Every May in Baker City, OR from 1928 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 | 53.7 | 33 | 72.1 | 11 | 35.3 | 84 | 0.14 | 97 | 0 |
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| 2025 | 53.5 | 36 | 69.6 | 28 | 37.3 | 57 | 0.37 | 91 | 0 |
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| 2024 | 53.1 | 41 | 68.3 | 40 | 38 | 45 | 1.55 | 35 | 0 |
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| 2023 | 55.5 | 14 | 71.1 | 17 | 39.9 | 21 | 1.70 | 30 | 0 |
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| 2022 | 48.1 | 93 | 61.4 | 93 | 34.8 | 89 | 2.05 | 19 | 0 |
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| 2021 | 51 | 69 | 66.9 | 54 | 35.1 | 86 | 0.57 | 78 | 0 |
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| 2020 | 54.9 | 21 | 70.4 | 20 | 39.5 | 26 | 1.11 | 50 | 0 |
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| 2019 | 55 | 16 | 70.4 | 20 | 39.7 | 24 | 0.90 | 62 | 0 |
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| 2018 | 58.5 | 2 | 73.8 | 3 | 43.2 | 1 | 0.92 | 61 | 0 |
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| 2017 | 51 | 69 | 67.2 | 51 | 34.7 | 92 | 0.38 | 89 | 0 |
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| 2016 | 52.7 | 45 | 68 | 43 | 37.4 | 55 | 1.07 | 51 | 0 |
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| 2015 | 53.9 | 31 | 69 | 31 | 38.8 | 34 | 1.98 | 21 | 0 |
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| 2014 | 52.1 | 52 | 68.8 | 35 | 35.5 | 82 | 0.58 | 76 | 0 |
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| 2013 | 52.1 | 52 | 69 | 31 | 35.3 | 84 | 1.52 | 36 | 0 |
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| 2012 | 50.1 | 82 | 65.5 | 65 | 34.8 | 89 | 0.93 | 60 | 0 |
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| 2011 | 47.9 | 95 | 60.7 | 95 | 35.1 | 86 | 3.24 | 5 | 0 |
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| 2010 | 46.1 | 99 | 58.7 | 98 | 33.5 | 97 | 1.76 | 27 | 0 |
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| 2009 | 51.6 | 60 | 68.7 | 36 | 34.6 | 94 | 1.49 | 37 | 0 |
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| 2008 | 51.7 | 57 | 66.1 | 59 | 37.3 | 57 | 2.14 | 15 | 0 |
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| 2007 | 52.6 | 47 | 69.8 | 26 | 35.4 | 83 | 0.57 | 78 | 0 |
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| 2006 | 53.2 | 39 | 69.7 | 27 | 36.8 | 63 | 1.29 | 41 | 0 |
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| 2005 | 52.2 | 51 | 65.4 | 66 | 38.9 | 32 | 2.99 | 9 | 0 |
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| 2004 | 50.4 | 78 | 63.4 | 81 | 37.5 | 53 | 1.67 | 31 | 0 |
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| 2003 | 51.4 | 63 | 65.8 | 64 | 36.9 | 61 | 3.23 | 6 | 0 |
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| 2002 | 49.5 | 84 | 65 | 69 | 34 | 96 | 0.29 | 92 | 0 |
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| 2001 | 54.3 | 28 | 72.2 | 10 | 36.4 | 74 | 0.45 | 84 | 0 |
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| 2000 | 53.2 | 39 | 67.4 | 48 | 38.9 | 32 | 0.69 | 68 | 0 |
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| 1999 | 49.2 | 87 | 64.8 | 71 | 33.5 | 97 | 0.58 | 76 | 0 |
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| 1998 | 51.4 | 63 | 63.5 | 80 | 39.3 | 28 | 4.20 | 1 | 0 |
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| 1997 | 56.4 | 10 | 72.5 | 8 | 40.2 | 18 | 0.49 | 83 | 0 |
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| 1996 | 49.4 | 85 | 62.8 | 85 | 36 | 78 | 1.32 | 39 | 0 |
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| 1995 | 52.4 | 49 | 66.7 | 55 | 38.1 | 43 | 1.18 | 46 | 0 |
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| 1994 | 54.8 | 22 | 68.5 | 39 | 41.2 | 8 | 1.21 | 45 | 0 |
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| 1993 | 57.4 | 4 | 72.1 | 11 | 42.6 | 4 | 1.02 | 57 | 0 |
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| 1992 | 57.2 | 7 | 75.9 | 1 | 38.6 | 37 | 0.43 | 87 | 0 |
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| 1991 | 49.1 | 89 | 61.6 | 91 | 36.5 | 73 | 3.92 | 2 | 0 |
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| 1990 | 50.3 | 81 | 63.8 | 79 | 36.8 | 63 | 2.13 | 16 | 0 |
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| 1989 | 50 | 83 | 64.2 | 75 | 35.7 | 81 | 1.98 | 21 | 0 |
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| 1988 | 51.5 | 62 | 66.7 | 55 | 36.4 | 74 | 1.00 | 58 | 0 |
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| 1987 | 55 | 16 | 70.2 | 24 | 39.9 | 21 | 1.03 | 56 | 0 |
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| 1986 | 55 | 16 | 69 | 31 | 40.9 | 11 | 1.32 | 39 | 0 |
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| 1985 | 54.7 | 24 | 69 | 31 | 40.4 | 17 | 1.48 | 38 | 0 |
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| 1984 | 51.1 | 68 | 64.2 | 75 | 38 | 45 | 0.86 | 65 | 0 |
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| 1983 | 53.5 | 36 | 68.3 | 40 | 38.8 | 34 | 1.12 | 49 | 0 |
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| 1982 | 51.7 | 57 | 66.5 | 57 | 36.8 | 63 | 0.25 | 94 | 0 |
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| 1981 | 51.3 | 66 | 63.4 | 81 | 39.2 | 29 | 2.26 | 13 | 0 |
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| 1980 | 53.6 | 34 | 67 | 53 | 40.2 | 18 | 1.85 | 25 | 0 |
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| 1979 | 54 | 29 | 69.6 | 28 | 38.5 | 38 | 1.17 | 47 | 0 |
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| 1978 | 50.8 | 72 | 64 | 77 | 37.6 | 50 | 0.68 | 71 | 0 |
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| 1977 | 49.2 | 87 | 62.1 | 88 | 36.3 | 76 | 2.13 | 16 | 0 |
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| 1976 | 53.5 | 36 | 69.5 | 30 | 37.5 | 53 | 0.45 | 84 | 0 |
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| 1975 | 51.8 | 56 | 66.1 | 59 | 37.6 | 50 | 0.59 | 74 | 0 |
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| 1974 | 50.6 | 76 | 64.5 | 74 | 36.7 | 69 | 0.71 | 67 | 0 |
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| 1973 | 55 | 16 | 71.8 | 13 | 38.2 | 41 | 1.97 | 23 | 0 |
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| 1972 | 56.6 | 9 | 73.2 | 6 | 40 | 20 | 0.90 | 62 | 0 |
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| 1971 | 54 | 29 | 68.1 | 42 | 39.9 | 21 | 1.64 | 32 | 0 |
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| 1970 | 50.8 | 72 | 64.7 | 73 | 36.9 | 61 | 2.06 | 18 | 0 |
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| 1969 | 55.5 | 14 | 71.5 | 15 | 39.5 | 26 | 1.81 | 26 | 0 |
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| 1968 | 51.6 | 60 | 67.2 | 51 | 35.9 | 80 | 0.66 | 72 | 0 |
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| 1967 | 52.1 | 52 | 67.7 | 45 | 36.6 | 70 | 1.16 | 48 | 0 |
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| 1966 | 55 | 16 | 73.3 | 5 | 36.8 | 63 | 0.57 | 78 | 0 |
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| 1965 | 50.8 | 72 | 65 | 69 | 36.6 | 70 | 0.18 | 95 | 0 |
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| 1964 | 53 | 42 | 68 | 43 | 38 | 45 | 0.57 | 78 | 0 |
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| 1963 | 54.7 | 24 | 68.6 | 38 | 40.8 | 12 | 1.26 | 43 | 0 |
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| 1962 | 50.4 | 78 | 62.3 | 87 | 38.5 | 38 | 2.20 | 14 | 0 |
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| 1961 | 51.4 | 63 | 66.1 | 59 | 36.8 | 63 | 1.93 | 24 | 0 |
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| 1960 | 49 | 90 | 62 | 89 | 36 | 78 | 3.01 | 8 | 0 |
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| 1959 | 47.8 | 96 | 60.9 | 94 | 34.8 | 89 | 1.23 | 44 | 0 |
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| 1958 | 58.9 | 1 | 75.6 | 2 | 42.2 | 5 | 1.06 | 52 | 0 |
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| 1957 | 53.6 | 34 | 65.9 | 63 | 41.4 | 7 | 1.74 | 28 | 0 |
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| 1956 | 54.4 | 27 | 67.4 | 48 | 41.5 | 6 | 3.03 | 7 | 0 |
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| 1955 | 48.6 | 91 | 62.4 | 86 | 34.9 | 88 | 0.69 | 68 | 0 |
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| 1954 | 53.8 | 32 | 70.5 | 18 | 37.2 | 59 | 1.05 | 54 | 0 |
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| 1953 | 48.1 | 93 | 61.5 | 92 | 34.7 | 92 | 3.80 | 3 | 0 |
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| 1952 | 52.9 | 43 | 67.3 | 50 | 38.5 | 38 | 2.03 | 20 | 0 |
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| 1951 | 52.7 | 45 | 67.6 | 46 | 37.7 | 49 | 0.79 | 66 | 0 |
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| 1950 | 49.3 | 86 | 66.1 | 59 | 32.5 | 99 | 0.04 | 98 | 0 |
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| 1949 | 55.7 | 12 | 70.4 | 20 | 41 | 10 | 1.60 | 33 | 0 |
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| 1948 | 50.7 | 75 | 63.3 | 83 | 38.1 | 43 | 2.34 | 12 | 0 |
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| 1947 | 57.3 | 6 | 73.8 | 3 | 40.8 | 12 | 1.00 | 58 | 0 |
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| 1946 | 52.5 | 48 | 67.6 | 46 | 37.4 | 55 | 2.43 | 10 | 0 |
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| 1945 | 51.7 | 57 | 65.3 | 68 | 38.2 | 41 | 2.35 | 11 | 0 |
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| 1944 | 52.4 | 49 | 68.7 | 36 | 36.1 | 77 | 1.27 | 42 | 0 |
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| 1943 | 47.4 | 98 | 60.6 | 96 | 34.1 | 95 | 0.40 | 88 | 0 |
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| 1942 | 48.6 | 91 | 59.6 | 97 | 37.6 | 50 | 3.61 | 4 | 0 |
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| 1941 | 52.9 | 43 | 65.4 | 66 | 40.5 | 15 | 1.04 | 55 | 0 |
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| 1940 | 56 | 11 | 71.5 | 15 | 40.5 | 15 | 0.38 | 89 | 0 |
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| 1939 | 55.6 | 13 | 70.5 | 18 | 40.7 | 14 | 0.87 | 64 | 0 |
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| 1938 | 52 | 55 | 66.3 | 58 | 37.8 | 48 | 0.53 | 82 | 0 |
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| 1937 | 54.5 | 26 | 70.3 | 23 | 38.8 | 34 | 0.01 | 99 | 0 |
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| 1936 | 57.4 | 4 | 71.8 | 13 | 43.1 | 2 | 0.69 | 68 | 0 |
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| 1935 | 50.4 | 78 | 64 | 77 | 36.8 | 63 | 0.63 | 73 | 0 |
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| 1934 | 58.1 | 3 | 73 | 7 | 43.1 | 2 | 0.45 | 84 | 0 |
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| 1933 | 47.7 | 97 | 58.7 | 98 | 36.6 | 70 | 1.59 | 34 | 0 |
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| 1932 | 51.2 | 67 | 63.3 | 83 | 39.1 | 30 | 1.06 | 52 | 0 |
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| 1931 | 54.8 | 22 | 70 | 25 | 39.6 | 25 | 0.26 | 93 | 0 |
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| 1930 | 50.5 | 77 | 62 | 89 | 39 | 31 | 1.74 | 28 | 0 |
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| 1929 | 51 | 69 | 64.8 | 71 | 37.2 | 59 | 0.59 | 74 | 0 |
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| 1928 | 56.9 | 8 | 72.5 | 8 | 41.2 | 8 | 0.18 | 95 | 0 |
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