Every 1 to 10 October in Allentown, PA from 1912 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 | 59.4 | 34 | 71.6 | 31 | 47.1 | 44 | trace | 107 | 0 |
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| 2025 | 59.6 | 33 | 73.6 | 14 | 45.6 | 56 | 0.38 | 76 | 0 |
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| 2024 | 59.4 | 34 | 69.7 | 42 | 49 | 31 | 0.01 | 105 | 0 |
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| 2023 | 61.2 | 22 | 73 | 18 | 49.4 | 27 | 0.31 | 82 | 0 |
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| 2022 | 52.7 | 88 | 61.6 | 98 | 43.7 | 71 | 2.94 | 8 | 0 |
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| 2021 | 63 | 12 | 71.7 | 28 | 54.3 | 6 | 0.25 | 90 | 0 |
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| 2020 | 56 | 64 | 68.6 | 49 | 43.3 | 74 | 0.08 | 101 | 0 |
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| 2019 | 62.3 | 16 | 71.7 | 28 | 52.9 | 9 | 0.97 | 47 | 0 |
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| 2018 | 69.2 | 3 | 77.6 | 5 | 60.7 | 2 | 0.36 | 78 | 0 |
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| 2017 | 66.9 | 5 | 78.5 | 2 | 55.2 | 5 | 0.76 | 57 | 0 |
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| 2016 | 59.2 | 37 | 68.9 | 47 | 49.4 | 27 | 0.26 | 88 | 0 |
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| 2015 | 56.8 | 55 | 66.1 | 68 | 47.5 | 39 | 1.32 | 31 | 0 |
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| 2014 | 58.2 | 44 | 68.8 | 48 | 47.5 | 39 | 0.44 | 75 | 0 |
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| 2013 | 63.7 | 9 | 74.7 | 9 | 52.7 | 10 | 1.90 | 22 | 0 |
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| 2012 | 56.8 | 55 | 65.2 | 76 | 48.4 | 33 | 2.29 | 14 | 0 |
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| 2011 | 57.4 | 50 | 69.7 | 42 | 45 | 61 | 0.61 | 66 | 0 |
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| 2010 | 55.4 | 67 | 65.3 | 75 | 45.5 | 57 | 3.52 | 3 | 0 |
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| 2009 | 55 | 69 | 65.2 | 76 | 44.8 | 63 | 0.66 | 64 | 0 |
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| 2008 | 54.1 | 80 | 65.5 | 73 | 42.7 | 78 | 0.12 | 100 | 0 |
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| 2007 | 70 | 1 | 82.1 | 1 | 57.8 | 4 | 0.73 | 59 | 0 |
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| 2006 | 58.9 | 38 | 70.4 | 38 | 47.4 | 42 | 0.78 | 55 | 0 |
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| 2005 | 64.4 | 8 | 74.7 | 9 | 54.1 | 7 | 9.69 | 1 | 0 |
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| 2004 | 56.2 | 62 | 68.5 | 52 | 43.9 | 70 | trace | 107 | 0 |
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| 2003 | 51.3 | 95 | 62.3 | 96 | 40.2 | 96 | 0.19 | 94 | 0 |
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| 2002 | 62.2 | 18 | 72.9 | 19 | 51.4 | 19 | 1.45 | 29 | 0 |
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| 2001 | 54.5 | 73 | 68.6 | 49 | 40.4 | 94 | 0.19 | 94 | 0 |
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| 2000 | 52.9 | 86 | 64.2 | 85 | 41.6 | 85 | 0.31 | 82 | 0 |
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| 1999 | 54 | 81 | 64.8 | 82 | 43.1 | 76 | 1.67 | 25 | 0 |
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| 1998 | 54.8 | 70 | 62.8 | 93 | 46.7 | 47 | 4.32 | 2 | 0 |
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| 1997 | 61.3 | 21 | 74.4 | 11 | 48.2 | 34 | 0.03 | 103 | 0 |
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| 1996 | 50.7 | 97 | 61.6 | 98 | 39.8 | 98 | 2.52 | 11 | 0 |
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| 1995 | 62.4 | 14 | 73.4 | 15 | 51.3 | 20 | 2.83 | 9 | 0 |
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| 1994 | 53.7 | 82 | 64.9 | 78 | 42.5 | 82 | 0.55 | 67 | 0 |
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| 1993 | 54.4 | 75 | 67.1 | 65 | 41.6 | 85 | 0.25 | 90 | 0 |
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| 1992 | 54.4 | 75 | 67.2 | 64 | 41.6 | 85 | 1.00 | 44 | 0 |
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| 1991 | 60.1 | 27 | 71.9 | 24 | 48.2 | 34 | 0.48 | 73 | 0 |
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| 1990 | 63 | 12 | 75.2 | 8 | 50.7 | 22 | 0.34 | 80 | 0 |
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| 1989 | 53.1 | 85 | 62.9 | 91 | 43.2 | 75 | 0.73 | 59 | 0 |
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| 1988 | 53.2 | 84 | 62.9 | 91 | 43.4 | 72 | 0.50 | 70 | 0 |
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| 1987 | 51.2 | 96 | 62.8 | 93 | 39.5 | 99 | 1.10 | 40 | 0 |
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| 1986 | 59.7 | 30 | 70 | 41 | 49.4 | 27 | 0.72 | 61 | 0 |
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| 1985 | 56.7 | 58 | 66.8 | 67 | 46.6 | 48 | 0.88 | 49 | 0 |
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| 1984 | 54.8 | 70 | 64.3 | 84 | 45.3 | 59 | 0.87 | 51 | 0 |
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| 1983 | 61.9 | 20 | 73.3 | 16 | 50.5 | 24 | 0.45 | 74 | 0 |
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| 1982 | 63.1 | 11 | 74.1 | 13 | 52.1 | 16 | 0.01 | 105 | 0 |
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| 1981 | 52.4 | 90 | 60.3 | 103 | 44.4 | 68 | 0.72 | 61 | 0 |
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| 1980 | 58 | 46 | 67.8 | 57 | 48.1 | 37 | 0.72 | 61 | 0 |
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| 1979 | 56.9 | 53 | 64 | 87 | 49.8 | 25 | 3.14 | 5 | 0 |
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| 1978 | 55.7 | 66 | 64.9 | 78 | 46.5 | 51 | 1.13 | 39 | 0 |
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| 1977 | 56 | 64 | 64.9 | 78 | 47 | 45 | 1.56 | 28 | 0 |
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| 1976 | 59.7 | 30 | 67.1 | 65 | 52.3 | 15 | 2.21 | 15 | 0 |
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| 1975 | 56.5 | 59 | 67.6 | 59 | 45.4 | 58 | 0.13 | 98 | 0 |
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| 1974 | 50.4 | 100 | 62.7 | 95 | 38.1 | 102 | trace | 107 | 0 |
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| 1973 | 62 | 19 | 72.8 | 20 | 51.2 | 21 | 0.36 | 78 | 0 |
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| 1972 | 54.3 | 77 | 65.9 | 71 | 42.7 | 78 | 1.41 | 30 | 0 |
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| 1971 | 60.5 | 24 | 68.5 | 52 | 52.4 | 14 | 2.21 | 15 | 0 |
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| 1970 | 58.8 | 40 | 71.4 | 34 | 46.2 | 53 | 0.27 | 87 | 0 |
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| 1969 | 58.4 | 41 | 70.2 | 39 | 46.6 | 48 | 1.23 | 33 | 0 |
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| 1968 | 56.8 | 55 | 68.5 | 52 | 45 | 61 | 1.02 | 43 | 0 |
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| 1967 | 58.1 | 45 | 70.2 | 39 | 46 | 55 | 0.77 | 56 | 0 |
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| 1966 | 52.7 | 88 | 64.9 | 78 | 40.4 | 94 | 1.26 | 32 | 0 |
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| 1965 | 51.4 | 94 | 61.3 | 100 | 41.5 | 88 | 3.01 | 6 | 0 |
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| 1964 | 50.2 | 102 | 61.2 | 101 | 39.1 | 100 | 0.90 | 48 | 0 |
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| 1963 | 57.7 | 47 | 71.9 | 24 | 43.4 | 72 | 0.02 | 104 | 0 |
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| 1962 | 59.7 | 30 | 68.6 | 49 | 50.7 | 22 | 1.67 | 25 | 0 |
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| 1961 | 58.9 | 38 | 71.5 | 32 | 46.2 | 53 | 0.21 | 92 | 0 |
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| 1960 | 54.3 | 77 | 67.6 | 59 | 41 | 91 | 0.04 | 102 | 0 |
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| 1959 | 69.9 | 2 | 77.8 | 4 | 62 | 1 | 2.05 | 19 | 0 |
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| 1958 | 54.6 | 72 | 67.4 | 62 | 41.8 | 84 | 0.74 | 58 | 0 |
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| 1957 | 57.5 | 49 | 67.6 | 59 | 47.3 | 43 | 0.99 | 46 | 0 |
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| 1956 | 52.9 | 86 | 64.2 | 85 | 41.5 | 88 | 0.62 | 65 | 0 |
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| 1955 | 59.9 | 29 | 71.8 | 27 | 48 | 38 | 2.05 | 19 | 0 |
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| 1954 | 62.4 | 14 | 72.2 | 22 | 52.5 | 13 | 0.53 | 69 | 0 |
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| 1953 | 54.5 | 73 | 67.7 | 58 | 41.2 | 90 | 0.37 | 77 | 0 |
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| 1952 | 53.4 | 83 | 64.7 | 83 | 42.1 | 83 | 0.85 | 52 | 0 |
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| 1951 | 60.5 | 24 | 71.5 | 32 | 49.4 | 27 | 2.36 | 12 | 0 |
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| 1950 | 59.4 | 34 | 71.2 | 35 | 47.5 | 39 | 0.88 | 49 | 0 |
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| 1949 | 63.5 | 10 | 74.3 | 12 | 52.6 | 12 | 0.28 | 85 | 0 |
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| 1948 | 56.4 | 61 | 66.1 | 68 | 46.6 | 48 | 0.54 | 68 | 0 |
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| 1947 | 56.9 | 53 | 71.1 | 36 | 42.7 | 78 | 0.00 | 111 | 0 |
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| 1946 | 58.4 | 41 | 72.5 | 21 | 44.3 | 69 | 0.20 | 93 | 0 |
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| 1945 | 51.9 | 93 | 63.1 | 90 | 40.7 | 93 | 2.01 | 21 | 0 |
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| 1944 | 57.7 | 47 | 68.3 | 55 | 47 | 45 | 0.13 | 98 | 0 |
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| 1943 | 56.5 | 59 | 68.2 | 56 | 44.7 | 65 | 1.19 | 35 | 0 |
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| 1942 | 57 | 52 | 69.5 | 44 | 44.5 | 66 | 0.29 | 84 | 0 |
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| 1941 | 67.6 | 4 | 77.1 | 7 | 58 | 3 | 0.84 | 53 | 0 |
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| 1940 | 56.2 | 62 | 66 | 70 | 46.4 | 52 | 1.14 | 37 | 0 |
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| 1939 | 62.3 | 16 | 71.9 | 24 | 52.7 | 10 | 1.81 | 24 | 1 |
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| 1938 | 50.7 | 97 | 63.8 | 88 | 37.6 | 103 | 1.00 | 44 | 0 |
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| 1937 | | | | | 48.2 | 34 | 0.15 | 96 | 2 |
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| 1936 | 60 | 28 | 70.5 | 37 | 49.5 | 26 | 2.36 | 12 | 0 |
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| 1935 | 50.5 | 99 | 63.7 | 89 | 37.3 | 104 | 0.33 | 81 | 0 |
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| 1934 | 55.3 | 68 | 65.4 | 74 | 45.2 | 60 | 1.14 | 37 | 0 |
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| 1933 | 57.1 | 51 | 69.3 | 45 | 44.8 | 63 | 0.50 | 70 | 0 |
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| 1932 | 60.7 | 23 | 73.3 | 16 | 48.6 | 32 | 3.20 | 4 | 1 |
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| 1931 | 65.2 | 7 | 78.3 | 3 | 51.6 | 17 | 1.05 | 42 | 1 |
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| 1930 | 54.2 | 79 | 67.4 | 62 | 40.9 | 92 | 0.00 | 111 | 0 |
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| 1929 | 50.4 | 100 | 61.9 | 97 | 40.1 | 97 | 2.98 | 7 | 1 |
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| 1928 | | | 71.7 | 28 | 42.7 | 78 | 0.28 | 85 | 2 |
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| 1927 | 66.2 | 6 | 77.6 | 5 | 53.9 | 8 | 2.17 | 17 | 1 |
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| 1926 | 60.4 | 26 | 69.2 | 46 | 51.5 | 18 | 1.09 | 41 | 0 |
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| 1925 | 52.4 | 90 | 60.8 | 102 | 43 | 77 | 2.09 | 18 | 1 |
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| 1924 | 58.4 | 41 | 72.2 | 22 | 44.5 | 66 | 1.66 | 27 | 1 |
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| 1923 | 52.1 | 92 | 65.6 | 72 | 39 | 101 | 0.00 | 111 | 1 |
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| 1922 | | | | | | | 1.16 | 36 | 10 |
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| 1919 | | | | | | | 1.89 | 23 | 10 |
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| 1918 | | | | | | | 0.50 | 70 | 10 |
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| 1917 | | | | | | | 0.26 | 88 | 10 |
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| 1916 | | | | | | | trace | 107 | 10 |
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| 1915 | | | | | | | 1.22 | 34 | 10 |
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| 1914 | | | | | | | 0.15 | 96 | 10 |
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| 1913 | | | | | | | 2.70 | 10 | 10 |
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| 1912 | | | | | | | 0.83 | 54 | 10 |
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