Average Temperatures for December at Boise, Idaho for the 148-year period 1864 through 2011 normal (1981-10) = 30.7 F degrees RANK RANK AMONG AMONG DATA YEAR COLDEST WARMEST 12.6 1985 1 148 18.1 1990 w+ 2 147 20.4 1865 3 146 21.8 1924 w- 4 145 22.9 1984 5 144 23.2 1983 w+ 6 143 23.6 1919 w+ 7 142 23.8 1972 c- 8 141 23.9 1930 c+ 9 140 24.0 1914 w- 10 139 24.6 1870 11 138 25.4 1864 12 tie 25.4 1932 w- tie tie 25.4 1948 tie 135 25.6 1898 c 15 134 26.7 2009 w 16 133 27.0 1978 w+ 17 tie 27.0 1988 w- tie 131 27.4 1909 w- 19 130 27.5 1951 c+ 20 129 27.6 1905 w+ 21 128 27.8 1967 c+ 22 127 27.9 1959 w+ 23 126 28.0 1927 c- 24 tie 28.0 1986 tie 124 28.1 1884 26 tie 28.1 1963 c tie 122 28.3 1928 28 121 28.4 1891 29 tie 28.4 1916 c- tie 119 28.5 1992 w+ 31 118 28.6 1931 32 117 28.9 1913 w 33 116 29.0 1935 c- 34 tie 29.0 1944 w- tie 114 29.3 1976 c+ 36 113 29.5 2005 c- 37 112 29.6 1918 c+ 38 111 30.0 1922 c+ 39 110 30.1 1899 c 40 tie 30.1 1965 tie 108 30.2 1926 w+ 42 tie 30.2 1971 c+ tie 106 30.4 1878 44 tie 30.4 1895 tie tie 30.4 1989 c+ tie tie 30.4 1994 tie 102 30.5 1960 c- 48 101 30.6 1954 49 100 30.7 1956 c+ 50 tie 30.7 1998 tie tie 30.7 2001 tie 97 30.8 1945 c- 53 96 30.9 1961 54 95 31.1 1879 55 tie 31.1 1908 tie tie 31.1 1949 w- tie tie 31.1 2000 tie 91 31.2 1894 59 tie 31.2 1911 c tie tie 31.2 1997 w+ tie 88 31.3 1953 w 62 tie 31.3 1966 w tie tie 31.3 2011 c- tie 85 31.4 1947 w 65 tie 31.4 1975 tie 83 31.5 1877 67 tie 31.5 1982 c tie tie 31.5 2008 tie 80 31.6 1912 w+ 70 tie 31.6 1923 c tie 78 31.7 1991 72 77 31.8 2006 w 73 76 31.9 1999 c+ 74 75 32.0 1882 75 74 32.1 1869 76 73 32.2 1903 w 77 72 32.4 2007 c+ 78 71 32.5 1876 79 70 32.6 1887 80 tie 32.6 1897 w+ tie tie 32.6 1904 c+ tie 67 32.8 1943 c+ 83 66 32.9 1921 c+ 84 tie 32.9 1934 c tie tie 32.9 1987 w+ tie 63 33.0 1881 87 tie 33.0 1890 tie 61 33.1 1980 89 tie 33.1 1995 w tie 59 33.2 1974 c+ 91 58 33.3 1993 w+ 92 57 33.4 1873 93 tie 33.4 1892 tie tie 33.4 1942 w+ tie 54 33.5 1872 96 tie 33.5 1970 w tie 52 33.6 1915 w+ 98 51 34.1 1889 99 tie 34.1 1952 w+ tie 49 34.2 1938 c 101 48 34.3 1893 102 tie 34.3 1920 w- tie 46 34.4 1957 c- 104 45 34.6 1969 w+ 105 44 34.8 1910 c+ 106 43 35.0 1925 c+ 107 tie 35.0 1941 w+ tie tie 35.0 2010 c+ tie 40 35.1 1968 c- 110 39 35.2 1871 111 tie 35.2 1883 tie tie 35.2 1936 tie tie 35.2 1964 w tie 35 35.3 1885 115 tie 35.3 1940 w tie tie 35.3 1981 tie 32 35.4 1902 c 118 tie 35.4 1955 c tie tie 35.4 1962 c+ tie tie 35.4 2004 w- tie 28 35.5 1880 122 27 35.6 1901 123 26 35.7 1874 124 25 35.8 1896 125 tie 35.8 1979 tie 23 36.2 1946 127 22 36.3 1950 c+ 128 tie 36.3 1996 tie 20 36.4 1900 w 130 19 36.6 1958 w+ 131 18 36.8 1907 c- 132 17 37.0 1888 133 16 37.2 2003 134 15 37.3 1977 w- 135 tie 37.3 2002 w tie 13 37.5 1937 c- 137 12 37.6 1929 c+ 138 11 37.7 1886 139 10 38.2 1868 140 9 38.4 1973 w+ 141 8 38.7 1906 w+ 142 7 39.1 1866 143 6 40.2 1939 c+ 144 5 40.6 1867 145 4 41.0 1875 146 3 42.4 1933 w- 147 2 43.2 1917 c+ 148 1 1/4/2012 c = la nina w = el nino weak c- or w- moderate c or w strong c+ or w+ average december temperatures at boise, all sites.txt