Average Summer Temperatures (Jun,Jul,Aug) Boise, Idaho for the 146 season period 1864 through 2011 (missing data for 1866, 1867) normal(1981-10) = 72.7 F degrees RANK RANK AMONG AMONG DATA YEAR COLDEST WARMEST 65.2 1993 w+ 1 146 67.0 1895 2 tie 67.0 1907 w tie 144 67.6 1881 4 tie 67.6 1980 tie 142 67.7 1916 c+ 6 141 67.8 1912 w 7 tie 67.8 1976 w+ tie 139 67.9 1944 w- 9 138 68.1 1902 w- 10 137 68.2 1880 11 tie 68.2 1899 w tie 135 68.3 1892 13 tie 68.3 1893 tie tie 68.3 1953 w+ tie tie 68.3 1954 c- tie 131 68.6 1943 17 130 68.8 1908 18 129 68.9 1964 c+ 19 128 69.0 1887 20 tie 69.0 1890 tie tie 69.0 1891 tie 125 69.1 1948 w- 23 tie 69.1 1978 c tie 123 69.3 1983 w- 25 122 69.4 1962 c- 26 121 69.5 1911 w+ 27 tie 69.5 1913 w tie tie 69.5 1981 c+ tie tie 69.5 1982 w+ tie tie 69.5 1995 tie 116 69.7 1941 w+ 32 tie 69.7 1947 c tie tie 69.7 1965 w+ tie 113 69.8 1894 35 tie 69.8 1900 c+ tie tie 69.8 1942 c- tie tie 69.8 1945 c+ tie tie 69.8 1956 c+ tie 108 69.9 1885 40 tie 69.9 1950 c+ tie tie 69.9 1963 w tie 105 70.0 1884 43 tie 70.0 1957 w- tie 103 70.1 1888 45 tie 70.1 1897 tie tie 70.1 1951 w+ tie tie 70.1 1966 tie 99 70.2 1909 c+ 49 tie 70.2 1915 c tie tie 70.2 1928 tie tie 70.2 1952 c- tie 95 70.3 1879 53 tie 70.3 1910 c+ tie tie 70.3 1914 w+ tie tie 70.3 1932 tie 91 70.4 1905 w+ 57 tie 70.4 1923 w+ tie tie 70.4 1924 c+ tie 88 70.5 1901 c+ 60 tie 70.5 1969 w tie tie 70.5 1984 tie tie 70.5 1987 w+ tie 84 70.6 1904 w- 64 83 70.7 1979 c 65 82 70.8 1877 66 tie 70.8 1920 c tie tie 70.8 1935 tie 79 70.9 1927 69 tie 70.9 1955 c+ tie tie 70.9 1975 c+ tie 76 71.0 1903 c- 72 75 71.1 1946 w+ 73 74 71.2 1882 74 tie 71.2 1939 c- tie tie 71.2 1949 w tie 71 71.3 1917 c+ 77 tie 71.3 1938 c+ tie tie 71.3 1968 c tie 68 71.4 1876 80 tie 71.4 1937 tie tie 71.4 1985 tie 65 71.5 1898 c 83 tie 71.5 1959 w- tie tie 71.5 1997 w+ tie 62 71.6 1918 w 86 tie 71.6 1991 w tie 60 71.7 1883 88 tie 71.7 1889 tie tie 71.7 1925 w+ tie tie 71.7 1930 w- tie tie 71.7 1992 w tie tie 71.7 1999 c- tie 54 71.8 1989 c 94 53 71.9 1886 95 tie 71.9 1972 w+ tie 51 72.0 1896 w+ 97 tie 72.0 1929 tie tie 72.0 1958 c- tie tie 72.0 2010 tie 47 72.1 1919 w+ 101 tie 72.1 1921 c- tie tie 72.1 1973 c+ tie 44 72.2 1934 w- 104 tie 72.2 1977 w+ tie 42 72.3 1988 c+ 106 41 72.4 1974 c+ 107 tie 72.4 1990 tie 39 72.5 1986 109 38 72.7 1971 c 110 tie 72.7 2011 tie 36 72.8 1996 112 35 72.9 1878 113 tie 72.9 1940 w+ tie tie 72.9 1960 c tie 32 73.0 1933 116 31 73.1 1998 117 tie 73.1 2005 tie 29 73.2 1868 119 28 73.3 1926 w- 120 27 73.4 1922 121 tie 73.4 2001 tie tie 73.4 2002 w- tie 24 73.5 2000 c+ 124 tie 73.5 2008 tie 22 73.6 1931 c+ 126 21 73.7 1864 127 tie 73.7 1906 c+ tie tie 73.7 1970 c- tie tie 73.7 1994 w+ tie 17 73.8 2009 w- 131 16 74.0 1872 132 15 74.1 2004 w- 133 14 74.2 1936 134 tie 74.2 1967 c- tie 12 74.7 1873 136 11 74.8 1874 137 10 74.9 1870 138 9 75.2 1871 139 8 75.5 1875 140 tie 75.5 2006 tie 6 75.7 1961 142 5 75.9 2003 143 4 76.4 2007 144 3 76.6 1869 145 2 76.8 1865 146 1 9/1/2011 c = la nina w = el nino weak c- or w- moderate c or w strong c+ or w+ average summer temperatures at boise, all sites.txt