2 | 21 | 60.9 | 16 | 3.13 | 43 | 0 |
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| 1920 | 70.9 | 50 | 83.6 | 63 | 58.1 | 46 | 1.76 | 74 | 0 |
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| 1919 | 71.4 | 46 | 84.6 | 53 | 58.2 | 45 | 3.45 | 41 | 0 |
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| 1918 | 76.1 | 11 | 92.5 | 8 | 60.3 | 21 | 0.75 | 94 | 2 |
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| 1917 | 71 | 48 | 87.4 | 33 | 54.5 | 79 | 1.34 | 81 | 1 |
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| 1916 | 67.2 | 83 | 80.3 | 86 | 54 | 80 | 4.25 | 28 | 0 |
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| 1915 | 65.3 | 86 | 77.1 | 90 | 53.4 | 82 | 8.55 | 1 | 0 |
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| 1914 | 75 | 18 | 89 | 22 | 61 | 14 | 4.02 | 31 | 0 |
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| 1912 | 67.3 | 82 | 80.2 | 88 | 53.6 | 81 | 2.77 | 56 | 1 |
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| 1911 | 77.4 | 6 | 95 | 4 | 59.9 | 29 | 0.66 | 95 | 3 |
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| 1910 | 70.4 | 57 | 84.7 | 52 | 56.1 | 66 | 1.12 | 89 | 1 |
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| 1909 | | | 81.9 | 75 | 57.5 | 53 | 3.95 | 34 | 4 |
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| 1908 | | | | | | | 2.95 | 49 | 30 |
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| 1907 | | | | | | | 5.01 | 12 | 30 |
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| 1906 | | | | | | | 1.87 | 72 | 30 |
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| 1905 | | | | | | | 1.50 | 77 | 30 |
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| 1904 | | | | | | | 4.31 | 25 | 30 |
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| 1903 | | | | | | | 0.40 | 98 | 30 |
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| 1902 | | | | | | | 2.82 | 54 | 30 |
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| 1900 | | | | | | | 2.55 | 61 | 30 |
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| 1899 | | | | | | | 2.28 | 66 | 30 |
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| 1898 | | | | | | | 3.70 | 37 | 30 |
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| 1897 | | | | | | | 5.63 | 8 | 30 |
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| 1896 | | | | | | | 3.61 | 40 | 30 |
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