YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN WINTER SPRING SUMMER AUTUMN 1ST HALF 2ND HALF 1871 32.6 35.9 48.0 58.2 63.9 73.2 74.0 76.8 62.3 58.1 42.3 32.1 54.8 m 56.7 74.7 54.2 52.0 57.6 1872 31.7 33.7 35.4 56.0 67.4 75.4 81.1 79.0 69.0 55.5 42.5 30.3 54.8 32.5 52.9 78.5 55.7 49.9 59.6 1873 30.9 34.8 41.8 53.1 63.6 75.1 79.8 74.8 68.0 54.9 40.8 40.5 54.8 32.0 52.8 76.6 54.6 49.9 59.8 1874 40.3 37.2 44.5 47.1 63.8 77.5 78.9 72.7 70.1 55.9 44.6 39.2 56.0 39.3 51.8 76.4 56.9 51.7 60.2 1875 29.5 28.8 39.1 48.0 63.6 72.9 77.0 71.9 64.6 53.6 41.0 36.8 52.2 32.5 50.2 73.9 53.1 47.0 57.5 1876 40.8 36.7 39.4 51.4 64.5 75.8 80.4 75.5 65.2 50.7 45.2 26.5 54.3 38.1 51.8 77.2 53.7 51.4 57.3 1877 29.4 39.4 41.0 52.9 61.9 73.9 77.8 76.3 66.9 58.6 46.2 41.8 55.5 31.8 51.9 76.0 57.2 49.8 61.3 1878 33.5 39.8 49.4 58.3 62.5 69.1 80.2 75.0 68.9 57.0 45.4 33.3 56.0 38.4 56.7 74.8 57.1 52.1 60.0 1879 30.8 32.2 43.8 52.8 65.7 73.3 79.0 75.3 65.2 63.0 46.7 41.9 55.8 32.1 54.1 75.9 58.3 49.8 61.9 1880 41.9 40.8 41.8 55.5 70.5 74.3 76.7 74.9 67.9 54.9 40.2 29.0 55.6 41.5 55.9 75.3 54.3 54.1 57.3 1881 27.6 32.8 40.1 50.3 67.0 70.7 77.4 76.5 77.0 62.9 47.5 41.7 56.0 29.8 52.5 74.9 62.5 48.1 63.8 1882 33.2 40.4 44.1 50.8 59.2 73.8 76.0 73.9 69.1 60.9 42.9 34.1 54.9 38.4 51.4 74.6 57.6 50.3 59.5 1883 29.6 37.5 37.6 50.9 63.6 74.4 76.8 72.1 65.1 56.9 47.2 36.9 54.0 33.7 50.7 74.4 56.4 48.9 59.2 1884 29.4 40.9 42.2 50.9 64.4 72.5 74.2 74.2 71.7 59.6 44.7 36.0 55.1 35.7 52.5 73.6 58.7 50.1 60.1 1885 32.9 26.9 34.5 53.1 62.3 71.1 77.8 73.4 66.1 54.7 45.3 37.5 53.0 31.9 50.0 74.1 55.4 46.8 59.1 1886 28.9 32.1 42.0 55.5 62.1 69.9 73.9 73.1 69.3 57.6 46.1 30.7 53.4 32.8 53.2 72.3 57.7 48.4 58.5 1887 32.9 38.9 38.5 51.6 67.9 72.1 80.5 73.2 65.0 55.4 41.9 37.2 54.8 34.2 52.7 75.3 54.1 50.3 58.9 1888 29.2 35.7 37.4 52.9 62.7 73.0 73.6 75.8 64.8 52.6 47.4 37.5 53.6 34.0 51.0 74.1 54.9 48.5 58.6 1889 39.2 31.1 43.4 54.4 64.6 70.8 75.8 72.4 65.6 52.5 46.2 45.6 55.1 35.9 54.1 73.0 54.8 50.6 59.7 1890 43.8 43.4 41.4 53.6 63.8 74.8 75.0 73.6 67.8 56.4 48.0 34.2 56.3 44.3 52.9 74.5 57.4 53.5 59.2 1891 37.4 41.4 38.6 55.4 61.4 71.6 72.0 74.5 70.3 54.4 44.0 43.2 55.4 37.7 51.8 72.7 56.2 51.0 59.7 1892 31.6 37.0 37.7 51.4 63.8 76.2 75.8 76.2 66.1 55.4 43.7 33.2 54.0 37.3 51.0 76.1 55.1 49.6 58.4 1893 24.6 35.1 41.1 53.8 61.6 72.5 77.0 74.6 66.0 56.5 43.6 38.3 53.7 31.0 52.2 74.7 55.4 48.1 59.3 1894 37.8 35.2 48.5 53.2 65.9 73.6 77.9 74.0 71.4 57.9 44.0 37.4 56.4 37.1 55.9 75.2 57.8 52.4 60.4 1895 31.6 26.2 41.8 53.8 62.6 74.6 72.8 77.2 72.4 52.1 46.4 38.8 54.2 31.7 52.7 74.9 57.0 48.4 60.0 1896 33.3 36.7 38.5 56.6 68.8 71.3 76.7 75.8 67.8 54.0 50.6 35.6 55.5 36.3 54.6 74.6 57.5 50.9 60.1 1897 31.0 36.6 46.0 52.9 62.4 69.6 76.9 73.4 68.2 58.0 46.0 38.1 54.9 34.4 53.8 73.3 57.4 49.8 60.1 1898 36.6 35.0 48.8 50.9 64.4 73.5 78.8 76.9 71.0 57.8 44.0 35.6 56.1 36.6 54.7 76.4 57.6 51.5 60.7 1899 33.4 27.4 42.2 54.0 64.4 74.3 76.6 74.8 65.8 58.5 45.3 36.2 54.4 32.1 53.5 75.2 56.5 49.3 59.5 1900 35.2 33.7 38.8 54.2 64.4 72.2 78.7 79.6 73.6 61.6 49.2 36.5 56.5 35.0 52.5 76.8 61.5 49.8 63.2 1901 34.9 29.8 45.0 50.6 62.5 72.4 79.8 76.0 67.4 55.6 40.6 34.8 54.1 33.7 52.7 76.1 54.5 49.2 59.0 1902 31.8 29.8 46.7 52.9 65.4 71.8 77.0 72.6 66.8 57.6 51.3 34.4 54.8 32.1 55.0 73.8 58.6 49.7 60.0 1903 33.4 37.4 50.0 54.0 64.4 67.0 76.0 71.8 67.2 56.8 41.6 32.2 54.3 35.1 56.1 71.6 55.2 51.0 57.6 1904 27.5 28.4 42.2 49.7 65.0 71.0 74.4 72.3 67.4 54.1 43.1 30.9 52.2 29.4 52.3 72.6 54.9 47.3 57.0 1905 29.8 26.4 45.0 54.0 65.2 71.8 76.4 73.6 68.2 56.9 44.4 37.5 54.1 29.0 54.7 73.9 56.5 48.7 59.5 1906 40.0 34.0 37.6 55.5 64.4 72.8 75.2 76.4 72.9 56.9 47.8 37.0 55.9 37.2 52.5 74.8 59.2 50.7 61.0 1907 37.2 30.2 48.8 48.4 59.2 65.9 75.8 72.4 69.4 52.0 44.5 38.1 53.5 34.8 52.1 71.4 55.3 48.3 58.7 1908 34.2 30.8 47.4 56.4 65.3 71.8 78.0 73.2 66.6 58.2 46.0 37.0 55.4 34.4 56.4 74.3 56.9 51.0 59.8 1909 36.0 43.0 42.1 54.2 64.4 73.9 74.7 73.0 66.4 53.2 50.8 31.8 55.2 38.7 53.6 73.9 56.8 52.3 58.3 1910 33.6 34.6 51.2 57.9 61.4 69.7 77.6 73.8 71.0 60.2 41.4 30.5 55.2 33.3 56.8 73.7 57.5 51.4 59.1 1911 38.2 37.0 41.0 51.2 70.0 73.0 78.7 76.6 70.4 57.2 42.8 41.0 56.4 35.2 54.1 76.1 56.8 51.7 61.1 1912 25.0 31.0 40.9 55.6 65.1 70.4 75.8 73.4 70.4 59.3 46.9 40.0 54.5 32.3 53.9 73.2 58.9 48.0 61.0 1913 43.6 36.6 49.0 55.5 64.4 72.8 77.6 74.2 67.4 58.8 47.8 40.4 57.3 40.1 56.3 74.9 58.0 53.7 61.0 1914 38.6 30.1 39.4 53.5 67.0 73.8 75.9 76.4 66.0 60.2 45.4 32.8 54.9 36.4 53.3 75.4 57.2 50.4 59.5 1915 35.6 38.8 38.8 59.4 62.5 70.6 76.1 74.0 71.0 58.6 46.2 35.2 55.6 35.7 53.6 73.6 58.6 51.0 60.2 1916 39.8 34.2 37.9 53.4 66.7 69.7 77.8 75.2 66.6 56.6 46.3 35.5 55.0 36.4 52.7 74.2 56.5 50.3 59.7 1917 35.0 32.8 43.4 54.2 59.6 72.6 76.6 75.9 63.8 52.0 42.8 27.9 53.0 34.4 52.4 75.0 52.9 49.6 56.5 1918 23.7 36.8 48.4 53.2 69.6 70.8 74.4 77.6 64.2 60.6 46.3 41.6 55.6 29.5 57.1 74.3 57.0 50.4 60.8 1919 38.1 37.2 46.4 53.8 64.6 73.9 77.2 73.6 69.4 63.2 46.8 32.6 56.4 39.0 54.9 74.9 59.8 52.3 60.5 1920 28.7 32.7 45.5 52.6 60.0 71.6 75.0 74.8 68.8 61.2 45.9 39.3 54.7 31.3 52.7 73.8 58.6 48.5 60.8 1921 36.6 39.0 55.5 59.2 62.3 74.2 79.3 72.8 74.4 57.0 47.5 37.9 58.0 38.3 59.0 75.4 59.6 54.5 61.5 1922 32.0 38.6 45.4 55.6 66.8 74.5 76.6 73.1 69.9 59.4 47.9 37.6 56.4 36.2 55.9 74.7 59.1 52.2 60.8 1923 36.8 32.6 45.4 53.6 63.4 75.6 75.7 74.4 69.6 56.1 45.1 45.0 56.1 35.7 54.1 75.2 56.9 51.2 61.0 1924 35.0 34.2 42.6 51.9 60.0 71.3 75.0 74.8 64.3 57.4 46.0 36.4 54.1 38.1 51.5 73.7 55.9 49.2 59.0 1925 32.9 43.0 46.4 56.9 60.6 77.4 76.8 73.0 72.8 52.0 44.3 37.0 56.1 37.4 54.6 75.7 56.4 52.9 59.3 1926 33.8 36.5 40.1 51.1 64.3 69.1 76.7 76.4 69.0 57.2 45.1 33.8 54.5 35.8 51.8 74.1 57.1 49.2 59.7 1927 34.0 42.1 47.6 51.9 64.0 68.6 76.4 70.0 70.1 60.4 51.0 39.1 56.3 36.6 54.5 71.7 60.5 51.4 61.2 1928 35.9 37.6 44.1 51.9 63.1 71.0 78.1 77.0 64.9 59.9 49.4 39.2 56.0 37.5 53.0 75.4 58.1 50.6 61.4 1929 34.9 35.0 50.2 57.6 64.5 72.9 76.9 74.4 70.2 55.6 47.6 38.4 56.5 36.4 57.4 74.7 57.8 52.5 60.5 1930 35.6 41.9 45.0 53.2 67.3 75.1 80.4 76.8 76.0 56.2 46.7 35.7 57.5 38.6 55.2 77.4 59.6 53.0 62.0 1931 37.0 39.4 41.3 54.2 65.1 73.3 79.6 75.6 74.1 61.2 54.0 44.2 58.2 37.4 53.5 76.2 63.1 51.7 64.8 1932 46.8 42.9 40.0 52.6 64.2 73.2 77.4 77.8 70.3 58.0 44.7 39.6 57.3 44.6 52.3 76.1 57.7 53.3 61.3 1933 42.6 38.4 43.0 55.7 67.2 74.7 76.1 76.0 71.8 56.5 45.0 38.6 57.1 40.2 55.3 75.6 57.8 53.6 60.7 1934 39.1 24.6 41.2 53.9 66.5 77.2 80.8 74.1 70.6 56.2 49.6 37.3 55.9 34.1 53.9 77.4 58.8 50.4 61.4 1935 33.3 35.4 50.2 51.9 61.8 73.4 79.4 76.8 67.0 58.2 50.2 32.1 55.8 35.3 54.6 76.5 58.5 51.0 60.6 1936 30.6 29.6 50.3 52.2 67.4 72.8 78.4 77.9 71.4 59.7 45.0 39.8 56.3 30.8 56.6 76.4 58.7 50.5 62.0 1937 43.8 36.6 42.1 53.4 65.8 75.1 77.2 77.8 65.9 55.3 46.6 37.0 56.4 40.1 53.8 76.7 55.9 52.8 60.0 1938 35.7 40.9 49.8 57.1 63.4 72.8 78.4 78.6 67.4 58.8 49.8 38.4 57.6 37.9 56.8 76.6 58.7 53.3 61.9 1939 37.8 42.3 46.4 53.4 68.0 75.4 76.2 78.8 71.0 58.4 46.0 40.1 57.8 39.5 55.9 76.8 58.5 53.9 61.8 1940 24.9 37.1 40.7 50.8 64.4 74.8 77.5 73.4 66.8 55.7 48.2 42.8 54.8 34.0 52.0 75.2 56.9 48.8 60.7 1941 34.8 33.8 39.8 60.6 66.8 73.2 77.0 75.4 72.4 64.4 50.1 41.4 57.5 37.1 55.7 75.2 62.3 51.5 63.5 1942 34.4 34.1 46.8 58.2 68.4 74.0 78.6 74.8 70.3 59.8 47.6 34.4 56.8 36.6 57.8 75.8 59.2 52.7 60.9 1943 35.8 38.2 44.6 51.1 66.9 78.8 78.0 78.6 67.6 56.4 46.8 36.6 56.6 36.1 54.2 78.5 56.9 52.6 60.7 1944 37.2 37.8 42.6 53.4 70.8 74.6 78.2 75.8 70.6 56.6 47.4 34.2 56.6 37.2 55.6 76.2 58.2 52.7 60.5 1945 30.8 38.4 55.5 59.4 63.0 74.4 76.4 74.8 72.8 57.6 49.3 32.9 57.1 34.5 59.3 75.2 59.9 53.6 60.6 1946 36.8 39.2 53.0 56.0 65.2 72.4 76.2 72.6 70.0 61.4 51.8 41.4 58.0 36.3 58.1 73.7 61.1 53.8 62.2 1947 41.7 31.4 40.0 57.2 64.6 71.6 75.5 79.0 69.8 64.5 46.2 36.6 56.5 38.2 53.9 75.4 60.2 51.1 61.9 1948 28.8 36.8 48.0 55.9 64.6 74.0 78.0 75.8 69.4 56.2 51.4 40.2 56.6 34.1 56.2 75.9 59.0 51.4 61.8 1949 42.6 43.8 46.6 55.0 66.0 75.1 81.0 77.6 67.1 63.4 48.1 41.9 59.0 42.2 55.9 77.9 59.5 54.9 63.2 1950 48.0 38.7 41.7 52.4 64.5 73.9 76.2 75.6 66.9 61.0 47.9 35.6 56.9 42.9 52.9 75.2 58.6 53.2 60.5 1951 39.3 38.6 45.6 55.9 64.9 73.4 78.7 76.8 70.3 62.1 44.1 40.9 57.6 37.8 55.5 76.3 58.8 53.0 62.2 1952 40.7 41.1 43.3 57.0 64.2 76.9 80.5 76.2 68.9 55.3 48.2 38.9 57.6 40.9 54.8 77.9 57.5 53.9 61.3 1953 40.7 42.6 47.5 56.1 70.1 74.6 79.6 76.3 69.7 60.5 48.1 40.9 58.9 40.7 57.9 76.8 59.4 55.3 62.5 1954 35.9 43.5 44.5 59.6 62.6 74.4 78.8 75.2 73.3 62.0 45.2 37.1 57.7 40.1 55.6 76.1 60.2 53.4 61.9 1955 35.4 37.8 47.1 58.2 67.1 70.2 82.1 78.3 69.9 59.6 45.5 33.6 57.1 36.8 57.5 76.9 58.3 52.6 61.5 1956 34.5 41.1 43.2 53.6 63.6 73.3 75.6 75.0 66.6 59.0 46.1 44.2 56.3 36.4 53.5 74.6 57.2 51.6 61.1 1957 32.9 41.4 45.8 59.2 67.2 76.6 79.2 75.7 71.9 55.4 49.6 41.4 58.0 39.5 57.4 77.2 59.0 53.9 62.2 1958 34.4 31.2 41.4 57.1 65.2 71.3 79.1 75.4 69.1 59.1 49.9 32.9 55.5 35.7 54.6 75.3 59.4 50.1 60.9 1959 34.9 39.0 45.4 58.5 69.8 76.0 78.5 80.3 73.2 62.2 46.8 42.0 58.9 35.6 57.9 78.3 60.7 53.9 63.8 1960 38.2 38.3 35.6 61.2 63.7 74.1 77.0 78.5 71.3 58.7 48.5 31.0 56.3 39.5 53.5 76.5 59.5 51.9 60.8 1961 29.8 38.3 47.6 52.0 62.2 73.2 78.6 77.6 74.8 59.9 50.2 36.4 56.7 33.0 53.9 76.5 61.6 50.5 62.9 1962 34.6 34.6 44.2 56.3 68.7 73.8 75.3 76.8 67.0 60.3 44.9 33.2 55.8 35.2 56.4 75.3 57.4 52.0 59.6 1963 31.4 31.0 48.5 57.8 64.9 73.7 77.6 75.4 66.5 61.2 49.8 31.1 55.7 31.9 57.1 75.6 59.2 51.2 60.3 1964 36.3 36.9 47.5 54.1 68.1 76.0 79.1 75.5 69.9 55.1 51.0 39.9 57.5 34.8 56.6 76.9 58.7 53.2 61.8 1965 33.4 36.8 41.4 51.8 69.1 72.6 78.2 77.2 72.6 57.5 49.5 41.5 56.8 36.7 54.1 76.0 59.9 50.9 62.8 1966 32.4 36.2 47.5 52.7 65.0 76.0 80.9 78.7 68.6 57.0 49.5 37.6 56.8 36.7 55.1 78.5 58.4 51.6 62.1 1967 41.0 34.0 45.0 57.6 60.0 74.7 77.2 76.2 68.0 57.9 45.0 39.9 56.4 37.5 54.2 76.0 57.0 52.1 60.7 1968 31.4 34.3 49.7 58.0 63.7 74.1 79.9 79.2 72.0 61.3 50.0 36.6 57.5 35.2 57.1 77.7 61.1 51.9 63.2 1969 34.2 36.9 43.0 58.7 68.4 77.1 79.5 76.3 70.1 58.8 47.2 36.3 57.2 35.9 56.7 77.6 58.7 53.1 61.4 1970 30.0 37.1 41.9 55.3 68.3 75.2 79.2 79.0 75.0 62.5 49.3 39.7 57.7 34.5 55.2 77.8 62.3 51.3 64.1 1971 31.3 39.1 43.2 55.0 63.7 75.9 78.3 76.7 73.0 64.7 48.2 45.5 57.9 36.7 54.0 77.0 62.0 51.4 64.4 1972 38.5 36.5 45.6 54.1 64.6 70.2 77.5 75.9 71.0 56.0 46.8 43.6 56.7 40.2 54.8 74.5 57.9 51.6 61.8 1973 37.6 37.0 51.1 56.0 62.8 77.1 79.2 79.9 74.3 63.3 51.6 41.9 59.3 39.4 56.6 78.7 63.1 53.6 65.0 1974 42.9 39.2 49.2 58.3 65.1 71.5 79.0 78.4 70.2 57.3 50.9 43.1 58.8 41.3 57.5 76.3 59.5 54.4 63.2 1975 40.9 40.6 45.2 53.6 69.7 76.4 79.3 80.1 68.5 63.2 54.4 40.5 59.4 41.5 56.2 78.6 62.0 54.4 64.3 1976 33.9 46.9 51.3 59.9 65.0 77.6 78.4 76.7 70.4 55.4 43.0 35.5 57.9 40.4 58.7 77.6 56.3 55.8 59.9 1977 25.4 38.8 52.7 60.1 69.4 74.3 80.9 78.8 73.9 59.0 51.8 38.1 58.6 33.2 60.7 78.0 61.6 53.5 63.8 1978 32.5 31.4 44.4 57.7 65.8 76.7 78.8 81.3 73.6 59.4 52.2 43.1 58.1 34.0 56.0 78.9 61.7 51.4 64.7 1979 35.1 28.4 51.5 56.0 67.7 72.4 78.6 78.5 71.6 58.6 54.4 43.7 58.1 35.5 58.4 76.5 61.5 51.9 64.2 1980 37.2 36.1 46.2 60.1 69.5 74.8 82.3 82.8 77.1 59.9 48.6 39.8 59.5 39.0 58.6 80.0 61.9 54.0 65.1 1981 33.0 43.7 47.6 62.1 66.2 78.7 80.2 77.0 71.0 58.3 51.4 38.5 59.0 38.8 58.6 78.6 60.2 55.2 62.7 1982 28.1 38.3 45.7 54.0 69.0 72.8 80.3 75.4 70.6 60.2 51.8 45.5 57.7 35.0 56.2 76.2 60.9 51.3 64.0 1983 38.1 38.7 48.8 53.3 64.9 75.0 81.2 81.0 72.6 60.5 50.3 36.0 58.4 40.8 55.7 79.1 61.1 53.1 63.6 1984 32.2 43.8 41.8 54.9 64.9 76.9 76.5 77.8 68.3 65.2 46.0 45.6 57.8 37.3 53.9 77.1 59.8 52.4 63.2 1985 30.8 37.8 47.7 61.6 68.1 72.3 79.0 76.7 71.9 61.2 54.3 36.4 58.2 38.1 59.1 76.0 62.5 53.1 63.3 1986 35.4 35.3 47.4 56.2 68.1 76.6 81.1 74.6 70.9 61.1 46.5 39.8 57.8 35.7 57.2 77.4 59.5 53.2 62.3 1987 34.7 37.0 47.7 54.8 67.2 76.4 82.6 78.7 72.1 54.4 49.9 41.5 58.1 37.2 56.6 79.2 58.8 53.0 63.2 1988 31.0 37.3 47.2 54.4 65.8 74.4 81.9 80.7 68.9 54.4 49.9 38.7 57.1 36.6 55.8 79.0 57.7 51.7 62.4 1989 39.9 37.8 46.1 55.4 64.1 76.8 78.3 77.1 71.4 60.5 48.0 27.9 56.9 38.8 55.2 77.4 60.0 53.4 60.5 1990 43.6 45.2 50.2 56.8 64.3 75.0 79.4 76.5 69.6 62.8 52.0 44.5 60.0 38.9 57.1 77.0 61.5 55.9 64.1 1991 38.6 43.0 48.8 58.2 73.0 76.8 81.4 80.0 71.0 60.4 48.8 42.3 60.2 42.0 60.0 79.4 60.1 56.4 64.0 1992 38.2 41.2 45.0 55.4 62.3 71.7 79.5 74.0 69.2 56.0 48.8 39.6 56.7 40.6 54.2 75.1 58.0 52.3 61.2 1993 39.7 34.3 42.2 54.8 67.4 75.3 83.1 79.6 71.0 58.1 48.8 38.1 57.7 37.9 54.8 79.3 59.3 52.3 63.1 1994 28.8 36.3 45.5 62.0 63.1 79.4 81.8 75.5 70.2 59.1 53.3 44.2 58.3 34.4 56.9 78.9 60.9 52.5 64.0 1995 39.6 34.3 49.2 56.3 65.8 74.6 81.5 81.3 70.9 62.3 43.1 35.6 57.9 39.4 57.1 79.1 58.8 53.3 62.5 1996 32.9 37.3 42.9 56.8 63.9 77.2 77.6 76.5 70.6 59.4 44.1 43.0 56.9 35.3 54.5 77.1 58.0 51.8 61.9 1997 37.0 44.7 48.7 54.0 62.9 73.1 80.4 77.6 70.5 59.6 46.2 41.0 58.0 41.6 55.2 77.0 58.8 53.4 62.6 1998 43.0 43.4 46.9 57.4 67.5 73.0 78.9 79.4 75.4 60.1 50.3 44.4 60.0 42.5 57.3 77.1 61.9 55.2 64.8 1999 38.2 41.0 44.5 56.5 67.3 74.7 83.0 79.7 70.0 57.2 53.1 42.0 58.9 41.2 56.1 79.1 60.1 53.7 64.2 2000 35.9 42.5 51.7 55.6 67.8 74.7 74.7 75.1 67.6 60.2 46.7 31.8 57.0 40.1 58.4 74.8 58.2 54.7 59.4 2001 35.5 40.9 43.8 57.6 65.9 75.2 75.3 78.9 68.9 59.7 54.8 45.5 58.5 36.1 55.8 76.5 61.1 53.2 63.9 2002 41.6 42.6 47.7 60.0 65.2 76.1 80.9 81.1 73.0 58.7 47.1 37.2 59.3 43.2 57.6 79.4 59.6 55.5 63.0 2003 31.1 33.7 47.1 55.1 61.7 71.4 77.8 78.8 70.5 57.5 53.1 39.2 56.4 34.0 54.6 76.0 60.4 50.0 62.8 2004 30.6 38.2 48.8 57.4 71.8 73.4 78.6 75.9 71.6 58.3 51.0 40.1 58.0 36.0 59.3 76.0 60.3 53.4 62.6 2005 36.1 39.6 43.1 57.3 61.9 75.7 80.5 80.1 75.0 60.5 50.2 36.4 58.0 38.6 54.1 78.8 61.9 52.3 63.8 2006 43.1 38.6 47.9 59.5 65.1 74.5 80.4 80.6 67.8 57.3 50.7 44.2 59.1 39.4 57.5 78.5 58.6 54.8 63.5 2007 40.7 30.9 47.7 53.6 67.8 76.1 79.2 79.7 72.9 67.1 49.8 41.8 58.9 38.6 56.4 78.3 63.3 52.8 65.1 2008 40.0 41.0 40.5 40.9 0.0 0.0 0.0 13.5 0.0 2009 0.0 0.0 0.0 0.0 0.0 0.0 2010 0.0 0.0 0.0 0.0 0.0 0.0 NORM 34.9 38.1 46.5 56.1 65.6 74.5 79.2 77.4 70.5 58.8 48.7 39.5 57.5 37.5 56.1 77.0 59.3 YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN WINTER SPRING SUMMER AUTUMN 1ST HALF 2ND HALF 1971-2000