Every July in Challis, ID from 1897 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 | 72 | 11 | 89.7 | 20 | 54.3 | 6 | 0.50 | 50 | 0 |
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| 2025 | 69.9 | 29 | 87.9 | 38 | 51.9 | 29 | 0.46 | 56 | 0 |
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| 2024 | 72.2 | 8 | 90.7 | 12 | 53.7 | 12 | 0.37 | 65 | 2 |
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| 2023 | 71.4 | 15 | 91.1 | 8 | 51.6 | 33 | 0.10 | 90 | 0 |
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| 2022 | 71.8 | 12 | 91 | 10 | 52.7 | 22 | 0.20 | 80 | 0 |
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| 2021 | 74 | 1 | 91.7 | 4 | 56.3 | 2 | 0.66 | 40 | 0 |
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| 2020 | 68.5 | 52 | 86.6 | 51 | 50.3 | 64 | 0.32 | 72 | 0 |
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| 2019 | 69.8 | 31 | 88.1 | 36 | 51.5 | 37 | 0.34 | 69 | 0 |
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| 2018 | 73.8 | 2 | 93.7 | 1 | 53.8 | 11 | trace | 108 | 0 |
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| 2017 | 71 | 22 | 90.6 | 13 | 51.5 | 37 | 0.34 | 69 | 0 |
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| 2016 | 67.9 | 66 | 87.5 | 40 | 48.3 | 93 | 0.02 | 101 | 0 |
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| 2015 | 66.7 | 80 | 83 | 87 | 50.3 | 64 | 0.98 | 22 | 2 |
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| 2014 | 72.1 | 10 | 90.6 | 13 | 53.5 | 14 | 0.04 | 98 | 0 |
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| 2013 | 71.3 | 16 | 90.6 | 13 | 52 | 28 | 0.54 | 47 | 0 |
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| 2012 | 70.7 | 24 | 89.7 | 20 | 51.7 | 32 | 0.27 | 76 | 0 |
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| 2011 | 67.9 | 66 | 87.2 | 43 | 48.5 | 90 | 1.08 | 12 | 0 |
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| 2010 | 65.8 | 90 | 84.3 | 78 | 47.3 | 102 | 0.51 | 49 | 0 |
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| 2009 | 67.7 | 69 | 85 | 69 | 50.5 | 58 | 0.50 | 50 | 0 |
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| 2008 | 69.3 | 41 | 88.5 | 31 | 50.2 | 67 | 0.21 | 79 | 0 |
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| 2007 | 73.1 | 4 | 91.9 | 3 | 54.3 | 6 | 1.05 | 15 | 0 |
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| 2006 | 72.3 | 7 | 90.8 | 11 | 53.7 | 12 | 0.28 | 75 | 0 |
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| 2005 | 69.9 | 29 | 89 | 26 | 50.9 | 50 | 0.04 | 98 | 0 |
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| 2004 | 67.5 | 71 | 84.7 | 72 | 50.2 | 67 | 0.81 | 30 | 0 |
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| 2003 | 72.4 | 6 | 92.2 | 2 | 52.7 | 22 | 0.02 | 101 | 0 |
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| 2002 | | | | | | | 0.26 | 77 | 4 |
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| 2001 | 68.1 | 59 | 84.7 | 72 | 51.9 | 29 | 0.48 | 55 | 1 |
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| 2000 | | | | | | | 0.02 | 101 | 6 |
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| 1999 | 67.5 | 71 | 87.1 | 45 | 47.9 | 99 | 0.01 | 106 | 0 |
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| 1995 | | | | | 50.9 | 50 | 1.40 | 7 | 9 |
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| 1994 | | | | | 52.8 | 19 | 0.78 | 32 | 7 |
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| 1993 | | | | | 45.5 | 106 | 0.71 | 35 | 6 |
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| 1992 | 65.4 | 91 | 80.9 | 98 | 49.9 | 73 | | | 0 |
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| 1991 | 70.9 | 23 | 88.8 | 28 | 53 | 17 | 0.49 | 52 | 1 |
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| 1990 | 69.3 | 41 | 85.8 | 62 | 53 | 17 | 1.46 | 5 | 1 |
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| 1989 | 71.6 | 14 | 89.7 | 20 | 53.5 | 14 | 0.70 | 36 | 0 |
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| 1988 | 72.2 | 8 | 89.5 | 25 | 54.9 | 3 | 0.02 | 101 | 0 |
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| 1987 | 64.4 | 97 | 78.8 | 105 | 50 | 71 | 1.41 | 6 | 0 |
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| 1986 | 64.7 | 96 | 80.2 | 100 | 49.1 | 83 | 0.18 | 82 | 0 |
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| 1985 | 73.4 | 3 | 89.7 | 20 | 57.1 | 1 | 1.13 | 11 | 0 |
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| 1984 | 68.8 | 49 | 83.6 | 81 | 54 | 9 | 1.16 | 9 | 0 |
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| 1983 | | | 81.3 | 96 | 50.7 | 53 | 2.58 | 1 | 5 |
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| 1982 | 65.3 | 92 | 79.9 | 102 | 50.7 | 53 | 1.16 | 9 | 0 |
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| 1981 | 68 | 63 | 85.5 | 64 | 50.5 | 58 | 0.14 | 86 | 0 |
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| 1980 | 68.1 | 59 | 84.6 | 74 | 51.5 | 37 | 0.59 | 45 | 0 |
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| 1978 | 66.2 | 85 | 82.7 | 89 | 49.8 | 76 | 0.60 | 44 | 1 |
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| 1977 | 66.3 | 84 | 81.8 | 94 | 50.9 | 50 | 1.47 | 4 | 1 |
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| 1976 | 69.6 | 36 | 87.4 | 41 | 51.8 | 31 | 0.37 | 65 | 0 |
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| 1975 | 71.2 | 18 | 88 | 37 | 54.4 | 5 | 1.03 | 18 | 0 |
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| 1974 | 69.3 | 41 | 88.4 | 32 | 50.2 | 67 | 0.07 | 96 | 0 |
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| 1973 | 68.5 | 52 | 86.6 | 51 | 50.4 | 62 | 0.56 | 46 | 0 |
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| 1972 | 69.4 | 39 | 87.2 | 43 | 51.6 | 33 | 0.33 | 71 | 1 |
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| 1971 | 68.3 | 54 | 85.4 | 66 | 51.2 | 41 | 0.35 | 68 | 0 |
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| 1970 | 69.5 | 38 | 86.4 | 53 | 52.5 | 25 | 0.79 | 31 | 0 |
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| 1969 | 68 | 63 | 85.5 | 64 | 50.6 | 56 | 0.82 | 28 | 0 |
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| 1968 | 69.8 | 31 | 88.6 | 30 | 51 | 46 | 0.19 | 81 | 0 |
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| 1967 | 71.2 | 18 | 89.8 | 17 | 52.7 | 22 | 1.07 | 13 | 0 |
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| 1966 | 70.6 | 25 | 91.4 | 5 | 49.9 | 73 | 0.00 | 111 | 0 |
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| 1965 | 67.3 | 74 | 84.9 | 70 | 49.5 | 77 | 0.49 | 52 | 1 |
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| 1964 | 71.2 | 18 | 91.2 | 7 | 51.3 | 40 | 0.16 | 84 | 0 |
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| 1963 | 67.7 | 69 | 86.8 | 48 | 48.5 | 90 | 0.02 | 101 | 0 |
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| 1962 | 66.4 | 82 | 84.6 | 74 | 48.1 | 96 | 0.38 | 64 | 0 |
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| 1961 | 71.3 | 16 | 89.8 | 17 | 52.8 | 19 | 0.14 | 86 | 0 |
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| 1960 | 73 | 5 | 91.4 | 5 | 54.5 | 4 | 0.29 | 74 | 0 |
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| 1959 | 70.5 | 26 | 89.8 | 17 | 51 | 46 | 0.01 | 106 | 1 |
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| 1958 | 66 | 88 | 82.7 | 89 | 49.3 | 81 | 0.40 | 63 | 0 |
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| 1957 | 67.9 | 66 | 86.3 | 54 | 49.5 | 77 | 0.44 | 58 | 0 |
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| 1956 | 68 | 63 | 85.3 | 67 | 50.6 | 56 | 0.18 | 82 | 1 |
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| 1955 | 66.2 | 85 | 82.1 | 91 | 50 | 71 | 1.17 | 8 | 1 |
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| 1954 | 69.4 | 39 | 86.2 | 58 | 52.5 | 25 | 1.75 | 3 | 1 |
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| 1953 | 69.6 | 36 | 88.2 | 35 | 51.1 | 42 | 0.09 | 92 | 0 |
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| 1952 | 66.4 | 82 | 83.6 | 81 | 49.1 | 83 | 0.94 | 24 | 0 |
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| 1951 | 66.9 | 78 | 85.6 | 63 | 48.1 | 96 | 0.62 | 43 | 0 |
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| 1950 | 67 | 77 | 82.9 | 88 | 51 | 46 | 0.05 | 97 | 0 |
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| 1949 | 68.1 | 59 | 86 | 60 | 50.2 | 67 | 0.46 | 56 | 0 |
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| 1948 | 65.3 | 92 | 82 | 93 | 48.6 | 89 | 0.24 | 78 | 2 |
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| 1947 | 68.1 | 59 | 86.7 | 49 | 49.5 | 77 | 0.10 | 90 | 0 |
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| 1946 | 68.3 | 54 | 84.9 | 70 | 51.6 | 33 | 0.73 | 34 | 0 |
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| 1945 | 68.2 | 57 | 85.9 | 61 | 50.5 | 58 | 0.64 | 41 | 0 |
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| 1944 | 63.8 | 101 | 80.2 | 100 | 47.5 | 101 | 0.99 | 20 | 1 |
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| 1943 | 66.5 | 81 | 84 | 79 | 49.1 | 83 | 0.99 | 20 | 0 |
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| 1942 | 68.3 | 54 | 86.7 | 49 | 49.9 | 73 | 0.09 | 92 | 0 |
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| 1941 | 67.1 | 75 | 83.1 | 86 | 51.1 | 42 | 1.83 | 2 | 0 |
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| 1940 | 69.2 | 44 | 86.3 | 54 | 52.1 | 27 | 0.87 | 27 | 0 |
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| 1939 | 69 | 47 | 86.3 | 54 | 51.6 | 33 | 0.64 | 41 | 0 |
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| 1938 | 66.2 | 85 | 82.1 | 91 | 50.4 | 62 | 0.98 | 22 | 0 |
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| 1937 | 70.2 | 27 | 86.3 | 54 | 54.1 | 8 | 1.06 | 14 | 0 |
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| 1936 | 71.2 | 18 | 88.9 | 27 | 53.9 | 10 | 0.31 | 73 | 1 |
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| 1935 | 67.5 | 71 | 86.2 | 58 | 48.9 | 88 | 0.12 | 89 | 0 |
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| 1934 | 69.1 | 45 | 87.1 | 45 | 51 | 46 | 0.15 | 85 | 0 |
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| 1933 | 71.7 | 13 | 90.1 | 16 | 53.3 | 16 | trace | 108 | 0 |
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| 1932 | 64.4 | 97 | 80.5 | 99 | 48.3 | 93 | 0.82 | 28 | 0 |
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| 1931 | 69.8 | 31 | 88.7 | 29 | 51.1 | 42 | 0.44 | 58 | 1 |
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| 1930 | 69.7 | 34 | 88.3 | 33 | 51.1 | 42 | 1.04 | 17 | 0 |
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| 1929 | 70 | 28 | 89.7 | 20 | 50.3 | 64 | 0.69 | 38 | 3 |
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| 1928 | 68.2 | 57 | 86.9 | 47 | 49.5 | 77 | 0.04 | 98 | 0 |
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| 1927 | 68.7 | 50 | 88.3 | 33 | 49.1 | 83 | 0.09 | 92 | 0 |
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| 1926 | | | | | | | 0.90 | 25 | 20 |
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| 1925 | 69 | 47 | 85.2 | 68 | 52.8 | 19 | 1.01 | 19 | 0 |
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| 1924 | 62.5 | 103 | 78.7 | 106 | 46.4 | 104 | 0.41 | 62 | 1 |
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| 1923 | 67.1 | 75 | 83.6 | 81 | 50.5 | 58 | 0.49 | 52 | 0 |
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| 1922 | 64.4 | 97 | 81.1 | 97 | 47.7 | 100 | 0.89 | 26 | 0 |
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| 1921 | 66 | 88 | 84 | 79 | 48 | 98 | 0.67 | 39 | 0 |
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| 1920 | 66.9 | 78 | 84.6 | 74 | 49.2 | 82 | 0.43 | 60 | 0 |
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| 1919 | 68.6 | 51 | 87.9 | 38 | 49 | 87 | 0.13 | 88 | 1 |
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| 1918 | 64.9 | 95 | 81.5 | 95 | 48.4 | 92 | 0.70 | 36 | 0 |
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| 1917 | 69.1 | 45 | 87.4 | 41 | 50.7 | 53 | 0.09 | 92 | 0 |
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| 1916 | 65 | 94 | 83.2 | 85 | 46.7 | 103 | 0.42 | 61 | 0 |
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| 1915 | 62.2 | 104 | 79.2 | 104 | 45.4 | 107 | 1.05 | 15 | 1 |
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| 1914 | 61.8 | 105 | 84.4 | 77 | 39.1 | 109 | 0.75 | 33 | 0 |
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| 1900 | 62.7 | 102 | 79.8 | 103 | 45.7 | 105 | trace | 108 | 0 |
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| 1899 | 69.7 | 34 | 91.1 | 8 | 48.3 | 93 | 0.36 | 67 | 0 |
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| 1897 | 64.3 | 100 | 83.5 | 84 | 45.2 | 108 | 0.52 | 48 | 0 |
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