Every 1 September to 9 October in Yakima, WA from 1946 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 | 60.1 | 35 | 75.1 | 50 | 45.1 | 20 | 1.83 | 2 | 1 |
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| 2025 | 64.7 | 2 | 80.8 | 6 | 48.5 | 2 | 0.17 | 54 | 0 |
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| 2024 | 63.8 | 5 | 80.9 | 5 | 46.6 | 9 | 0.07 | 65 | 0 |
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| 2023 | 62.1 | 17 | 77.3 | 33 | 46.8 | 6 | 0.40 | 37 | 0 |
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| 2022 | 65.2 | 1 | 82.5 | 2 | 47.9 | 3 | 0.13 | 59 | 0 |
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| 2021 | 59.5 | 41 | 75.8 | 46 | 43.2 | 36 | 0.43 | 36 | 0 |
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| 2020 | 64.4 | 3 | 82 | 3 | 46.8 | 6 | 0.06 | 68 | 0 |
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| 2019 | 58.1 | 58 | 72.3 | 76 | 43.8 | 29 | 0.59 | 24 | 0 |
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| 2018 | 57.8 | 64 | 73.1 | 66 | 42.5 | 47 | 0.56 | 28 | 0 |
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| 2017 | 62.5 | 13 | 78.7 | 24 | 46.3 | 11 | 0.16 | 55 | 0 |
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| 2016 | 61.2 | 28 | 77.1 | 37 | 45.3 | 17 | 0.85 | 15 | 0 |
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| 2015 | 61.8 | 21 | 78.5 | 26 | 45.2 | 18 | 0.04 | 71 | 0 |
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| 2014 | 63 | 8 | 80.1 | 11 | 46 | 14 | 0.46 | 34 | 0 |
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| 2013 | 61.7 | 22 | 76.7 | 39 | 46.6 | 9 | 0.30 | 44 | 0 |
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| 2012 | 61.4 | 25 | 80.4 | 9 | 42.5 | 47 | 0.04 | 71 | 0 |
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| 2011 | 62.6 | 12 | 80.2 | 10 | 45.1 | 20 | 0.81 | 18 | 0 |
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| 2010 | 61.6 | 24 | 76.4 | 40 | 46.8 | 6 | 1.09 | 7 | 0 |
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| 2009 | 59.5 | 41 | 76.3 | 42 | 42.6 | 45 | 0.69 | 21 | 0 |
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| 2008 | 59.3 | 46 | 76 | 44 | 42.6 | 45 | 0.56 | 28 | 0 |
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| 2007 | 57.8 | 64 | 74.2 | 57 | 41.4 | 66 | 0.19 | 51 | 0 |
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| 2006 | 59.8 | 38 | 77.3 | 33 | 42.3 | 51 | 0.57 | 26 | 0 |
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| 2005 | 56.6 | 75 | 73 | 69 | 40.2 | 75 | 0.40 | 37 | 0 |
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| 2004 | 59 | 47 | 75.2 | 49 | 42.7 | 41 | 0.58 | 25 | 0 |
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| 2003 | 62.9 | 11 | 80.6 | 7 | 45.2 | 18 | 0.07 | 65 | 0 |
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| 2002 | 58.6 | 50 | 75.5 | 48 | 41.8 | 60 | 0.19 | 51 | 0 |
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| 2001 | 61.3 | 27 | 78.8 | 22 | 43.9 | 28 | 0.14 | 58 | 0 |
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| 2000 | 57.7 | 66 | 74 | 63 | 41.3 | 67 | 0.31 | 43 | 0 |
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| 1999 | 57.6 | 67 | 75.8 | 46 | 39.4 | 76 | trace | 78 | 0 |
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| 1998 | 62.1 | 17 | 79.5 | 17 | 44.7 | 23 | 0.22 | 49 | 0 |
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| 1997 | 59.6 | 40 | 74.4 | 53 | 44.9 | 22 | 1.07 | 9 | 0 |
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| 1996 | 57.2 | 69 | 74.1 | 60 | 40.3 | 73 | 0.36 | 39 | 0 |
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| 1995 | 61.1 | 29 | 77.4 | 32 | 44.7 | 23 | 0.80 | 19 | 0 |
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| 1994 | 62.1 | 17 | 79.6 | 16 | 44.6 | 25 | 0.09 | 62 | 0 |
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| 1993 | 60.5 | 31 | 78.9 | 19 | 42 | 56 | 0.04 | 71 | 0 |
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| 1992 | 58.4 | 55 | 74.4 | 53 | 42.4 | 49 | 0.28 | 45 | 0 |
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| 1991 | 61.7 | 22 | 80.6 | 7 | 42.8 | 40 | 0.08 | 64 | 0 |
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| 1990 | 62.2 | 15 | 80 | 12 | 44.4 | 27 | 0.04 | 71 | 0 |
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| 1989 | 59.4 | 44 | 77.7 | 29 | 41.1 | 69 | 0.09 | 62 | 0 |
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| 1988 | 60.6 | 30 | 78.9 | 19 | 42.3 | 51 | 0.13 | 59 | 0 |
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| 1987 | 61.9 | 20 | 81.1 | 4 | 42.7 | 41 | 0.00 | 80 | 0 |
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| 1986 | 56.7 | 72 | 71.4 | 77 | 42.1 | 53 | 2.07 | 1 | 0 |
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| 1985 | 53.6 | 80 | 68.7 | 80 | 38.5 | 79 | 1.55 | 3 | 0 |
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| 1984 | 58.6 | 50 | 74.2 | 57 | 43.1 | 37 | 0.49 | 32 | 0 |
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| 1983 | 57.1 | 70 | 72.5 | 74 | 41.6 | 63 | 0.33 | 42 | 0 |
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| 1982 | 57.9 | 59 | 72.6 | 73 | 43.3 | 34 | 1.08 | 8 | 0 |
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| 1981 | 58.6 | 50 | 74.4 | 53 | 42.7 | 41 | 1.55 | 3 | 0 |
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| 1980 | 62.2 | 15 | 78.8 | 22 | 45.5 | 16 | 0.48 | 33 | 0 |
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| 1979 | 63 | 8 | 79.9 | 13 | 46.1 | 13 | 0.36 | 39 | 0 |
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| 1978 | 57.9 | 59 | 72.5 | 74 | 43.3 | 34 | 0.64 | 22 | 0 |
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| 1977 | 55.6 | 79 | 69.3 | 79 | 41.9 | 57 | 0.94 | 12 | 0 |
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| 1976 | 62.5 | 13 | 78.7 | 24 | 46.3 | 11 | 0.16 | 55 | 0 |
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| 1975 | 60.3 | 33 | 78.1 | 27 | 42.4 | 49 | 0.27 | 46 | 0 |
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| 1974 | 60.1 | 35 | 78.9 | 19 | 41.2 | 68 | 0.02 | 76 | 0 |
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| 1973 | 58.7 | 49 | 74.3 | 56 | 43.1 | 37 | 1.01 | 10 | 0 |
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| 1972 | 56.4 | 76 | 74.2 | 57 | 38.6 | 78 | 0.06 | 68 | 0 |
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| 1971 | 56 | 78 | 74.1 | 60 | 37.8 | 80 | 0.73 | 20 | 0 |
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| 1970 | 56.9 | 71 | 72.8 | 70 | 40.9 | 70 | 0.07 | 65 | 0 |
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| 1969 | 58.6 | 50 | 72.8 | 70 | 44.5 | 26 | 0.35 | 41 | 0 |
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| 1968 | 58.3 | 57 | 73.1 | 66 | 43.5 | 31 | 0.54 | 31 | 0 |
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| 1967 | 63 | 8 | 79.1 | 18 | 47 | 5 | 0.26 | 47 | 0 |
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| 1966 | 64.4 | 3 | 79.8 | 14 | 49.1 | 1 | 0.98 | 11 | 0 |
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| 1965 | 57.9 | 59 | 74.1 | 60 | 41.7 | 62 | 0.05 | 70 | 0 |
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| 1964 | 56.1 | 77 | 72.8 | 70 | 39.4 | 76 | 0.16 | 55 | 0 |
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| 1963 | 63.5 | 6 | 79.7 | 15 | 47.3 | 4 | 0.12 | 61 | 0 |
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| 1962 | 59 | 47 | 76.4 | 40 | 41.6 | 63 | 0.44 | 35 | 0 |
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| 1961 | 56.7 | 72 | 73.1 | 66 | 40.3 | 73 | 0.02 | 76 | 0 |
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| 1960 | 59.4 | 44 | 77.3 | 33 | 41.5 | 65 | 0.25 | 48 | 0 |
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| 1959 | 56.7 | 72 | 70.8 | 78 | 42.7 | 41 | 0.56 | 28 | 0 |
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| 1958 | 58.4 | 55 | 75 | 52 | 41.8 | 60 | 0.20 | 50 | 0 |
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| 1957 | 59.7 | 39 | 75.9 | 45 | 43.5 | 31 | 1.45 | 5 | 0 |
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| 1956 | 59.5 | 41 | 76.8 | 38 | 42.1 | 53 | 0.62 | 23 | 0 |
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| 1955 | 57.9 | 59 | 73.6 | 64 | 42.1 | 53 | 0.91 | 13 | 0 |
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| 1954 | 57.6 | 67 | 73.2 | 65 | 41.9 | 57 | 0.83 | 17 | 0 |
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| 1953 | 60 | 37 | 78.1 | 27 | 41.9 | 57 | trace | 78 | 0 |
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| 1952 | 63.3 | 7 | 82.8 | 1 | 43.8 | 29 | 0.03 | 75 | 0 |
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| 1951 | 60.5 | 31 | 77.5 | 31 | 43.4 | 33 | 0.57 | 26 | 0 |
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| 1950 | 58.6 | 50 | 76.3 | 42 | 40.9 | 70 | 0.89 | 14 | 0 |
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| 1949 | 60.3 | 33 | 77.6 | 30 | 43 | 39 | 0.18 | 53 | 0 |
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| 1948 | 57.9 | 59 | 75.1 | 50 | 40.6 | 72 | 0.85 | 15 | 0 |
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| 1947 | 61.4 | 25 | 77.3 | 33 | 45.6 | 15 | 1.21 | 6 | 0 |
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| 1946 | | | | | | | | | 5 |
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