Every May in Yakima, WA from 1947 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 | 61.8 | 9 | 78.2 | 9 | 45.3 | 17 | 0.34 | 48 | 0 |
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| 2025 | 58.8 | 31 | 75.6 | 22 | 42 | 45 | 0.30 | 50 | 0 |
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| 2024 | 57.2 | 48 | 73.1 | 45 | 41.2 | 52 | 0.27 | 53 | 0 |
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| 2023 | 64.9 | 3 | 79.8 | 5 | 50 | 2 | 0.11 | 67 | 0 |
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| 2022 | 54 | 72 | 67.8 | 74 | 40.3 | 65 | 0.85 | 18 | 0 |
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| 2021 | 59.2 | 28 | 75.3 | 24 | 43.2 | 32 | 0.05 | 74 | 0 |
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| 2020 | 59.9 | 20 | 74.5 | 28 | 45.3 | 17 | 0.88 | 16 | 0 |
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| 2019 | 61.6 | 10 | 76.4 | 15 | 46.9 | 7 | 0.77 | 23 | 0 |
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| 2018 | 66.3 | 1 | 81.2 | 2 | 51.3 | 1 | 0.13 | 65 | 0 |
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| 2017 | 61.3 | 12 | 77 | 11 | 45.6 | 13 | 0.55 | 33 | 0 |
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| 2016 | 63.1 | 6 | 78.4 | 8 | 47.8 | 6 | 0.64 | 28 | 0 |
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| 2015 | 64.9 | 3 | 80.1 | 4 | 49.8 | 3 | 1.80 | 4 | 0 |
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| 2014 | 60.5 | 17 | 76.9 | 13 | 44.2 | 27 | 0.13 | 65 | 0 |
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| 2013 | 60.3 | 18 | 75.9 | 20 | 44.6 | 22 | 2.48 | 3 | 0 |
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| 2012 | 57.7 | 42 | 73.5 | 43 | 42 | 45 | 0.16 | 60 | 0 |
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| 2011 | 54.5 | 68 | 69.4 | 66 | 39.7 | 72 | 2.55 | 2 | 0 |
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| 2010 | 54.1 | 71 | 67.6 | 75 | 40.6 | 60 | 1.46 | 5 | 0 |
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| 2009 | 57.9 | 40 | 74.4 | 32 | 41.5 | 49 | 0.76 | 24 | 0 |
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| 2008 | 59.9 | 20 | 74.2 | 33 | 45.6 | 13 | 0.21 | 57 | 0 |
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| 2007 | 58.2 | 37 | 75.3 | 24 | 41.1 | 53 | 0.32 | 49 | 0 |
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| 2006 | 57.6 | 44 | 73.7 | 39 | 41.4 | 50 | 0.82 | 20 | 0 |
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| 2005 | 60.1 | 19 | 73.6 | 40 | 46.6 | 9 | 1.17 | 10 | 0 |
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| 2004 | 57.1 | 51 | 71.4 | 52 | 42.8 | 35 | 0.43 | 42 | 0 |
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| 2003 | 56.6 | 55 | 71.1 | 56 | 42.1 | 43 | 0.16 | 60 | 0 |
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| 2002 | 55.2 | 62 | 69.4 | 66 | 41 | 55 | 0.69 | 25 | 0 |
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| 2001 | 58.1 | 39 | 75.9 | 20 | 40.4 | 64 | 0.01 | 80 | 0 |
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| 2000 | 57 | 52 | 71 | 57 | 43 | 34 | 0.54 | 34 | 0 |
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| 1999 | 53.5 | 75 | 68.8 | 70 | 38.3 | 77 | 0.26 | 54 | 0 |
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| 1998 | 58.2 | 37 | 71.4 | 52 | 45.1 | 20 | 1.20 | 8 | 0 |
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| 1997 | 59.7 | 24 | 74.8 | 27 | 44.5 | 23 | 0.22 | 56 | 0 |
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| 1996 | 53.1 | 77 | 67.3 | 77 | 39 | 75 | 1.24 | 6 | 0 |
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| 1995 | 59 | 29 | 74.1 | 36 | 43.9 | 28 | 0.62 | 30 | 0 |
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| 1994 | 59.7 | 24 | 74.2 | 33 | 45.2 | 19 | 1.22 | 7 | 0 |
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| 1993 | 61.4 | 11 | 77.5 | 10 | 45.4 | 15 | 0.43 | 42 | 0 |
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| 1992 | 60.6 | 16 | 78.9 | 7 | 42.4 | 40 | 0.04 | 76 | 0 |
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| 1991 | 54.9 | 65 | 69.9 | 63 | 40 | 69 | 0.17 | 59 | 0 |
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| 1990 | 55 | 64 | 69.7 | 64 | 40.2 | 67 | 1.13 | 11 | 0 |
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| 1989 | 56.2 | 58 | 71.4 | 52 | 41 | 55 | 0.63 | 29 | 0 |
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| 1988 | 55.1 | 63 | 70.5 | 58 | 39.6 | 73 | 0.18 | 58 | 0 |
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| 1987 | 59.5 | 26 | 75.5 | 23 | 43.6 | 29 | 0.10 | 68 | 0 |
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| 1986 | 57.6 | 44 | 72.5 | 47 | 42.6 | 39 | 0.94 | 14 | 0 |
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| 1985 | 58.8 | 31 | 74.1 | 36 | 43.4 | 30 | 0.46 | 41 | 0 |
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| 1984 | 52.4 | 80 | 66.6 | 79 | 38.2 | 78 | 0.51 | 37 | 0 |
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| 1983 | 60.9 | 14 | 76.4 | 15 | 45.4 | 15 | 0.30 | 50 | 0 |
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| 1982 | 56 | 60 | 70.5 | 58 | 41.4 | 50 | 0.37 | 46 | 0 |
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| 1981 | 56.8 | 53 | 70.2 | 60 | 43.4 | 30 | 0.68 | 26 | 0 |
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| 1980 | 58.9 | 30 | 71.7 | 51 | 46.1 | 11 | 0.84 | 19 | 0 |
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| 1979 | 59.5 | 26 | 74.5 | 28 | 44.5 | 23 | 0.04 | 76 | 0 |
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| 1978 | 54.8 | 67 | 69.7 | 64 | 39.8 | 71 | 0.28 | 52 | 0 |
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| 1977 | 52.7 | 79 | 66.8 | 78 | 38.6 | 76 | 0.68 | 26 | 0 |
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| 1976 | 56.1 | 59 | 72 | 49 | 40.2 | 67 | 0.09 | 70 | 0 |
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| 1975 | 57.6 | 44 | 74.2 | 33 | 41.1 | 53 | 0.23 | 55 | 0 |
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| 1974 | 54.2 | 69 | 68 | 73 | 40.5 | 62 | 0.80 | 22 | 0 |
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| 1973 | 58.5 | 34 | 76.3 | 17 | 40.6 | 60 | 0.08 | 71 | 0 |
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| 1972 | 59.8 | 23 | 77 | 11 | 42.7 | 37 | 0.60 | 31 | 0 |
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| 1971 | 60.7 | 15 | 76.5 | 14 | 44.8 | 21 | 0.54 | 34 | 0 |
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| 1970 | 58.5 | 34 | 73.9 | 38 | 43.2 | 32 | 0.06 | 73 | 0 |
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| 1969 | 59.9 | 20 | 75.3 | 24 | 44.5 | 23 | 0.54 | 34 | 0 |
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| 1968 | 56.8 | 53 | 71.4 | 52 | 42.2 | 42 | 0.47 | 40 | 0 |
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| 1967 | 57.6 | 44 | 72.5 | 47 | 42.7 | 37 | 0.16 | 60 | 0 |
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| 1966 | 58.3 | 36 | 74.5 | 28 | 42.1 | 43 | 0.10 | 68 | 0 |
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| 1965 | 56.4 | 57 | 71.8 | 50 | 40.9 | 57 | 0.05 | 74 | 0 |
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| 1964 | 53.5 | 75 | 69.3 | 69 | 37.8 | 79 | 0.03 | 78 | 0 |
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| 1963 | 57.8 | 41 | 73.1 | 45 | 42.4 | 40 | 0.43 | 42 | 0 |
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| 1962 | 53.7 | 74 | 66.5 | 80 | 40.8 | 58 | 1.09 | 12 | 0 |
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| 1961 | 55.9 | 61 | 70 | 62 | 41.7 | 48 | 0.96 | 13 | 0 |
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| 1960 | 54.2 | 69 | 68.5 | 71 | 39.9 | 70 | 0.87 | 17 | 0 |
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| 1959 | 53.1 | 77 | 68.5 | 71 | 37.7 | 80 | 0.14 | 63 | 0 |
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| 1958 | 64 | 5 | 81.1 | 3 | 46.9 | 7 | 0.59 | 32 | 0 |
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| 1957 | 62.4 | 8 | 76.3 | 17 | 48.5 | 4 | 1.19 | 9 | 0 |
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| 1956 | 61.2 | 13 | 76.1 | 19 | 46.4 | 10 | 0.48 | 39 | 0 |
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| 1955 | 54 | 72 | 67.5 | 76 | 40.5 | 62 | 0.41 | 45 | 0 |
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| 1954 | 57.7 | 42 | 73.6 | 40 | 41.8 | 47 | 0.36 | 47 | 0 |
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| 1953 | 54.9 | 65 | 69.4 | 66 | 40.3 | 65 | 0.92 | 15 | 0 |
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| 1952 | 58.6 | 33 | 74.5 | 28 | 42.8 | 35 | 0.50 | 38 | 0 |
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| 1951 | 57.2 | 48 | 73.5 | 43 | 40.8 | 58 | 0.81 | 21 | 0 |
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| 1950 | 56.5 | 56 | 73.6 | 40 | 39.4 | 74 | 0.08 | 71 | 0 |
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| 1949 | 62.7 | 7 | 79.7 | 6 | 45.7 | 12 | 0.14 | 63 | 0 |
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| 1948 | 57.2 | 48 | 70.1 | 61 | 44.3 | 26 | 2.76 | 1 | 0 |
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| 1947 | 65 | 2 | 81.9 | 1 | 48 | 5 | 0.03 | 78 | 0 |
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