| Year | Temperature |
|---|---|
| 2024 | 85 °F |
| 2023 | 94 °F |
| 2022 | 96 °F |
| 2021 | 96 °F |
| 2020 | 98 °F |
| 2019 | 97 °F |
| 2018 | 96 °F |
| 2017 | 95 °F |
| 2016 | 100 °F |
| 2015 | 94 °F |
| 2014 | 91 °F |
| 2013 | 96 °F |
| 2012 | 101 °F |
| 2011 | 106 °F |
| 2010 | 100 °F |
| 2009 | 94 °F |
| 2008 | 95 °F |
| 2007 | 95 °F |
| 2006 | 95 °F |
| 2005 | 97 °F |
| 2004 | 90 °F |
| 2003 | 92 °F |
| 2002 | 97 °F |
| 2001 | 98 °F |
| 2000 | 91 °F |
| 1999 | 97 °F |
| 1998 | 94 °F |
| 1997 | 95 °F |
| 1995 | 98 °F |
| 1994 | 95 °F |
| 1993 | 97 °F |
| 1991 | 97 °F |
| 1990 | 96 °F |
| 1989 | 91 °F |
| 1988 | 102 °F |
| 1987 | 96 °F |
| 1986 | 94 °F |
| 1985 | 94 °F |
| 1984 | 95 °F |
| 1978 | 95 °F |
| 1977 | 96 °F |
| 1976 | 92 °F |
| 1974 | 95 °F |
| 1973 | 95 °F |
| 1971 | 95 °F |
| 1970 | 93 °F |
| 1969 | 98 °F |
| 1968 | 97 °F |
| 1967 | 95 °F |
| 1966 | 99 °F |
| 1965 | 96 °F |
| 1964 | 98 °F |
| 1963 | 96 °F |
| 1962 | 99 °F |
| 1961 | 94 °F |
| 1960 | 95 °F |
| 1959 | 97 °F |
| 1958 | 92 °F |
| 1957 | 98 °F |
| 1956 | 98 °F |
| 1955 | 100 °F |
| 1954 | 99 °F |
| 1953 | 103 °F |
| 1952 | 102 °F |
| 1951 | 96 °F |
| 1950 | 94 °F |
| 1949 | 98 °F |
| 1948 | 103 °F |
| 1947 | 98 °F |
| 1946 | 97 °F |
| 1944 | 100 °F |
| 1943 | 98 °F |
| 1942 | 95 °F |
| 1941 | 99 °F |
| 1940 | 96 °F |
| 1939 | 97 °F |
| Years | Station | Coordinates |
|---|---|---|
| 1938–2024 | Lewistown | location |