Every April 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 | 54.1 | 20 | 70.4 | 15 | 37.8 | 31 | 0.66 | 79 | 0 |
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| 2025 | 52.8 | 29 | 68.7 | 26 | 36.8 | 45 | 0.23 | 94 | 0 |
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| 2024 | | | 70.1 | 17 | | | 2.75 | 21 | 4 |
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| 2023 | 50.9 | 50 | 67.8 | 34 | 34 | 78 | 0.20 | 95 | 0 |
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| 2022 | 51 | 48 | 68 | 32 | 34 | 78 | 0.15 | 99 | 0 |
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| 2021 | 49.6 | 63 | 65.4 | 53 | 33.7 | 83 | 0.58 | 82 | 0 |
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| 2020 | 49.3 | 66 | 66.7 | 40 | 31.9 | 90 | 0.09 | 100 | 0 |
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| 2019 | 52.2 | 35 | 67.8 | 34 | 36.6 | 48 | 0.24 | 92 | 0 |
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| 2018 | 45.2 | 89 | 60.7 | 81 | 29.7 | 94 | 1.02 | 68 | 0 |
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| 2017 | 52.7 | 31 | 66 | 45 | 39.3 | 20 | 1.76 | 45 | 0 |
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| 2016 | 51.4 | 45 | 64.9 | 57 | 37.8 | 31 | 6.10 | 2 | 0 |
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| 2015 | 54.1 | 20 | 68.2 | 30 | 40 | 14 | 1.95 | 41 | 0 |
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| 2014 | 51.4 | 45 | 65.6 | 51 | 37.1 | 42 | 1.11 | 67 | 0 |
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| 2013 | 45.9 | 87 | 60.4 | 85 | 31.4 | 92 | 1.73 | 46 | 0 |
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| 2012 | 55.4 | 12 | 68.9 | 25 | 41.8 | 6 | 2.18 | 36 | 0 |
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| 2011 | 50.4 | 56 | 64.3 | 62 | 36.6 | 48 | 1.79 | 44 | 0 |
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| 2010 | 52.9 | 28 | 66.1 | 43 | 39.7 | 15 | 2.46 | 28 | 0 |
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| 2009 | 49.4 | 64 | 62.9 | 73 | 36 | 58 | 2.64 | 23 | 0 |
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| 2008 | 47.9 | 80 | 62 | 77 | 33.9 | 80 | 2.54 | 26 | 0 |
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| 2007 | 48.6 | 73 | 60.6 | 83 | 36.6 | 48 | 6.08 | 3 | 0 |
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| 2006 | 55.6 | 11 | 72.2 | 9 | 39 | 23 | 0.68 | 78 | 0 |
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| 2005 | 51.3 | 47 | 64.8 | 58 | 37.7 | 35 | 0.89 | 72 | 0 |
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| 2004 | 51.5 | 43 | 67.1 | 38 | 36.1 | 57 | 1.88 | 43 | 1 |
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| 2003 | 52.6 | 32 | 66 | 45 | 39.3 | 20 | 2.59 | 24 | 0 |
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| 2002 | 54.6 | 18 | 70.2 | 16 | 39 | 23 | 1.30 | 65 | 0 |
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| 2001 | 54.9 | 15 | 68.6 | 29 | 41.2 | 9 | 2.21 | 34 | 0 |
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| 2000 | 51.9 | 38 | 69 | 23 | 34.9 | 70 | 1.38 | 64 | 0 |
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| 1999 | 48.1 | 78 | 59.5 | 86 | 36.6 | 48 | 3.00 | 18 | 0 |
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| 1998 | 49.4 | 64 | 64 | 66 | 34.9 | 70 | 0.42 | 88 | 0 |
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| 1997 | 45.4 | 88 | 58.8 | 90 | 32 | 88 | | | 0 |
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| 1996 | 50.4 | 56 | 66.4 | 42 | 34.3 | 77 | 1.13 | 66 | 1 |
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| 1995 | 46.2 | 85 | 59.3 | 89 | 33 | 84 | 2.80 | 20 | 1 |
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| 1994 | 50.5 | 53 | 65 | 55 | 36 | 58 | 2.87 | 19 | 0 |
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| 1993 | 47.2 | 83 | 58.3 | 91 | 35.9 | 60 | 1.45 | 58 | 3 |
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| 1992 | 51.6 | 41 | 65.3 | 54 | 38 | 30 | 0.44 | 87 | 0 |
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| 1991 | 51.5 | 43 | 63.6 | 71 | 39.4 | 19 | 3.30 | 13 | 0 |
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| 1990 | 50.1 | 58 | 63.9 | 68 | 37 | 44 | 1.53 | 55 | 2 |
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| 1967 | 55.2 | 14 | 71 | 13 | 39.5 | 17 | 0.81 | 75 | 0 |
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| 1966 | 49.7 | 62 | 64.1 | 64 | 35.3 | 66 | 0.72 | 77 | 1 |
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| 1965 | 57.9 | 2 | 73.8 | 4 | 41.9 | 5 | 0.16 | 98 | 0 |
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| 1964 | 52.3 | 34 | 66.1 | 43 | 38.4 | 26 | 2.53 | 27 | 0 |
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| 1963 | 56.8 | 6 | 72.3 | 8 | 41.3 | 8 | 1.39 | 63 | 0 |
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| 1962 | 54.5 | 19 | 71.2 | 12 | 37.7 | 35 | 0.19 | 96 | 0 |
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| 1961 | 47.3 | 82 | 62.6 | 75 | 32 | 88 | 0.30 | 89 | 0 |
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| 1960 | 55.8 | 9 | 72.4 | 7 | 39.2 | 22 | 1.40 | 61 | 1 |
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| 1959 | 52.6 | 32 | 69.4 | 21 | 35.7 | 62 | 1.65 | 49 | 0 |
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| 1958 | 49.2 | 67 | 61.2 | 80 | 37.2 | 41 | 2.05 | 38 | 0 |
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| 1957 | 49.1 | 69 | 60.7 | 81 | 37.4 | 39 | 3.01 | 17 | 2 |
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| 1956 | 48.6 | 73 | 64.8 | 58 | 32.3 | 87 | 1.57 | 52 | 0 |
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| 1955 | 57.3 | 4 | 73.6 | 5 | 41 | 10 | 0.92 | 70 | 1 |
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| 1954 | 57.1 | 5 | 76.6 | 1 | 37.5 | 38 | 0.45 | 86 | 0 |
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| 1953 | 48.1 | 78 | 62.4 | 76 | 33.8 | 81 | 2.73 | 22 | 0 |
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| 1952 | 50.5 | 53 | 64.2 | 63 | 36.7 | 47 | 3.72 | 10 | 0 |
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| 1951 | 49.2 | 67 | 63.7 | 70 | 34.7 | 75 | 3.06 | 16 | 0 |
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| 1950 | 48.8 | 70 | 63.8 | 69 | 33.8 | 81 | 0.65 | 80 | 0 |
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| 1949 | 52.2 | 35 | 65.8 | 48 | 38.6 | 25 | 1.60 | 51 | 0 |
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| 1948 | 58.1 | 1 | 73.1 | 6 | 42.5 | 3 | 0.24 | 92 | 1 |
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| 1947 | 48.8 | 70 | 61.9 | 79 | 35.6 | 63 | 2.21 | 34 | 0 |
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| 1946 | 57.8 | 3 | 74.1 | 3 | 41.4 | 7 | 0.17 | 97 | 0 |
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| 1945 | 47.4 | 81 | 59.4 | 87 | 35.4 | 64 | 2.23 | 33 | 0 |
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| 1944 | 44.8 | 90 | 55.4 | 94 | 35.4 | 64 | 8.22 | 1 | 3 |
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| 1943 | 55.3 | 13 | 69.6 | 20 | 41 | 10 | 1.95 | 41 | 0 |
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| 1942 | 56 | 8 | 70.1 | 17 | 42 | 4 | 3.52 | 11 | 0 |
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| 1941 | 50.9 | 50 | 64 | 66 | 37.1 | 42 | 3.94 | 9 | 3 |
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| 1940 | 51.9 | 38 | 65.7 | 50 | 38.1 | 28 | 0.29 | 90 | 3 |
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| 1939 | 53.7 | 24 | 68.2 | 30 | 39.6 | 16 | 2.45 | 29 | 1 |
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| 1938 | 53.8 | 22 | 67.3 | 36 | 40.1 | 13 | 2.31 | 31 | 1 |
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| 1937 | 51 | 48 | 65.8 | 48 | 36.2 | 56 | 0.61 | 81 | 0 |
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| 1936 | 51.6 | 41 | 67.3 | 36 | 35.9 | 60 | 1.02 | 68 | 0 |
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| 1935 | 47.1 | 84 | 59.4 | 87 | 35.1 | 68 | 1.45 | 58 | 1 |
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| 1934 | 53.8 | 22 | 69.4 | 21 | 38.1 | 28 | 1.46 | 57 | 0 |
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| 1933 | 54.8 | 16 | 71.8 | 10 | 37.8 | 31 | | | 0 |
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| 1932 | 53.5 | 26 | 68.7 | 26 | 38.3 | 27 | 1.71 | 47 | 0 |
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| 1931 | 52.2 | 35 | 68 | 32 | 36.5 | 53 | 1.51 | 56 | 0 |
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| 1930 | 54.7 | 17 | 71.5 | 11 | 37.8 | 31 | 4.43 | 7 | 0 |
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| 1929 | 52.8 | 29 | 69 | 23 | 36.5 | 53 | 1.66 | 48 | 0 |
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| 1928 | 48.3 | 75 | 64.1 | 64 | 32.5 | 86 | 0.28 | 91 | 0 |
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| 1927 | 53.7 | 24 | 66.9 | 39 | 39.5 | 17 | 4.81 | 5 | 3 |
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| 1926 | 48.2 | 77 | 63.6 | 71 | 32.9 | 85 | 0.51 | 84 | 1 |
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| 1925 | 55.7 | 10 | 70.9 | 14 | 40.4 | 12 | 1.96 | 40 | 1 |
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| 1924 | 50.9 | 50 | 65 | 55 | 36.6 | 48 | 0.00 | 102 | 3 |
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| 1923 | 48.3 | 75 | 60.6 | 83 | 35.3 | 66 | 2.13 | 37 | 1 |
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| 1922 | 51.7 | 40 | 66.6 | 41 | 36.8 | 45 | | | 0 |
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| 1920 | 44.3 | 91 | 56.9 | 92 | 31.7 | 91 | 4.48 | 6 | 0 |
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| 1919 | 49.9 | 60 | 62 | 77 | 37.7 | 35 | 2.26 | 32 | 0 |
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| 1918 | 46 | 86 | 56.7 | 93 | 34.9 | 70 | 1.65 | 49 | 1 |
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| 1917 | 48.8 | 70 | 62.9 | 73 | 34.8 | 73 | 1.44 | 60 | 0 |
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| 1916 | 49.8 | 61 | 64.7 | 60 | 34.8 | 73 | 0.54 | 83 | 0 |
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| 1915 | 56.3 | 7 | 69.7 | 19 | 42.8 | 2 | 4.21 | 8 | 0 |
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| 1914 | 53.1 | 27 | 68.7 | 26 | 37.4 | 39 | 1.55 | 54 | 0 |
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| 1912 | 50 | 59 | 65.6 | 51 | 34.5 | 76 | 2.01 | 39 | 0 |
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| 1911 | 50.5 | 53 | 64.7 | 60 | 36.4 | 55 | | | 1 |
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| 1910 | | | 75.4 | 2 | 35 | 69 | 0.76 | 76 | 4 |
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| 1909 | | | | | 30.9 | 93 | 1.57 | 52 | 4 |
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| 1908 | | | | | | | 0.50 | 85 | 30 |
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| 1907 | | | | | | | 1.40 | 61 | 30 |
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| 1906 | | | | | | | 2.44 | 30 | 30 |
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| 1905 | | | | | | | 3.28 | 14 | 30 |
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| 1904 | | | | | | | 0.85 | 74 | 30 |
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| 1903 | | | | | | | 0.90 | 71 | 30 |
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| 1902 | | | | | | | 0.86 | 73 | 30 |
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| 1900 | | | | | | | 3.37 | 12 | 30 |
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| 1899 | | | | | | | 0.05 | 101 | 30 |
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| 1898 | | | | | | | 2.55 | 25 | 30 |
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| 1897 | | | | | | | 3.27 | 15 | 30 |
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| 1896 | | | 66 | 45 | 44.4 | 1 | 4.96 | 4 | 6 |
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