| Year | Temperature |
|---|---|
| 2024 | -14 °F |
| 2023 | 7 °F |
| 2022 | -3 °F |
| 2021 | 0 °F |
| 2020 | 14 °F |
| 2019 | 7 °F |
| 2018 | 19 °F |
| 2017 | -6 °F |
| 2016 | 1 °F |
| 2015 | 13 °F |
| 2014 | 4 °F |
| 2013 | 3 °F |
| 2012 | 18 °F |
| 2011 | 10 °F |
| 2010 | -2 °F |
| 2009 | 5 °F |
| 2008 | -3 °F |
| 2007 | 8 °F |
| 2006 | 11 °F |
| 2005 | 11 °F |
| 2004 | -12 °F |
| 2003 | 10 °F |
| 2002 | 15 °F |
| 2001 | 23 °F |
| 2000 | 17 °F |
| 1999 | 24 °F |
| 1994 | 9 °F |
| 1993 | -4 °F |
| 1992 | 15 °F |
| 1991 | 15 °F |
| 1990 | -14 °F |
| 1989 | -13 °F |
| 1988 | 8 °F |
| 1987 | 5 °F |
| 1986 | 15 °F |
| 1985 | -11 °F |
| 1984 | 1 °F |
| 1983 | -15 °F |
| 1982 | -1 °F |
| 1981 | 15 °F |
| 1980 | 4 °F |
| 1979 | -7 °F |
| 1978 | -6 °F |
| 1977 | -2 °F |
| 1976 | 11 °F |
| 1975 | 11 °F |
| 1974 | -10 °F |
| 1973 | -7 °F |
| 1972 | -9 °F |
| 1971 | 13 °F |
| 1970 | 12 °F |
| 1969 | -5 °F |
| 1968 | -24 °F |
| 1967 | 5 °F |
| 1966 | 20 °F |
| 1965 | 16 °F |
| 1964 | -7 °F |
| 1963 | -3 °F |
| 1962 | -4 °F |
| 1961 | 1 °F |
| 1960 | 7 °F |
| 1959 | -2 °F |
| 1958 | 15 °F |
| 1957 | -18 °F |
| 1956 | -9 °F |
| 1955 | -4 °F |
| 1954 | -7 °F |
| 1953 | 24 °F |
| 1952 | 7 °F |
| 1951 | 1 °F |
| 1950 | -16 °F |
| 1949 | -5 °F |
| Years | Station | Coordinates |
|---|---|---|
| 1949–2024 | Walla Walla Regional Airport | location |