YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC D-J-F M-A-M J-J-A S-O-N metANN 1902 20.7 20.6 21.4 16.3 12.8 8.9 8.3 9.8 11.4 12.2 16.0 18.3 20.0 16.8 9.0 13.2 14.77 1903 23.2 22.1 16.8 13.8 11.8 10.4 9.2 8.9 999.9 12.1 16.7 20.5 21.2 14.1 9.5 13.0 14.47 1904 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.90 1905 20.8 21.3 18.5 16.8 13.2 10.4 10.7 10.2 11.3 13.2 17.7 21.8 20.4 16.2 10.4 14.1 15.28 1906 23.2 21.1 20.0 16.9 13.2 10.6 8.6 9.1 9.5 13.9 17.2 21.7 22.0 16.7 9.4 13.5 15.43 1907 21.8 23.2 20.4 16.3 12.2 10.7 10.6 11.5 11.9 12.8 15.7 18.7 22.2 16.3 10.9 13.5 15.73 1908 20.9 20.8 17.6 15.5 11.9 8.2 9.0 9.2 10.4 14.4 16.5 21.0 20.1 15.0 8.8 13.8 14.43 1909 22.0 21.1 18.7 14.4 12.6 10.0 7.6 9.2 11.6 12.6 16.5 22.4 21.4 15.2 8.9 13.6 14.78 1910 22.4 23.6 20.5 17.2 12.5 11.1 9.1 10.6 12.5 11.7 15.9 19.7 22.8 16.7 10.3 13.4 15.79 1911 23.8 21.8 18.8 15.8 11.7 9.2 10.0 9.6 11.5 14.4 18.0 20.0 21.8 15.4 9.6 14.6 15.36 1912 23.8 23.5 21.3 17.1 13.5 10.2 9.7 11.0 11.0 14.6 16.9 21.2 22.4 17.3 10.3 14.2 16.05 1913 21.9 22.0 20.1 16.4 12.4 11.1 9.1 9.4 11.2 12.6 16.8 19.1 21.7 16.3 9.9 13.5 15.35 1914 23.5 21.1 19.7 14.7 10.8 10.2 9.3 11.7 13.5 17.5 18.4 22.1 21.2 15.1 10.4 16.5 15.79 1915 23.9 23.2 19.6 17.2 13.4 12.0 10.6 11.0 11.4 13.9 18.0 22.7 23.1 16.7 11.2 14.4 16.36 1916 21.5 21.5 20.0 15.9 13.7 9.7 9.0 10.4 13.2 12.9 18.0 20.3 21.9 16.5 9.7 14.7 15.71 1917 21.7 20.8 18.0 15.8 12.1 10.6 10.8 9.2 11.0 12.8 17.1 19.1 20.9 15.3 10.2 13.6 15.02 1918 24.1 22.6 19.1 18.4 13.1 11.9 9.5 9.9 12.9 13.5 19.0 21.0 21.9 16.9 10.4 15.1 16.09 1919 22.2 21.8 22.0 16.0 12.3 10.4 11.7 10.2 10.6 13.0 17.8 19.9 21.7 16.8 10.8 13.8 15.75 1920 24.0 21.5 20.4 16.2 13.0 10.5 8.4 9.4 12.3 14.8 19.2 20.3 21.8 16.5 9.4 15.4 15.80 1921 22.7 25.5 21.6 16.0 14.5 11.3 11.4 10.6 11.4 13.9 16.5 22.1 22.8 17.4 11.1 13.9 16.31 1922 21.5 21.9 20.1 16.2 11.6 10.0 8.4 10.7 11.2 14.0 17.7 17.9 21.8 16.0 9.7 14.3 15.45 1923 21.6 23.8 20.9 17.7 13.8 10.4 9.7 9.9 10.5 13.8 17.6 20.0 21.1 17.5 10.0 14.0 15.63 1924 20.6 20.8 18.5 17.4 13.2 10.2 9.7 8.9 11.8 12.4 16.3 20.8 20.5 16.4 9.6 13.5 14.98 1925 21.3 20.3 19.5 16.0 12.8 10.4 8.5 8.6 11.5 12.7 19.6 20.7 20.8 16.1 9.2 14.6 15.17 1926 24.1 20.9 18.9 15.9 12.0 10.0 9.9 9.6 11.8 14.3 18.3 19.4 21.9 15.6 9.8 14.8 15.53 1927 20.5 21.0 18.3 17.4 11.5 9.4 9.1 10.2 12.6 13.9 18.0 22.2 20.3 15.7 9.6 14.8 15.11 1928 21.4 20.9 20.5 16.9 12.0 10.4 9.6 11.1 12.0 12.1 18.1 21.1 21.5 16.5 10.4 14.1 15.60 1929 21.3 22.2 18.1 14.5 11.9 9.7 8.5 9.3 11.1 13.8 16.9 20.8 21.5 14.8 9.2 13.9 14.87 1930 23.3 22.5 22.0 16.5 14.4 12.1 9.8 10.5 12.0 13.5 17.4 20.2 22.2 17.6 10.8 14.3 16.23 1931 22.5 20.1 20.1 15.9 10.4 7.3 10.2 10.1 11.1 14.0 16.8 23.1 20.9 15.5 9.2 14.0 14.89 1932 24.5 22.7 19.0 15.6 13.0 10.3 9.5 9.0 11.8 13.3 17.2 20.4 23.4 15.9 9.6 14.1 15.75 1933 22.1 24.2 19.9 16.6 12.5 12.3 8.9 9.4 11.7 13.4 18.2 21.8 22.2 16.3 10.2 14.4 15.80 1934 24.2 24.0 20.5 15.2 14.3 10.1 9.4 10.0 11.9 12.7 15.7 20.0 23.3 16.7 9.8 13.4 15.82 1935 23.1 21.3 19.6 15.8 13.2 10.0 9.4 9.3 11.0 13.2 17.0 20.3 21.5 16.2 9.6 13.7 15.24 1936 22.2 21.6 21.2 15.9 12.3 9.8 8.9 10.9 12.9 14.1 19.5 22.1 21.4 16.5 9.9 15.5 15.80 1937 22.4 22.8 20.3 17.9 12.7 9.3 8.5 9.1 11.3 14.1 18.7 20.2 22.4 17.0 9.0 14.7 15.77 1938 21.3 21.1 19.2 16.3 12.6 9.2 9.4 10.3 12.8 13.9 18.1 20.9 20.9 16.0 9.6 14.9 15.37 1939 21.0 22.4 20.4 16.1 12.9 10.1 9.5 10.2 12.0 14.4 17.1 21.0 21.4 16.5 9.9 14.5 15.58 1940 21.7 23.4 20.0 14.5 12.2 11.5 9.3 10.3 11.8 14.7 18.0 20.1 22.0 15.6 10.4 14.8 15.70 1941 22.7 22.5 19.2 15.5 12.5 11.7 10.9 11.2 10.9 13.2 17.3 22.1 21.8 15.7 11.3 13.8 15.64 1942 22.1 21.8 18.7 16.1 12.5 10.4 8.8 10.4 11.3 12.8 17.9 21.2 22.0 15.8 9.9 14.0 15.41 1943 21.2 21.0 20.6 15.5 11.5 10.3 7.8 8.8 11.3 13.2 18.1 20.2 21.1 15.9 9.0 14.2 15.04 1944 23.4 22.6 19.4 15.7 11.2 10.7 9.6 10.5 11.7 16.1 18.6 18.3 22.1 15.4 10.3 15.5 15.81 1945 22.2 23.2 20.4 19.4 13.9 11.3 9.6 11.0 11.2 14.2 17.7 20.4 21.2 17.9 10.6 14.4 16.03 1946 20.8 20.1 18.4 16.6 12.6 10.0 10.1 9.6 12.8 15.1 16.4 20.9 20.4 15.9 9.9 14.8 15.24 1947 21.7 22.6 20.5 16.2 12.0 12.2 9.6 9.7 11.0 12.8 17.0 18.8 21.7 16.2 10.5 13.6 15.52 1948 22.9 24.9 22.6 14.9 12.6 10.7 9.9 11.5 11.9 14.2 16.7 19.0 22.2 16.7 10.7 14.3 15.97 1949 23.4 22.4 19.0 18.1 11.8 10.5 11.4 11.6 10.9 12.7 17.3 22.1 21.6 16.3 11.2 13.6 15.68 1950 23.0 22.3 21.4 17.6 13.2 9.7 9.5 10.2 11.3 12.7 15.5 19.8 22.5 17.4 9.8 13.2 15.71 1951 22.3 21.9 20.6 15.3 10.9 10.5 8.6 8.3 12.5 13.8 17.0 19.6 21.3 15.6 9.1 14.4 15.13 1952 22.8 22.4 19.5 16.6 11.6 11.3 8.2 9.7 10.9 12.7 16.1 17.5 21.6 15.9 9.7 13.2 15.12 1953 22.6 21.8 22.2 16.6 12.7 10.2 9.2 9.3 11.8 13.4 16.4 20.1 20.6 17.2 9.6 13.9 15.31 1954 23.8 22.4 20.1 14.0 11.7 9.5 9.3 9.8 11.6 14.5 16.0 21.2 22.1 15.3 9.5 14.0 15.23 1955 23.2 23.2 19.9 15.7 11.6 8.5 8.7 10.3 11.2 12.4 16.0 19.3 22.5 15.7 9.2 13.2 15.16 1956 24.5 23.0 21.1 14.2 11.6 8.5 9.3 8.2 10.9 12.7 17.4 20.4 22.3 15.6 8.7 13.7 15.06 1957 23.6 21.9 20.3 15.8 12.8 11.7 8.5 10.5 11.4 15.1 18.7 21.6 22.0 16.3 10.2 15.1 15.89 1958 24.9 22.6 21.0 16.1 13.5 10.5 9.0 9.3 10.8 12.4 17.5 22.5 23.0 16.9 9.6 13.6 15.77 1959 22.9 22.6 21.8 16.9 14.0 12.3 11.3 11.4 11.0 14.4 17.6 18.8 22.7 17.6 11.7 14.3 16.56 1960 20.4 22.7 18.5 14.1 10.7 9.6 8.6 8.9 10.9 14.8 17.6 21.8 20.6 14.4 9.0 14.4 14.63 1961 25.4 23.6 21.7 14.8 12.7 10.8 9.0 9.8 12.1 14.3 18.1 21.4 23.6 16.4 9.9 14.8 16.18 1962 25.1 23.1 19.0 18.0 14.7 12.2 8.7 10.9 11.3 12.2 17.5 22.5 23.2 17.2 10.6 13.7 16.18 1963 23.0 22.6 22.1 16.5 13.8 10.7 10.1 10.5 12.7 15.3 18.8 21.9 22.7 17.5 10.4 15.6 16.55 1964 22.4 22.4 20.7 15.1 11.1 12.2 11.0 10.3 10.7 11.5 16.6 19.8 22.2 15.6 11.2 12.9 15.49 1965 23.2 22.9 19.9 17.6 11.9 11.0 9.3 10.0 11.5 14.8 16.5 21.3 22.0 16.5 10.1 14.3 15.70 1966 23.4 21.5 20.4 16.0 12.2 10.0 9.7 8.9 10.9 13.1 18.4 20.1 22.1 16.2 9.5 14.1 15.48 1967 22.4 23.2 19.3 17.4 13.1 12.3 9.2 9.3 11.3 16.0 17.8 20.4 21.9 16.6 10.3 15.0 15.95 1968 22.7 21.5 17.2 13.8 9.8 10.7 9.7 8.4 10.2 12.9 16.2 20.2 21.5 13.6 9.6 13.1 14.46 1969 21.6 22.1 18.9 15.6 12.0 10.8 9.3 9.7 9.5 16.2 18.9 21.0 21.3 15.5 9.9 14.9 15.40 1970 23.0 23.6 21.6 15.3 12.5 11.2 10.8 9.5 11.3 13.6 17.0 21.8 22.5 16.5 10.5 14.0 15.87 1971 22.7 22.3 20.6 15.7 12.2 10.6 9.7 9.9 10.8 12.2 14.7 19.7 22.3 16.2 10.1 12.6 15.27 1972 23.7 24.9 20.8 16.2 14.8 11.0 10.1 10.5 12.2 14.3 20.2 24.0 22.8 17.3 10.5 15.6 16.53 1973 23.0 22.6 20.1 17.3 13.5 9.9 11.0 9.9 11.3 14.1 18.2 20.4 23.2 17.0 10.3 14.5 16.24 1974 24.1 22.0 21.6 15.7 13.0 10.7 10.3 10.1 11.8 12.9 16.0 21.6 22.2 16.8 10.4 13.6 15.72 1975 22.4 25.1 19.3 16.1 12.5 10.7 10.3 9.3 10.7 13.4 17.5 21.5 23.0 16.0 10.1 13.9 15.74 1976 22.4 24.3 21.4 17.5 13.9 10.4 11.4 10.5 12.4 16.2 16.0 21.4 22.7 17.6 10.8 14.9 16.49 1977 23.3 25.1 19.7 17.6 13.1 11.3 10.8 11.8 11.3 14.5 18.1 24.6 23.3 16.8 11.3 14.6 16.50 1978 25.0 24.2 22.5 19.3 13.3 10.6 10.2 10.6 11.2 14.2 18.8 21.7 24.6 18.4 10.5 14.7 17.04 1979 23.3 23.0 21.5 16.1 12.3 11.6 10.3 9.3 11.3 15.5 18.4 22.4 22.7 16.6 10.4 15.1 16.19 1980 24.9 22.7 22.9 15.1 14.1 11.0 10.4 11.0 11.9 12.5 18.4 20.4 23.3 17.4 10.8 14.3 16.44 1981 23.3 20.5 20.6 18.4 999.9 9.1 10.2 10.2 13.0 14.9 16.0 20.4 21.4 17.6 9.8 14.6 15.88 1982 21.9 23.1 19.3 16.3 12.7 10.0 9.4 11.1 11.7 15.2 20.3 22.3 21.8 16.1 10.2 15.7 15.95 1983 24.4 21.7 21.8 16.6 14.2 12.3 9.9 11.9 13.3 15.1 17.4 21.3 22.8 17.5 11.4 15.3 16.74 1984 23.1 23.2 18.6 17.4 13.4 9.9 9.6 9.8 11.1 14.2 17.1 18.7 22.5 16.5 9.8 14.1 15.73 1985 22.5 26.3 22.3 15.9 12.7 12.1 10.1 10.5 11.9 13.8 19.0 18.7 22.5 17.0 10.9 14.9 16.32 1986 24.3 20.8 19.6 15.4 999.9 999.9 999.9 9.1 999.9 999.9 999.9 999.9 21.3 15.6 999.9 999.9 999.90 1987 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 14.3 999.9 999.9 999.9 999.9 999.9 999.9 999.90 1988 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.90 1989 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.90 1990 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 999.9 13.9 17.6 20.8 999.9 999.9 999.9 14.4 999.90 1991 23.3 22.7 20.6 17.9 13.5 12.2 10.6 10.7 12.3 15.8 16.5 22.3 22.3 17.3 11.2 14.9 16.41 1992 23.8 22.5 20.6 17.6 13.0 11.4 11.4 10.5 11.0 14.3 999.9 999.9 22.9 17.1 11.1 14.2 16.32