Every February in Jerome, ID from 1916 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 | 40.1 | 5 | 49.9 | 9 | 30.3 | 5 | 0.84 | 51 | 0 |
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| 2025 | 32.8 | 52 | 39.4 | 71 | 26.1 | 30 | 1.77 | 10 | 0 |
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| 2024 | 37.1 | 21 | 44.9 | 30 | 29.2 | 9 | 1.22 | 33 | 0 |
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| 2023 | 28.5 | 83 | 37.4 | 79 | 19.7 | 80 | 0.32 | 92 | 0 |
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| 2022 | 24.2 | 98 | 32.2 | 103 | 16.2 | 93 | trace | 111 | 0 |
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| 2021 | 33.6 | 44 | 40.6 | 66 | 26.7 | 23 | 0.41 | 87 | 0 |
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| 2020 | 33.6 | 44 | 43.8 | 38 | 23.3 | 55 | 0.17 | 104 | 0 |
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| 2019 | 29.4 | 73 | 36.6 | 86 | 22.3 | 65 | 2.01 | 7 | 0 |
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| 2018 | 32.6 | 55 | 41.2 | 60 | 24 | 48 | 0.48 | 77 | 0 |
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| 2017 | | | | | | | 1.43 | 25 | 8 |
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| 2016 | 34.7 | 36 | 43.2 | 41 | 26.2 | 28 | 0.20 | 100 | 0 |
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| 2015 | 40.9 | 4 | 50.9 | 8 | 31 | 2 | 0.32 | 92 | 0 |
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| 2014 | 35.5 | 28 | 42.9 | 45 | 28 | 17 | 1.60 | 15 | 0 |
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| 2013 | 31.6 | 64 | 39.6 | 69 | 23.7 | 51 | 0.71 | 59 | 0 |
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| 2012 | 33.3 | 49 | 41.6 | 54 | 25 | 39 | 0.16 | 105 | 1 |
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| 2011 | 29.3 | 75 | 37.5 | 78 | 21.1 | 73 | 0.25 | 95 | 0 |
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| 2010 | 31.7 | 62 | 38.3 | 75 | 25.1 | 38 | 0.36 | 88 | 0 |
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| 2009 | 28.7 | 82 | 36.4 | 88 | 21 | 74 | 0.42 | 86 | 0 |
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| 2008 | 27 | 85 | 33.9 | 97 | 20.1 | 79 | 0.80 | 53 | 0 |
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| 2007 | 35.7 | 26 | 44.2 | 36 | 27.2 | 20 | 1.03 | 42 | 1 |
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| 2006 | 28.8 | 79 | 37 | 83 | 20.5 | 76 | 0.64 | 63 | 0 |
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| 2005 | 32.7 | 54 | 41.6 | 54 | 23.8 | 50 | 0.71 | 59 | 0 |
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| 2004 | 26.2 | 90 | 32 | 104 | 20.3 | 77 | 0.77 | 54 | 0 |
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| 2003 | 32.1 | 59 | 41.1 | 61 | 23 | 59 | 0.55 | 71 | 0 |
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| 2002 | 22.4 | 102 | 30.1 | 107 | 14.8 | 100 | 0.23 | 97 | 0 |
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| 2001 | 29 | 78 | 35.8 | 90 | 22.3 | 65 | 0.43 | 85 | 0 |
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| 2000 | 38 | 15 | 45.9 | 25 | 30.2 | 7 | 1.55 | 18 | 0 |
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| 1999 | 31.5 | 66 | 38.5 | 74 | 24.4 | 43 | 1.58 | 16 | 0 |
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| 1998 | | | 45.6 | 29 | | | 1.18 | 34 | 10 |
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| 1997 | 33.5 | 46 | 42.6 | 47 | 24.5 | 42 | 0.23 | 97 | 0 |
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| 1996 | 31.3 | 67 | 41.5 | 56 | 20.8 | 75 | 0.56 | 70 | 1 |
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| 1995 | 38.7 | 10 | 51.3 | 6 | 26.4 | 24 | 0.65 | 61 | 1 |
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| 1994 | 29.4 | 73 | 40.6 | 66 | 18.1 | 85 | 1.42 | 27 | 0 |
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| 1993 | 24 | 100 | 33 | 99 | 14.9 | 99 | 0.51 | 73 | 2 |
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| 1992 | 41.1 | 2 | 54.1 | 3 | 28.1 | 16 | 0.93 | 46 | 0 |
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| 1991 | 40.1 | 5 | 54.5 | 1 | 25.8 | 34 | 0.10 | 107 | 0 |
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| 1990 | 30.3 | 71 | 41 | 62 | 19.5 | 82 | 0.36 | 88 | 0 |
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| 1989 | 23.1 | 101 | 32.8 | 100 | 13.9 | 102 | 0.20 | 100 | 1 |
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| 1988 | 35.8 | 25 | 47 | 19 | 24.6 | 41 | 0.05 | 110 | 0 |
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| 1987 | 35.9 | 23 | 46.3 | 23 | 25.7 | 35 | 1.16 | 37 | 1 |
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| 1986 | 37.3 | 19 | 45.8 | 27 | 28.8 | 11 | 4.60 | 1 | 0 |
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| 1985 | 20.3 | 105 | 30.4 | 106 | 10.2 | 107 | 0.88 | 50 | 0 |
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| 1984 | 24.4 | 97 | 32.6 | 101 | 16.3 | 92 | 1.32 | 30 | 1 |
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| 1983 | 35.1 | 33 | 44.4 | 35 | 26.1 | 30 | 1.52 | 20 | 2 |
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| 1982 | 24.6 | 96 | 34.1 | 96 | 15.6 | 97 | 1.77 | 10 | 1 |
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| 1981 | 34.1 | 41 | 45.9 | 25 | 22.5 | 63 | 0.59 | 68 | 1 |
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| 1980 | 35.5 | 28 | 44.9 | 30 | 26.1 | 30 | 1.36 | 28 | 0 |
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| 1979 | 31.7 | 62 | 40.3 | 68 | 22.2 | 67 | 0.73 | 58 | 1 |
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| 1978 | 33.8 | 43 | 41.3 | 57 | 26.3 | 26 | 1.43 | 25 | 0 |
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| 1977 | 35.5 | 28 | 49.6 | 11 | 21.5 | 70 | 0.65 | 61 | 0 |
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| 1976 | 28.8 | 79 | 38.9 | 73 | 18.6 | 84 | 1.83 | 9 | 0 |
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| 1975 | 29.2 | 76 | 37.3 | 80 | 21.2 | 72 | 1.56 | 17 | 0 |
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| 1974 | 34 | 42 | 43.8 | 38 | 24.2 | 47 | 0.62 | 65 | 0 |
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| 1973 | 34.2 | 40 | 43.1 | 42 | 25.3 | 37 | 0.55 | 71 | 0 |
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| 1972 | 33.5 | 46 | 42 | 50 | 25 | 39 | 1.49 | 23 | 0 |
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| 1971 | 34.6 | 38 | 44.9 | 30 | 24.3 | 45 | 0.33 | 91 | 0 |
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| 1970 | 40.1 | 5 | 51.5 | 5 | 28.7 | 12 | 0.16 | 105 | 0 |
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| 1969 | 29.1 | 77 | 36.8 | 84 | 21.4 | 71 | 0.91 | 47 | 0 |
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| 1968 | 38 | 15 | 47.9 | 16 | 28.2 | 15 | 1.66 | 13 | 0 |
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| 1967 | 37.9 | 17 | 49.6 | 11 | 26.3 | 26 | 0.10 | 107 | 0 |
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| 1966 | 32.5 | 58 | 42.1 | 49 | 22.9 | 60 | 0.48 | 77 | 0 |
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| 1965 | 35.7 | 26 | 47.1 | 18 | 24.4 | 43 | 0.19 | 102 | 0 |
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| 1964 | 22.1 | 103 | 32.6 | 101 | 11.2 | 106 | 0.21 | 99 | 2 |
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| 1963 | 41.1 | 2 | 51.8 | 4 | 30.4 | 3 | 2.00 | 8 | 1 |
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| 1962 | 32 | 61 | 41 | 62 | 23.1 | 58 | 2.17 | 6 | 0 |
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| 1961 | 38.2 | 13 | 47.8 | 17 | 28.7 | 12 | 1.18 | 34 | 0 |
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| 1960 | 28.8 | 79 | 37.2 | 81 | 20.3 | 77 | 1.07 | 41 | 0 |
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| 1959 | 35.2 | 32 | 44.2 | 36 | 26.2 | 28 | 0.44 | 84 | 0 |
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| 1958 | 40.1 | 5 | 49.7 | 10 | 30.4 | 3 | 1.24 | 32 | 0 |
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| 1957 | 33.4 | 48 | 43.1 | 42 | 23.6 | 52 | 0.98 | 45 | 1 |
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| 1956 | 25.2 | 95 | 34.8 | 94 | 15.6 | 97 | 0.48 | 77 | 0 |
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| 1955 | 26.4 | 87 | 36.8 | 84 | 16.1 | 94 | 0.45 | 82 | 0 |
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| 1954 | 38.6 | 12 | 51 | 7 | 26.1 | 30 | 0.47 | 81 | 0 |
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| 1953 | 35 | 34 | 48 | 15 | 22 | 68 | 0.75 | 55 | 0 |
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| 1952 | 24.1 | 99 | 33.8 | 98 | 14.4 | 101 | 2.28 | 4 | 0 |
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| 1951 | 32.8 | 52 | 42.9 | 45 | 22.8 | 62 | 1.65 | 14 | 0 |
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| 1950 | 30.4 | 70 | 42 | 50 | 18.8 | 83 | 0.35 | 90 | 0 |
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| 1949 | 25.3 | 94 | 37.1 | 82 | 13.5 | 103 | 1.69 | 12 | 0 |
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| 1948 | 29.6 | 72 | 39.5 | 70 | 19.7 | 80 | 0.90 | 48 | 0 |
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| 1947 | 37.1 | 21 | 47 | 19 | 27.2 | 20 | 0.27 | 94 | 0 |
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| 1946 | 27.2 | 84 | 37.7 | 77 | 16.6 | 91 | 0.75 | 55 | 0 |
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| 1945 | 34.4 | 39 | 43.1 | 42 | 25.7 | 35 | 1.51 | 21 | 0 |
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| 1944 | 31.1 | 68 | 39.3 | 72 | 22.9 | 60 | 0.89 | 49 | 0 |
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| 1943 | 33 | 50 | 43.5 | 40 | 22.5 | 63 | 1.36 | 28 | 0 |
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| 1942 | 26.8 | 86 | 36 | 89 | 17.7 | 86 | 1.16 | 37 | 0 |
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| 1941 | 38.1 | 14 | 46.8 | 21 | 29.4 | 8 | 1.03 | 42 | 0 |
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| 1940 | 35.5 | 28 | 44.5 | 34 | 26.4 | 24 | 1.50 | 22 | 0 |
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| 1939 | 26.4 | 87 | 35.6 | 91 | 17.1 | 88 | 0.45 | 82 | 0 |
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| 1938 | 35.9 | 23 | 44.9 | 30 | 26.8 | 22 | 0.25 | 95 | 0 |
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| 1937 | 26.1 | 91 | 35.4 | 92 | 16.8 | 89 | 2.34 | 3 | 0 |
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| 1936 | 25.9 | 92 | 34.4 | 95 | 17.4 | 87 | 1.53 | 19 | 0 |
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| 1935 | 32.6 | 55 | 41.3 | 57 | 23.9 | 49 | 0.51 | 73 | 0 |
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| 1934 | 43.1 | 1 | 54.2 | 2 | 31.9 | 1 | 1.12 | 39 | 0 |
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| 1933 | 18.3 | 106 | 29 | 108 | 7.6 | 108 | 1.03 | 42 | 0 |
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| 1932 | 26.3 | 89 | 36.5 | 87 | 16.1 | 94 | 0.64 | 63 | 0 |
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| 1931 | | | 42 | 50 | | | 0.61 | 66 | 3 |
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| 1930 | 39.3 | 9 | 48.2 | 14 | 30.3 | 5 | 0.75 | 55 | 0 |
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| 1929 | 21 | 104 | 30.6 | 105 | 11.3 | 105 | 0.59 | 68 | 0 |
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| 1928 | 32.9 | 51 | 42.3 | 48 | 23.4 | 53 | 0.19 | 102 | 0 |
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| 1927 | 34.9 | 35 | 41.9 | 53 | 27.8 | 19 | 2.50 | 2 | 0 |
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| 1926 | 37.4 | 18 | 45.8 | 27 | 29 | 10 | 0.82 | 52 | 0 |
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| 1925 | 37.2 | 20 | 46.5 | 22 | 27.9 | 18 | 0.51 | 73 | 0 |
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| 1924 | 38.7 | 10 | 48.7 | 13 | 28.7 | 12 | 1.17 | 36 | 0 |
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| 1923 | | | | | 13.4 | 104 | 0.10 | 107 | 14 |
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| 1922 | | | | | 16.7 | 90 | 0.60 | 67 | 13 |
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| 1921 | 32.1 | 59 | 40.7 | 65 | 23.4 | 53 | 1.10 | 40 | 2 |
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| 1920 | 34.7 | 36 | 46.1 | 24 | 23.3 | 55 | 0.48 | 77 | 0 |
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| 1919 | 30.7 | 69 | 38.1 | 76 | 23.3 | 55 | 1.47 | 24 | 1 |
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| 1918 | 31.6 | 64 | 41.3 | 57 | 21.9 | 69 | 0.49 | 76 | 0 |
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| 1917 | 25.4 | 93 | 35.1 | 93 | 15.7 | 96 | 1.31 | 31 | 0 |
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| 1916 | 32.6 | 55 | 41 | 62 | 24.3 | 45 | 2.20 | 5 | 0 |
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