Every December in Bridgeport, CT from 1948 to 2025, 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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| 2025 | 32.2 | 66 | 39.5 | 60 | 25 | 67 | 3.27 | 47 | 0 |
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| 2024 | 35.7 | 38 | 42.7 | 36 | 28.7 | 40 | 5.43 | 14 | 0 |
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| 2023 | 40.9 | 5 | 47.6 | 5 | 34.1 | 2 | 8.35 | 1 | 0 |
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| 2022 | 36.1 | 31 | 43.5 | 30 | 28.6 | 42 | 4.14 | 32 | 0 |
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| 2021 | 40.4 | 6 | 46.6 | 9 | 34.1 | 2 | 1.73 | 68 | 0 |
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| 2020 | 37.3 | 26 | 44.4 | 24 | 30.2 | 25 | 4.12 | 33 | 0 |
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| 2019 | 36.1 | 31 | 42.5 | 40 | 29.8 | 28 | 7.35 | 4 | 0 |
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| 2018 | 37.7 | 21 | 44.5 | 22 | 30.9 | 19 | 5.98 | 8 | 0 |
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| 2017 | 33.4 | 56 | 39.4 | 62 | 27.4 | 54 | 1.69 | 69 | 0 |
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| 2016 | 37.8 | 19 | 44.9 | 18 | 30.6 | 23 | 3.43 | 44 | 0 |
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| 2015 | 47.2 | 1 | 53.6 | 1 | 40.7 | 1 | 4.94 | 17 | 0 |
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| 2014 | 39 | 12 | 44.9 | 18 | 33.2 | 8 | 5.65 | 12 | 0 |
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| 2013 | 35 | 46 | 41.5 | 48 | 28.6 | 42 | 4.33 | 26 | 0 |
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| 2012 | 39.6 | 9 | 45.8 | 13 | 33.4 | 6 | 4.32 | 27 | 0 |
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| 2011 | 41.1 | 3 | 49.2 | 2 | 33 | 10 | 3.70 | 40 | 0 |
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| 2010 | 31.3 | 68 | 37.5 | 69 | 25.1 | 65 | 4.09 | 34 | 0 |
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| 2009 | 33.3 | 57 | 40.5 | 52 | 26 | 61 | 5.75 | 11 | 0 |
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| 2008 | 35.4 | 45 | 43 | 33 | 27.9 | 47 | 5.84 | 10 | 0 |
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| 2007 | 35.7 | 38 | 42.5 | 40 | 28.9 | 38 | 4.40 | 25 | 0 |
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| 2006 | 41 | 4 | 48.1 | 4 | 34 | 5 | 2.66 | 56 | 0 |
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| 2005 | 33.3 | 57 | 39.5 | 60 | 27 | 56 | 3.70 | 40 | 0 |
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| 2004 | 36.4 | 29 | 44.2 | 27 | 28.7 | 40 | 3.11 | 51 | 0 |
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| 2003 | 35 | 46 | 41.9 | 46 | 28.2 | 45 | 3.82 | 38 | 0 |
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| 2002 | 33.7 | 54 | 39.9 | 58 | 27.5 | 51 | 4.19 | 31 | 0 |
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| 2001 | 41.4 | 2 | 48.6 | 3 | 34.1 | 2 | 2.03 | 65 | 0 |
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| 2000 | 29.6 | 72 | 36.6 | 73 | 22.6 | 71 | 2.75 | 54 | 0 |
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| 1999 | 37.7 | 21 | 44.5 | 22 | 30.9 | 19 | 2.39 | 60 | 0 |
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| 1998 | 39.2 | 10 | 47.1 | 7 | 31.4 | 15 | 1.05 | 75 | 0 |
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| 1997 | 35.5 | 41 | 42 | 44 | 28.9 | 38 | 3.23 | 48 | 0 |
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| 1996 | 39.1 | 11 | 45 | 17 | 33.2 | 8 | 6.47 | 7 | 0 |
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| 1995 | 30.1 | 70 | 36.7 | 72 | 23.5 | 69 | 1.94 | 67 | 0 |
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| 1994 | 38.7 | 14 | 46.1 | 11 | 31.2 | 16 | 3.73 | 39 | 0 |
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| 1993 | 35.5 | 41 | 42.5 | 40 | 28.5 | 44 | 4.54 | 22 | 0 |
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| 1992 | 36 | 33 | 42.9 | 35 | 29 | 34 | 4.30 | 29 | 0 |
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| 1991 | 36.7 | 28 | 44.3 | 25 | 29 | 34 | 4.27 | 30 | 0 |
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| 1990 | 40 | 8 | 47.3 | 6 | 32.6 | 11 | 3.53 | 43 | 0 |
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| 1989 | 23.3 | 78 | 30.9 | 78 | 15.7 | 78 | 0.83 | 77 | 0 |
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| 1988 | 32.7 | 62 | 40.3 | 54 | 25.1 | 65 | 1.63 | 70 | 0 |
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| 1987 | 36.8 | 27 | 43.1 | 32 | 30.5 | 24 | 2.08 | 64 | 0 |
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| 1986 | 35.5 | 41 | 41.9 | 46 | 29.1 | 33 | 4.41 | 24 | 0 |
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| 1985 | 31.4 | 67 | 38.1 | 68 | 24.7 | 68 | 1.25 | 73 | 0 |
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| 1984 | 40.2 | 7 | 47.1 | 7 | 33.3 | 7 | 2.56 | 58 | 0 |
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| 1983 | 33.1 | 60 | 40.2 | 55 | 26 | 61 | 4.74 | 19 | 0 |
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| 1982 | 38.7 | 14 | 45.3 | 14 | 32 | 12 | 1.10 | 74 | 0 |
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| 1981 | 33.8 | 52 | 40.7 | 50 | 26.9 | 57 | 3.65 | 42 | 0 |
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| 1980 | 31.3 | 68 | 40.1 | 56 | 22.4 | 72 | 0.95 | 76 | 0 |
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| 1979 | 37.9 | 18 | 44.3 | 25 | 31.5 | 13 | 2.24 | 61 | 0 |
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| 1978 | 36.2 | 30 | 43 | 33 | 29.4 | 30 | 4.76 | 18 | 0 |
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| 1977 | 33.5 | 55 | 39 | 65 | 27.9 | 47 | 5.17 | 16 | 0 |
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| 1976 | 29.9 | 71 | 37.1 | 70 | 22.7 | 70 | 2.59 | 57 | 0 |
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| 1975 | 35.5 | 41 | 42 | 44 | 29 | 34 | 4.50 | 23 | 0 |
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| 1974 | 37.4 | 25 | 43.7 | 29 | 31.1 | 17 | 5.93 | 9 | 0 |
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| 1973 | 37.6 | 24 | 45.1 | 16 | 30.2 | 25 | 6.53 | 6 | 0 |
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| 1972 | 35 | 46 | 40.5 | 52 | 29.6 | 29 | 7.87 | 2 | 0 |
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| 1971 | 38.5 | 16 | 46 | 12 | 31.1 | 17 | 3.33 | 46 | 0 |
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| 1970 | 32.6 | 63 | 39.3 | 63 | 25.9 | 63 | 2.46 | 59 | 0 |
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| 1969 | 32.6 | 63 | 38.5 | 67 | 26.8 | 58 | 6.55 | 5 | 0 |
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| 1968 | 32.4 | 65 | 38.9 | 66 | 25.9 | 63 | 7.45 | 3 | 0 |
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| 1967 | 35.9 | 36 | 42.7 | 36 | 29 | 34 | 5.60 | 13 | 0 |
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| 1966 | 33.8 | 52 | 40 | 57 | 27.5 | 51 | 2.80 | 53 | 0 |
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| 1965 | 38.1 | 17 | 44.7 | 20 | 31.5 | 13 | 1.35 | 72 | 0 |
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| 1964 | 34.1 | 51 | 40.6 | 51 | 27.5 | 51 | 2.24 | 61 | 0 |
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| 1963 | 27.7 | 76 | 33.8 | 77 | 21.6 | 74 | 2.16 | 63 | 0 |
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| 1962 | 28.8 | 73 | 35.9 | 74 | 21.7 | 73 | 2.01 | 66 | 0 |
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| 1961 | 33 | 61 | 39.3 | 63 | 26.8 | 58 | 2.68 | 55 | 0 |
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| 1960 | 28.6 | 74 | 37 | 71 | 20.3 | 76 | 2.91 | 52 | 0 |
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| 1959 | 36 | 33 | 42.7 | 36 | 29.4 | 30 | 3.83 | 37 | 0 |
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| 1958 | 27.3 | 77 | 34.9 | 75 | 19.8 | 77 | 1.63 | 70 | 0 |
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| 1957 | 37.8 | 19 | 44.7 | 20 | 30.9 | 19 | 3.90 | 35 | 0 |
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| 1956 | 37.7 | 21 | 45.2 | 15 | 30.2 | 25 | 3.85 | 36 | 0 |
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| 1955 | 27.9 | 75 | 34.6 | 76 | 21.2 | 75 | 0.33 | 78 | 0 |
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| 1954 | 34.5 | 50 | 41.3 | 49 | 27.6 | 50 | 4.70 | 20 | 0 |
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| 1953 | 38.8 | 13 | 46.6 | 9 | 30.9 | 19 | 4.68 | 21 | 0 |
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| 1952 | 36 | 33 | 42.7 | 36 | 29.4 | 30 | 3.13 | 50 | 0 |
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| 1951 | 35.9 | 36 | 43.9 | 28 | 28 | 46 | 4.31 | 28 | 0 |
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| 1950 | 33.3 | 57 | 39.9 | 58 | 26.7 | 60 | 3.18 | 49 | 0 |
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| 1949 | 35.7 | 38 | 43.5 | 30 | 27.9 | 47 | 3.35 | 45 | 0 |
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| 1948 | 34.8 | 49 | 42.5 | 40 | 27.2 | 55 | 5.42 | 15 | 0 |
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