Every September in Omak, WA from 1909 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 |
|---|
| 2026 | 62.1 | 49 | 75.7 | 72 | 48.5 | 20 | 0.53 | 37 | 0 |
|---|
| 2025 | 69.6 | 1 | 84.8 | 2 | 54.4 | 1 | 0.12 | 81 | 0 |
|---|
| 2024 | 68.5 | 3 | 84.2 | 6 | 52.8 | 2 | 0.03 | 98 | 0 |
|---|
| 2023 | 65.2 | 14 | 78.5 | 44 | 51.8 | 4 | 1.74 | 8 | 0 |
|---|
| 2022 | 67 | 7 | 82.3 | 14 | 51.7 | 5 | 0.26 | 64 | 0 |
|---|
| 2021 | 62.8 | 42 | 77.1 | 60 | 48.6 | 19 | 0.29 | 59 | 0 |
|---|
| 2020 | 66.4 | 11 | 81.6 | 21 | 51.1 | 8 | 0.35 | 53 | 0 |
|---|
| 2019 | 61.7 | 54 | 72.8 | 97 | 50.5 | 11 | 2.90 | 1 | 0 |
|---|
| 2018 | 61.6 | 55 | 75.5 | 76 | 47.7 | 35 | 0.05 | 96 | 0 |
|---|
| 2017 | 63.6 | 30 | 78.9 | 38 | 48.2 | 26 | 0.10 | 87 | 0 |
|---|
| 2016 | 61.5 | 57 | 76 | 69 | 47.1 | 40 | trace | 102 | 0 |
|---|
| 2015 | 62 | 51 | 76.1 | 66 | 48 | 30 | trace | 102 | 0 |
|---|
| 2014 | 63.5 | 33 | 78.6 | 42 | 48.4 | 21 | 0.77 | 30 | 0 |
|---|
| 2013 | 64.5 | 18 | 77.9 | 51 | 51.1 | 8 | 1.41 | 12 | 0 |
|---|
| 2012 | 64.7 | 17 | 82.4 | 13 | 47.1 | 40 | 0.01 | 100 | 0 |
|---|
| 2011 | 64.3 | 22 | 82.5 | 12 | 46.1 | 55 | 0.07 | 90 | 0 |
|---|
| 2010 | 61.5 | 57 | 75.2 | 77 | 47.8 | 33 | 0.98 | 24 | 0 |
|---|
| 2009 | 64.2 | 25 | 81.1 | 23 | 47.3 | 38 | 0.42 | 45 | 0 |
|---|
| 2008 | 61.4 | 60 | 78.1 | 50 | 44.6 | 74 | 0.12 | 81 | 0 |
|---|
| 2007 | 60.7 | 66 | 76.5 | 65 | 45 | 67 | 1.04 | 21 | 1 |
|---|
| 2006 | 63.2 | 35 | 79.5 | 36 | 46.8 | 47 | 0.22 | 65 | 0 |
|---|
| 2005 | 60.3 | 73 | 76.1 | 66 | 44.6 | 74 | 0.12 | 81 | 0 |
|---|
| 2004 | 60.9 | 64 | 75 | 80 | 46.8 | 47 | 0.14 | 75 | 0 |
|---|
| 2003 | 64.5 | 18 | 80.3 | 32 | 48.8 | 17 | 0.35 | 53 | 0 |
|---|
| 2002 | 61.5 | 57 | 77.8 | 52 | 45.1 | 65 | 0.19 | 68 | 0 |
|---|
| 2001 | 65.3 | 12 | 81.1 | 23 | 49.5 | 13 | 0.40 | 47 | 0 |
|---|
| 2000 | 58.6 | 90 | 75.1 | 78 | 42.1 | 97 | 0.07 | 90 | 0 |
|---|
| 1999 | 61.2 | 62 | 77.6 | 56 | 44.7 | 72 | trace | 102 | 0 |
|---|
| 1998 | 66.7 | 9 | 83.8 | 8 | 49.7 | 12 | 0.30 | 56 | 0 |
|---|
| 1997 | | | | | | | 0.84 | 28 | 10 |
|---|
| 1996 | 59.8 | 81 | 73.6 | 94 | 46.2 | 52 | 1.83 | 5 | 2 |
|---|
| 1994 | 67.9 | 5 | 83.7 | 9 | 52.2 | 3 | 0.12 | 81 | 2 |
|---|
| 1993 | 63.6 | 30 | 78.5 | 44 | 48.8 | 17 | 0.05 | 96 | 1 |
|---|
| 1992 | 60.4 | 70 | 74.8 | 84 | 45.9 | 56 | 0.15 | 73 | 0 |
|---|
| 1990 | 68.1 | 4 | 84.7 | 3 | 51.2 | 7 | 0.00 | 107 | 1 |
|---|
| 1989 | 64.3 | 22 | 80.6 | 27 | 48 | 30 | 0.19 | 68 | 0 |
|---|
| 1988 | 63.5 | 33 | 78.8 | 39 | 48.2 | 26 | 0.10 | 87 | 0 |
|---|
| 1987 | 66.6 | 10 | 83.9 | 7 | 49.3 | 15 | 0.00 | 107 | 0 |
|---|
| 1986 | 59.7 | 83 | 71.5 | 102 | 47.8 | 33 | 2.21 | 4 | 0 |
|---|
| 1984 | 59.7 | 83 | 76 | 69 | 43.3 | 89 | 0.11 | 85 | 0 |
|---|
| 1983 | 60 | 77 | 75 | 80 | 45 | 67 | 0.46 | 41 | 0 |
|---|
| 1982 | 62.6 | 45 | 77.3 | 59 | 47.9 | 32 | 0.58 | 35 | 0 |
|---|
| 1981 | 63.7 | 29 | 80.4 | 30 | 47 | 42 | 0.79 | 29 | 0 |
|---|
| 1980 | 63.2 | 35 | 77.5 | 58 | 48.9 | 16 | 1.46 | 10 | 0 |
|---|
| 1979 | | | | | | | | | 15 |
|---|
| 1978 | 58.1 | 94 | 69.9 | 105 | 46.3 | 51 | 1.23 | 19 | 0 |
|---|
| 1977 | | | | | | | 0.62 | 32 | 7 |
|---|
| 1976 | 62.9 | 41 | 77.6 | 56 | 48.1 | 29 | 0.07 | 90 | 0 |
|---|
| 1975 | 60.7 | 66 | 76.8 | 63 | 44.7 | 72 | 0.00 | 107 | 0 |
|---|
| 1974 | 61.2 | 62 | 77.7 | 55 | 44.6 | 74 | 0.06 | 93 | 0 |
|---|
| 1973 | 59.3 | 86 | 73.6 | 94 | 45 | 67 | 1.46 | 10 | 0 |
|---|
| 1972 | 54.3 | 108 | 69.3 | 107 | 39.3 | 109 | 0.46 | 41 | 0 |
|---|
| 1971 | 55.3 | 106 | 68.7 | 109 | 41.9 | 98 | 1.33 | 16 | 0 |
|---|
| 1970 | 55 | 107 | 70.2 | 104 | 40.1 | 105 | 0.20 | 66 | 1 |
|---|
| 1969 | 59.8 | 81 | 73.9 | 90 | 45.6 | 61 | 1.26 | 18 | 0 |
|---|
| 1968 | 60.3 | 73 | 74.3 | 88 | 46.2 | 52 | 0.06 | 93 | 0 |
|---|
| 1967 | 64.3 | 22 | 82.2 | 17 | 46.4 | 49 | 0.14 | 75 | 0 |
|---|
| 1966 | 63.9 | 26 | 78.3 | 48 | 49.4 | 14 | 1.49 | 9 | 0 |
|---|
| 1965 | 56.8 | 101 | 71.1 | 103 | 42.5 | 94 | 0.01 | 100 | 0 |
|---|
| 1964 | 56.6 | 103 | 71.8 | 101 | 41.4 | 101 | 0.30 | 56 | 0 |
|---|
| 1963 | 64.9 | 16 | 81.7 | 18 | 48.2 | 26 | 0.61 | 33 | 0 |
|---|
| 1962 | 62.1 | 49 | 78.6 | 42 | 45.6 | 61 | 0.44 | 44 | 0 |
|---|
| 1961 | 57.3 | 97 | 72.2 | 100 | 42.3 | 95 | 0.06 | 93 | 0 |
|---|
| 1960 | 60.6 | 69 | 75.8 | 71 | 45.4 | 63 | 0.14 | 75 | 0 |
|---|
| 1959 | 56.4 | 104 | 69.4 | 106 | 43.7 | 86 | 2.71 | 3 | 1 |
|---|
| 1958 | 58.4 | 91 | 73.9 | 90 | 42.9 | 91 | 0.70 | 31 | 0 |
|---|
| 1957 | 63.2 | 35 | 79.5 | 36 | 46.9 | 44 | 0.14 | 75 | 0 |
|---|
| 1956 | 60.4 | 70 | 78.3 | 48 | 42.6 | 93 | 0.02 | 99 | 0 |
|---|
| 1955 | 60 | 77 | 75.6 | 73 | 44.4 | 80 | 0.46 | 41 | 0 |
|---|
| 1954 | 59.9 | 80 | 74.4 | 87 | 45.7 | 58 | 0.98 | 24 | 1 |
|---|
| 1952 | 62.4 | 48 | 78.4 | 47 | 46.4 | 49 | 0.40 | 47 | 0 |
|---|
| 1951 | 59.3 | 86 | 75 | 80 | 43.7 | 86 | 0.41 | 46 | 0 |
|---|
| 1950 | 60.8 | 65 | 78.7 | 41 | 42.3 | 95 | 0.09 | 89 | 2 |
|---|
| 1949 | 60.1 | 75 | 77 | 62 | 43.2 | 90 | 0.17 | 72 | 0 |
|---|
| 1948 | 57 | 100 | 72.8 | 97 | 41.2 | 102 | 1.28 | 17 | 0 |
|---|
| 1947 | 59.7 | 83 | 75.6 | 73 | 43.8 | 85 | 0.30 | 56 | 0 |
|---|
| 1946 | 58.3 | 93 | 73.7 | 93 | 42.9 | 91 | 0.19 | 68 | 0 |
|---|
| 1945 | 55.4 | 105 | 72.3 | 99 | 38.5 | 110 | 0.29 | 59 | 0 |
|---|
| 1944 | 64.4 | 20 | 80.5 | 28 | 48.3 | 23 | 1.83 | 5 | 0 |
|---|
| 1943 | 63.1 | 38 | 80.8 | 26 | 45.4 | 63 | 0.00 | 107 | 0 |
|---|
| 1942 | 63.8 | 28 | 80.4 | 30 | 47.2 | 39 | 0.00 | 107 | 0 |
|---|
| 1941 | 56.8 | 101 | 69.2 | 108 | 44.5 | 78 | 1.36 | 15 | 0 |
|---|
| 1940 | 67 | 7 | 82.7 | 11 | 51.3 | 6 | 1.01 | 22 | 0 |
|---|
| 1939 | 64.4 | 20 | 81.7 | 18 | 47 | 42 | 0.29 | 59 | 0 |
|---|
| 1938 | 67.6 | 6 | 84.6 | 4 | 50.7 | 10 | 0.56 | 36 | 0 |
|---|
| 1937 | 63.1 | 38 | 77.8 | 52 | 48.3 | 23 | 1.77 | 7 | 0 |
|---|
| 1936 | 60.7 | 66 | 77.1 | 60 | 44.4 | 80 | 0.14 | 75 | 0 |
|---|
| 1935 | 65.3 | 12 | 82.3 | 14 | 48.3 | 23 | 0.14 | 75 | 0 |
|---|
| 1934 | 59.1 | 88 | 74 | 89 | 44.1 | 83 | 0.53 | 37 | 0 |
|---|
| 1933 | 58.4 | 91 | 73.4 | 96 | 43.4 | 88 | 0.97 | 26 | 0 |
|---|
| 1932 | 62.8 | 42 | 80.5 | 28 | 45.1 | 65 | trace | 102 | 0 |
|---|
| 1931 | 61.6 | 55 | 75.6 | 73 | 47.6 | 37 | 0.49 | 40 | 0 |
|---|
| 1930 | 62.5 | 47 | 78.8 | 39 | 46.2 | 52 | 0.59 | 34 | 0 |
|---|
| 1929 | 58.8 | 89 | 76.6 | 64 | 41 | 103 | | | 1 |
|---|
| 1928 | 62 | 51 | 82.3 | 14 | 41.7 | 100 | | | 0 |
|---|
| 1927 | 60 | 77 | 75 | 80 | 45 | 67 | 2.87 | 2 | 0 |
|---|
| 1926 | 57.1 | 99 | 74.5 | 86 | 39.7 | 108 | 1.41 | 12 | 0 |
|---|
| 1925 | 63.6 | 30 | 81.7 | 18 | 45.9 | 56 | 0.27 | 63 | 3 |
|---|
| 1924 | 62.7 | 44 | 81.6 | 21 | 44.3 | 82 | 0.86 | 27 | 2 |
|---|
| 1923 | | | 84.3 | 5 | 44.9 | 71 | 0.28 | 62 | 4 |
|---|
| 1922 | 65.2 | 14 | 83.5 | 10 | 46.9 | 44 | 0.37 | 51 | 0 |
|---|
| 1921 | 57.3 | 97 | 74.6 | 85 | 40 | 106 | 0.32 | 55 | 0 |
|---|
| 1920 | 63.1 | 38 | 77.8 | 52 | 48.4 | 21 | 0.99 | 23 | 0 |
|---|
| 1919 | | | | | 44.6 | 74 | 1.37 | 14 | 7 |
|---|
| 1918 | 68.7 | 2 | 89.8 | 1 | 47.7 | 35 | trace | 102 | 3 |
|---|
| 1917 | 63.9 | 26 | 81 | 25 | 46.9 | 44 | 0.20 | 66 | 0 |
|---|
| 1916 | 62 | 51 | 79.6 | 34 | 44.5 | 78 | 0.11 | 85 | 0 |
|---|
| 1915 | 61.3 | 61 | 78.5 | 44 | 44.1 | 83 | 0.36 | 52 | 0 |
|---|
| 1914 | 57.8 | 96 | 73.9 | 90 | 41.8 | 99 | 1.17 | 20 | 0 |
|---|
| 1913 | 60.1 | 75 | 79.6 | 34 | 40.6 | 104 | 0.38 | 50 | 0 |
|---|
| 1912 | 58 | 95 | 76.1 | 66 | 39.9 | 107 | 0.19 | 68 | 0 |
|---|
| 1911 | 60.4 | 70 | 75.1 | 78 | 45.7 | 58 | 0.15 | 73 | 0 |
|---|
| 1910 | 62.6 | 45 | 79.7 | 33 | 45.7 | 58 | 0.51 | 39 | 2 |
|---|
| 1909 | | | | | | | 0.39 | 49 | 30 |
|---|