Every 1 to 10 October in Jerome, ID from 1915 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 | 64.6 | 1 | 80.5 | 10 | 48.7 | 1 | trace | 71 | 0 |
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| 2025 | 56.7 | 38 | 68.1 | 62 | 45.2 | 8 | 0.10 | 45 | 0 |
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| 2024 | 61.3 | 12 | 77.6 | 18 | 44.9 | 11 | trace | 71 | 0 |
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| 2023 | 56.7 | 38 | 67.2 | 67 | 46.2 | 6 | 0.85 | 11 | 0 |
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| 2022 | 60 | 16 | 74.8 | 26 | 45.2 | 8 | 0.00 | 84 | 0 |
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| 2021 | 57.2 | 33 | 70 | 52 | 44.4 | 16 | 1.10 | 5 | 0 |
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| 2020 | 61.8 | 5 | 78.1 | 17 | 45.5 | 7 | 0.29 | 34 | 0 |
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| 2019 | 44.8 | 105 | 57.7 | 105 | 31.9 | 105 | 0.03 | 61 | 0 |
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| 2018 | 52.2 | 69 | 61.6 | 94 | 42.8 | 23 | 1.00 | 6 | 0 |
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| 2017 | 46.7 | 100 | 58.1 | 104 | 35.2 | 90 | 0.37 | 27 | 0 |
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| 2016 | 53.4 | 65 | 66.1 | 72 | 40.7 | 43 | 0.02 | 64 | 0 |
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| 2015 | 61.4 | 11 | 74.2 | 31 | 48.5 | 2 | 0.34 | 30 | 0 |
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| 2014 | 56.6 | 40 | 72 | 44 | 41.2 | 39 | 0.00 | 84 | 0 |
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| 2013 | 46.6 | 101 | 58.6 | 103 | 34.5 | 94 | 0.02 | 64 | 0 |
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| 2012 | 50.6 | 81 | 65.5 | 76 | 35.6 | 89 | 0.00 | 84 | 0 |
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| 2011 | 54.5 | 59 | 64.2 | 80 | 44.7 | 14 | 0.97 | 7 | 0 |
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| 2010 | 59.8 | 17 | 72.3 | 42 | 47.2 | 4 | 0.31 | 33 | 0 |
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| 2009 | 40.7 | 106 | 51 | 107 | 30.3 | 108 | 0.69 | 16 | 0 |
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| 2008 | 52.2 | 69 | 62.7 | 89 | 41.6 | 33 | 0.51 | 19 | 0 |
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| 2007 | 48.9 | 92 | 60.4 | 99 | 37.4 | 75 | 0.90 | 9 | 0 |
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| 2006 | 54.6 | 56 | 65 | 78 | 44.2 | 17 | 0.64 | 18 | 0 |
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| 2005 | 48.3 | 96 | 60.7 | 98 | 35.9 | 84 | 0.06 | 52 | 0 |
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| 2004 | 58.9 | 24 | 73.1 | 39 | 44.6 | 15 | trace | 71 | 0 |
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| 2003 | 61.7 | 6 | 74.8 | 26 | 48.5 | 2 | 0.03 | 61 | 0 |
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| 2002 | 50.8 | 79 | 62.8 | 88 | 38.8 | 64 | 0.04 | 56 | 0 |
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| 2001 | 55.6 | 45 | 69.4 | 56 | 41.7 | 30 | trace | 71 | 0 |
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| 2000 | | | | | | | | | 2 |
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| 1999 | 55.2 | 51 | 69.7 | 53 | 40.6 | 44 | trace | 71 | 0 |
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| 1998 | 51 | 78 | 63.9 | 81 | 38.1 | 70 | trace | 71 | 0 |
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| 1997 | 54.7 | 54 | 70.8 | 49 | 38.6 | 68 | 0.15 | 41 | 0 |
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| 1996 | | | 83 | 2 | | | 0.00 | 84 | 2 |
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| 1995 | 48.6 | 93 | 63.7 | 83 | 33.5 | 98 | 0.24 | 39 | 0 |
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| 1994 | 51.4 | 77 | 63.3 | 84 | 39.4 | 58 | 1.56 | 3 | 0 |
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| 1993 | 56.8 | 37 | 73.5 | 34 | 41.7 | 30 | 0.14 | 43 | 1 |
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| 1992 | 57 | 34 | 72.9 | 40 | 41.1 | 40 | 0.04 | 56 | 0 |
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| 1991 | 58.4 | 26 | 75.3 | 22 | 41.4 | 37 | 0.00 | 84 | 0 |
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| 1990 | 51.6 | 76 | 67.2 | 67 | 35.9 | 84 | 0.13 | 44 | 0 |
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| 1989 | 50.5 | 82 | 63.1 | 87 | 37.8 | 72 | 0.77 | 13 | 0 |
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| 1988 | 64.1 | 2 | 83.3 | 1 | 44.9 | 11 | 0.00 | 84 | 0 |
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| 1987 | 61.7 | 6 | 79.6 | 13 | 43.7 | 19 | 0.00 | 84 | 0 |
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| 1986 | 51.8 | 75 | 67.1 | 69 | 36.5 | 80 | 0.04 | 56 | 0 |
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| 1985 | 47.4 | 99 | 61.4 | 96 | 33.3 | 99 | 0.27 | 35 | 0 |
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| 1984 | 57.9 | 29 | 74 | 33 | 41.9 | 28 | 0.02 | 64 | 1 |
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| 1983 | 54.6 | 56 | 67.8 | 64 | 41.3 | 38 | | | 0 |
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| 1982 | 44.9 | 103 | 59.6 | 100 | 31.1 | 107 | 0.09 | 46 | 1 |
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| 1981 | 50.1 | 88 | 65.2 | 77 | 34.9 | 92 | 0.26 | 37 | 1 |
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| 1980 | 61.5 | 9 | 80.2 | 11 | 42.7 | 25 | 0.00 | 84 | 0 |
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| 1979 | 61.5 | 9 | 81.4 | 6 | 41.5 | 34 | 0.00 | 84 | 0 |
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| 1978 | 55.4 | 50 | 74.4 | 29 | 36.4 | 81 | 0.00 | 84 | 0 |
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| 1977 | 49.8 | 89 | 66.6 | 71 | 33 | 102 | 0.00 | 84 | 0 |
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| 1976 | 55.6 | 45 | 70.6 | 51 | 40.5 | 47 | 0.35 | 28 | 0 |
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| 1975 | 58 | 28 | 74.1 | 32 | 41.8 | 29 | 0.34 | 30 | 0 |
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| 1974 | 55.5 | 48 | 71.6 | 46 | 39.4 | 58 | 0.41 | 24 | 0 |
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| 1973 | 50.2 | 87 | 64.6 | 79 | 35.8 | 87 | trace | 71 | 0 |
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| 1972 | 55.6 | 45 | 69 | 59 | 42.2 | 27 | 1.11 | 4 | 0 |
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| 1971 | 56.4 | 43 | 72.2 | 43 | 40.6 | 44 | 0.04 | 56 | 0 |
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| 1970 | 54.3 | 61 | 68.9 | 60 | 39.7 | 52 | 0.02 | 64 | 0 |
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| 1969 | 49.6 | 91 | 63.2 | 86 | 35.9 | 84 | 0.15 | 41 | 0 |
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| 1968 | 52.7 | 68 | 69.3 | 57 | 36.1 | 83 | 0.00 | 84 | 0 |
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| 1967 | 54.3 | 61 | 69.1 | 58 | 39.4 | 58 | 0.08 | 47 | 0 |
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| 1966 | 54.6 | 56 | 71.8 | 45 | 37.4 | 75 | trace | 71 | 0 |
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| 1965 | 61.3 | 12 | 81 | 8 | 41.5 | 34 | 0.00 | 84 | 0 |
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| 1964 | 57.6 | 32 | 75.6 | 21 | 39.6 | 54 | 0.07 | 50 | 0 |
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| 1963 | 63.8 | 3 | 80.6 | 9 | 46.9 | 5 | 0.02 | 64 | 0 |
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| 1962 | 54 | 64 | 68.9 | 60 | 39.1 | 61 | 0.01 | 69 | 0 |
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| 1961 | 50.8 | 79 | 67.6 | 65 | 34 | 96 | trace | 71 | 0 |
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| 1960 | 56.5 | 41 | 72.8 | 41 | 40.2 | 51 | 0.27 | 35 | 0 |
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| 1959 | 49.8 | 89 | 62.1 | 90 | 37.5 | 74 | 0.48 | 21 | 0 |
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| 1958 | 56.5 | 41 | 73.4 | 36 | 39.5 | 57 | 0.00 | 84 | 0 |
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| 1957 | 51.9 | 74 | 66.1 | 72 | 37.7 | 73 | 0.32 | 32 | 0 |
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| 1956 | 58.1 | 27 | 75.3 | 22 | 40.8 | 42 | 0.06 | 52 | 0 |
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| 1955 | 55.5 | 48 | 74.6 | 28 | 36.3 | 82 | 0.07 | 50 | 0 |
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| 1954 | | | | | | | 0.00 | 84 | 2 |
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| 1953 | 59.5 | 21 | 80.2 | 11 | 38.8 | 64 | 0.00 | 84 | 0 |
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| 1952 | 59.8 | 17 | 81.3 | 7 | 38.2 | 69 | 0.00 | 84 | 0 |
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| 1951 | 54.7 | 54 | 69.7 | 53 | 39.7 | 52 | 0.41 | 24 | 0 |
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| 1950 | 52 | 73 | 69.7 | 53 | 34.3 | 95 | 0.03 | 61 | 0 |
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| 1949 | 47.7 | 97 | 63.9 | 81 | 31.6 | 106 | 0.42 | 23 | 1 |
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| 1948 | | | | | 32.3 | 104 | 0.08 | 47 | 2 |
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| 1947 | 59.2 | 22 | 73.5 | 34 | 44.9 | 11 | 0.25 | 38 | 0 |
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| 1946 | 44.9 | 103 | 54 | 106 | 35.8 | 87 | 1.75 | 2 | 0 |
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| 1945 | 58.9 | 24 | 78.2 | 16 | 39.6 | 54 | 0.00 | 84 | 0 |
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| 1944 | 56.9 | 35 | 75 | 24 | 38.8 | 64 | 0.01 | 69 | 0 |
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| 1943 | 63.2 | 4 | 82.4 | 3 | 44 | 18 | trace | 71 | 0 |
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| 1942 | 61.6 | 8 | 81.7 | 5 | 41.5 | 34 | 0.00 | 84 | 0 |
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| 1941 | 48.5 | 94 | 63.3 | 84 | 33.7 | 97 | 0.06 | 52 | 0 |
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| 1940 | 50.4 | 85 | 66 | 74 | 34.8 | 93 | 0.40 | 26 | 0 |
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| 1939 | 50.5 | 82 | 61.3 | 97 | 39.6 | 54 | 0.88 | 10 | 0 |
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| 1938 | 56.9 | 35 | 70.7 | 50 | 43.1 | 22 | 0.65 | 17 | 0 |
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| 1937 | 53.2 | 66 | 73.3 | 37 | 33.1 | 101 | 0.00 | 84 | 0 |
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| 1936 | 57.8 | 31 | 76.9 | 19 | 38.7 | 67 | 0.00 | 84 | 0 |
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| 1935 | 61.3 | 12 | 78.9 | 14 | 43.7 | 19 | 0.00 | 84 | 0 |
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| 1934 | 59.7 | 19 | 78.4 | 15 | 41.1 | 40 | trace | 71 | 1 |
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| 1933 | 61.2 | 15 | 81.8 | 4 | 40.5 | 47 | 0.00 | 84 | 0 |
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| 1932 | 56 | 44 | 71.4 | 48 | 40.5 | 47 | 0.04 | 56 | 0 |
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| 1931 | 54.4 | 60 | 71.5 | 47 | 37.2 | 77 | 0.05 | 55 | 0 |
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| 1930 | 52.8 | 67 | 61.6 | 94 | 42.8 | 23 | 0.70 | 15 | 1 |
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| 1929 | 57.9 | 29 | 75 | 24 | 40.6 | 44 | 0.46 | 22 | 1 |
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| 1928 | | | | | 39 | 63 | 0.08 | 47 | 2 |
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| 1927 | 47.7 | 97 | 62.1 | 90 | 33.2 | 100 | 0.00 | 84 | 0 |
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| 1926 | 52.1 | 72 | 67.4 | 66 | 36.8 | 79 | trace | 71 | 0 |
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| 1925 | 50.4 | 85 | 65.6 | 75 | 35.1 | 91 | 0.22 | 40 | 0 |
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| 1924 | 50.5 | 82 | 61.8 | 92 | 39.1 | 61 | 0.72 | 14 | 0 |
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| 1923 | 52.2 | 69 | 61.7 | 93 | 42.7 | 25 | 1.76 | 1 | 0 |
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| 1922 | 59 | 23 | 76.2 | 20 | 41.7 | 30 | 0.00 | 84 | 0 |
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| 1921 | 55.1 | 53 | 73.2 | 38 | 36.9 | 78 | 0.00 | 84 | 0 |
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| 1920 | 59.7 | 19 | 74.3 | 30 | 45.1 | 10 | 0.82 | 12 | 0 |
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| 1919 | 46.2 | 102 | 59.3 | 101 | 33 | 102 | 0.49 | 20 | 0 |
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| 1918 | 55.2 | 51 | 67 | 70 | 43.4 | 21 | 0.35 | 28 | 0 |
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| 1916 | 48.5 | 94 | 59.1 | 102 | 37.9 | 71 | 0.97 | 7 | 0 |
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| 1915 | 54.2 | 63 | 68 | 63 | 40.4 | 50 | trace | 71 | 0 |
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