Every July in Olympia, WA from 1948 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 | 64.1 | 32 | 78.5 | 31 | 49.7 | 39 | 0.12 | 64 | 0 |
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| 2025 | 65.5 | 15 | 80.4 | 15 | 50.6 | 22 | trace | 74 | 0 |
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| 2024 | 67.6 | 3 | 83.5 | 3 | 51.6 | 12 | 0.21 | 53 | 0 |
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| 2023 | 65.3 | 18 | 81.3 | 10 | 49.3 | 48 | 0.03 | 71 | 0 |
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| 2022 | 66.5 | 9 | 81.2 | 13 | 51.8 | 10 | 0.09 | 66 | 0 |
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| 2021 | 65.6 | 14 | 80.4 | 15 | 50.8 | 19 | 0.00 | 79 | 0 |
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| 2020 | 63.7 | 39 | 77 | 45 | 50.5 | 25 | 0.18 | 54 | 0 |
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| 2019 | 64.2 | 31 | 76.1 | 54 | 52.3 | 7 | 1.23 | 15 | 0 |
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| 2018 | 66.6 | 8 | 82.7 | 6 | 50.4 | 28 | 0.07 | 67 | 0 |
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| 2017 | 64.8 | 24 | 79.7 | 20 | 49.8 | 37 | 0.05 | 69 | 0 |
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| 2016 | 64.1 | 32 | 75.9 | 56 | 52.3 | 7 | 0.62 | 30 | 0 |
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| 2015 | 68 | 2 | 83.3 | 4 | 52.8 | 4 | 0.15 | 59 | 0 |
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| 2014 | 66.7 | 7 | 81.5 | 9 | 52 | 9 | 0.27 | 50 | 0 |
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| 2013 | 64.1 | 32 | 78.6 | 30 | 49.6 | 44 | trace | 74 | 0 |
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| 2012 | 62.6 | 54 | 74 | 66 | 51.2 | 18 | 0.90 | 22 | 0 |
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| 2011 | 61.8 | 64 | 73.9 | 69 | 49.7 | 39 | 1.42 | 10 | 0 |
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| 2010 | 62.5 | 56 | 76 | 55 | 49 | 52 | 0.16 | 57 | 0 |
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| 2009 | 66.8 | 5 | 81.9 | 8 | 51.7 | 11 | 0.15 | 59 | 0 |
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| 2008 | 62.6 | 54 | 76.5 | 49 | 48.7 | 58 | 0.42 | 36 | 0 |
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| 2007 | 65.4 | 17 | 77.7 | 36 | 53 | 3 | 1.85 | 4 | 0 |
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| 2006 | 65.3 | 18 | 79.1 | 25 | 51.5 | 13 | 0.15 | 59 | 0 |
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| 2005 | 63.5 | 42 | 76.8 | 47 | 50.3 | 30 | 0.93 | 21 | 0 |
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| 2004 | 65.9 | 11 | 80.5 | 14 | 51.4 | 14 | 0.03 | 71 | 0 |
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| 2003 | 65.1 | 21 | 81.3 | 10 | 49 | 52 | 0.14 | 62 | 0 |
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| 2002 | 63.3 | 44 | 76.6 | 48 | 50 | 34 | 0.35 | 43 | 0 |
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| 2001 | 60.4 | 74 | 73.5 | 73 | 47.3 | 75 | 0.18 | 54 | 0 |
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| 2000 | 62.7 | 51 | 75.1 | 62 | 50.3 | 30 | 0.06 | 68 | 0 |
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| 1999 | 60.9 | 72 | 74.4 | 64 | 47.4 | 73 | 0.58 | 31 | 0 |
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| 1998 | 66.8 | 5 | 78.9 | 27 | 54.8 | 1 | 0.18 | 54 | 0 |
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| 1997 | 63.1 | 46 | 76.3 | 52 | 49.8 | 37 | 1.18 | 16 | 0 |
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| 1996 | 65.2 | 20 | 79.7 | 20 | 50.3 | 30 | 0.71 | 28 | 1 |
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| 1995 | 65.5 | 15 | 78.4 | 32 | 52.7 | 6 | 1.71 | 6 | 0 |
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| 1994 | 66.3 | 10 | 82.1 | 7 | 50.4 | 28 | 0.29 | 48 | 0 |
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| 1993 | 60.3 | 75 | 71.1 | 78 | 49.5 | 45 | 1.35 | 11 | 0 |
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| 1992 | 64.7 | 26 | 78 | 34 | 51.3 | 15 | 0.36 | 41 | 0 |
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| 1991 | 63.8 | 36 | 77.9 | 35 | 49.7 | 39 | 0.33 | 44 | 0 |
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| 1990 | 65.8 | 13 | 80.2 | 17 | 51.3 | 15 | 0.32 | 45 | 0 |
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| 1989 | 61 | 71 | 73.3 | 74 | 48.8 | 57 | 0.70 | 29 | 0 |
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| 1988 | 62.5 | 56 | 77 | 45 | 48.1 | 65 | 0.42 | 36 | 0 |
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| 1987 | 62.3 | 60 | 74.1 | 65 | 50.6 | 22 | 0.84 | 24 | 0 |
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| 1986 | 59.6 | 78 | 71.5 | 77 | 47.8 | 70 | 1.11 | 17 | 0 |
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| 1985 | 67.4 | 4 | 84.4 | 1 | 50.5 | 25 | 0.37 | 40 | 0 |
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| 1984 | 63.3 | 44 | 77.6 | 37 | 48.9 | 55 | trace | 74 | 0 |
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| 1983 | 62 | 62 | 73.2 | 75 | 50.7 | 20 | 3.00 | 1 | 0 |
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| 1982 | 63 | 47 | 75.5 | 59 | 50.6 | 22 | 0.54 | 32 | 0 |
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| 1981 | 62.7 | 51 | 75.6 | 58 | 49.7 | 39 | 0.36 | 41 | 0 |
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| 1980 | 62.8 | 49 | 76.2 | 53 | 49.5 | 45 | 0.41 | 38 | 0 |
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| 1979 | 65.1 | 21 | 79.5 | 22 | 50.7 | 20 | 1.58 | 7 | 0 |
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| 1978 | 65.1 | 21 | 77.5 | 39 | 52.8 | 4 | 1.49 | 8 | 0 |
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| 1977 | 59.7 | 77 | 73.7 | 71 | 45.6 | 79 | 0.32 | 45 | 0 |
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| 1976 | 61.7 | 66 | 74.7 | 63 | 48.7 | 58 | 1.26 | 14 | 0 |
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| 1975 | 63.8 | 36 | 76.4 | 50 | 51.3 | 15 | 0.25 | 52 | 0 |
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| 1974 | 62.4 | 58 | 75.5 | 59 | 49.2 | 49 | 2.29 | 3 | 0 |
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| 1973 | 62.7 | 51 | 77.5 | 39 | 47.9 | 69 | 0.05 | 69 | 0 |
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| 1972 | 62.8 | 49 | 77.6 | 37 | 48 | 67 | 1.72 | 5 | 0 |
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| 1971 | 63.4 | 43 | 77.5 | 39 | 49.4 | 47 | 0.78 | 27 | 0 |
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| 1970 | 64.1 | 32 | 79.1 | 25 | 49.1 | 50 | 0.16 | 57 | 0 |
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| 1969 | 62.1 | 61 | 76.4 | 50 | 47.7 | 71 | 0.50 | 34 | 0 |
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| 1968 | 64.8 | 24 | 79.9 | 19 | 49.7 | 39 | 0.89 | 23 | 0 |
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| 1967 | 63.8 | 36 | 79.5 | 22 | 48.2 | 64 | 0.02 | 73 | 0 |
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| 1966 | 60.8 | 73 | 73.6 | 72 | 48.1 | 65 | 1.34 | 13 | 0 |
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| 1965 | 65.9 | 11 | 81.3 | 10 | 50.5 | 25 | 0.48 | 35 | 0 |
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| 1964 | 61.1 | 70 | 73.8 | 70 | 48.4 | 63 | 1.07 | 19 | 0 |
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| 1963 | 62 | 62 | 74 | 66 | 50 | 34 | 1.48 | 9 | 0 |
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| 1962 | 61.8 | 64 | 77.5 | 39 | 46.2 | 78 | 0.14 | 62 | 0 |
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| 1961 | 64.3 | 30 | 80.1 | 18 | 48.5 | 61 | 0.80 | 26 | 0 |
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| 1960 | 64.7 | 26 | 82.8 | 5 | 46.6 | 76 | trace | 74 | 0 |
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| 1959 | 64.7 | 26 | 79.2 | 24 | 50.2 | 33 | 0.30 | 47 | 0 |
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| 1958 | 69.1 | 1 | 84.3 | 2 | 53.9 | 2 | trace | 74 | 0 |
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| 1957 | 61.5 | 69 | 74 | 66 | 49 | 52 | 0.97 | 20 | 0 |
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| 1956 | 64.5 | 29 | 78.9 | 27 | 50 | 34 | 0.38 | 39 | 0 |
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| 1955 | 59.9 | 76 | 70.7 | 79 | 49.1 | 50 | 2.68 | 2 | 0 |
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| 1954 | 59.5 | 79 | 72.3 | 76 | 46.6 | 76 | 0.82 | 25 | 0 |
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| 1953 | 62.4 | 58 | 77.3 | 43 | 47.5 | 72 | 0.27 | 50 | 0 |
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| 1952 | 63.7 | 39 | 78.9 | 27 | 48.5 | 61 | 0.10 | 65 | 0 |
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| 1951 | 63.7 | 39 | 78.4 | 32 | 48.9 | 55 | 0.28 | 49 | 0 |
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| 1950 | 62.9 | 48 | 77.3 | 43 | 48.6 | 60 | 1.35 | 11 | 0 |
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| 1949 | 61.6 | 67 | 75.8 | 57 | 47.4 | 73 | 0.51 | 33 | 0 |
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| 1948 | 61.6 | 67 | 75.2 | 61 | 48 | 67 | 1.10 | 18 | 0 |
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