| St. Louis, MO Top 30 Driest Months | |||||||||||||||||||||||||
| January | February | March | April | May | June | July | August | September | October | November | December | ||||||||||||||
| 1. | 0.10 | 1986 | 0.25 | 1963 | 0.14 | 1910 | 0.46 | 1895 | 0.54 | 1934 | 0.10 | 1914 | 1. | 0.25 | 1930 | 0.07 | 1873 | Trace | 1979 | 0.21 | 1975 | 0.11 | 1949 | 0.03 | 1955 |
| 2. | 0.13 | 1919 | 0.27 | 1947 | 0.40 | 1885 | 0.49 | 1871 | 0.69 | 1914 | 0.15 | 1933 | 2. | 0.37 | 1890 | 0.08 | 1971 | Trace | 1940 | 0.21 | 1908 | 0.30 | 1910 | 0.18 | 1876 |
| 3. | 0.20 | 1944 | 0.28 | 1870 | 0.44 | 1915 | 0.99 | 1977 | 0.78 | 2005 | 0.44 | 1991 | 3. | 0.52 | 1941 | 0.28 | 1930 | 0.01 | 1983 | 0.23 | 1895 | 0.44 | 1969 | 0.32 | 1958 |
| 4. | 0.22 | 1970 | 0.35 | 1917 | 0.67 | 1918 | 1.15 | 1988 | 0.85 | 1936 | 0.47 | 1959 | 4. | 0.54 | 1926 | 0.31 | 1881 | 0.09 | 1897 | 0.24 | 1952 | 0.54 | 1904 | 0.40 | 1900 |
| 5. | 0.33 | 1893 | 0.43 | 1895 | 0.72 | 1941 | 1.20 | 1915 | 0.95 | 1879 | 0.62 | 1917 | 5. | 0.55 | 1886 | 0.52 | 1969 | 0.22 | 2004 | 0.30 | 1924 | 0.56 | 1920 | 0.42 | 1912 |
| 6. | 0.39 | 1961 | 0.47 | 1958 | 0.84 | 1956 | 1.23 | 1986 | 1.02 | 1972 | 0.80 | 1922 | 6. | 0.60 | 1970 | 0.55 | 1947 | 0.24 | 1875 | 0.31 | 1897 | 0.59 | 1989 | 0.48 | 1953 |
| 7. | 0.40 | 1931 | 0.48 | 1941 | 0.99 | 1930 | 1.32 | 1948 | 1.18 | 1952 | 0.83 | 2004 | 7. | 0.60 | 1936 | 0.60 | 1933 | 0.25 | 1871 | 0.46 | 1965 | 0.61 | 1903 | 0.58 | 1950 |
| 8. | 0.49 | 1881 | 0.52 | 1996 | 1.09 | 1966 | 1.32 | 1930 | 1.26 | 1922 | 0.90 | 1968 | 8. | 0.60 | 1918 | 0.61 | 1957 | 0.40 | 1953 | 0.50 | 1904 | 0.71 | 1962 | 0.64 | 1908 |
| 9. | 0.53 | 1985 | 0.56 | 1927 | 1.14 | 1954 | 1.37 | 1976 | 1.38 | 1965 | 0.99 | 1952 | 9. | 0.64 | 1911 | 0.64 | 1984 | 0.43 | 1985 | 0.55 | 1872 | 0.72 | 1999 | 0.66 | 1980 |
| 10. | 0.53 | 1925 | 0.64 | 1970 | 1.22 | 1986 | 1.37 | 1959 | 1.44 | 1988 | 1.12 | 1894 | 10. | 0.73 | 1920 | 0.65 | 1893 | 0.56 | 1952 | 0.65 | 1956 | 0.73 | 1976 | 0.67 | 1963 |
| 11. | 0.54 | 1875 | 0.67 | 1954 | 1.25 | 1914 | 1.48 | 1968 | 1.45 | 1992 | 1.19 | 1992 | 11. | 0.76 | 1984 | 0.66 | 1909 | 0.64 | 1901 | 0.65 | 1891 | 0.77 | 1970 | 0.69 | 1989 |
| 12. | 0.60 | 1943 | 0.74 | 1972 | 1.27 | 1994 | 1.54 | 1980 | 1.48 | 1925 | 1.19 | 1972 | 12. | 0.90 | 1974 | 0.66 | 1897 | 0.74 | 1995 | 0.68 | 1879 | 0.78 | 1965 | 0.78 | 1917 |
| 13. | 0.63 | 1980 | 0.74 | 1920 | 1.27 | 1871 | 1.60 | 1949 | 1.53 | 1913 | 1.34 | 1911 | 13. | 0.98 | 1906 | 0.76 | 1978 | 0.76 | 1960 | 0.69 | 1968 | 0.78 | 1917 | 0.83 | 1998 |
| 14. | 0.64 | 1981 | 0.76 | 1943 | 1.33 | 1932 | 1.65 | 1971 | 1.58 | 1926 | 1.46 | 1870 | 14. | 1.06 | 1947 | 0.76 | 1901 | 0.78 | 1990 | 0.73 | 1964 | 0.83 | 1953 | 0.86 | 1996 |
| 15. | 0.64 | 1872 | 0.83 | 2002 | 1.45 | 2001 | 1.68 | 1889 | 1.59 | 1897 | 1.47 | 1918 | 15. | 1.10 | 1937 | 0.85 | 1936 | 0.88 | 1957 | 0.76 | 1887 | 0.89 | 1875 | 0.90 | 1930 |
| 16. | 0.65 | 1966 | 0.83 | 1902 | 1.45 | 1900 | 1.74 | 1987 | 1.62 | 1979 | 1.53 | 1920 | 16. | 1.20 | 1916 | 0.85 | 1889 | 0.90 | 1976 | 0.85 | 1886 | 1.12 | 1943 | 1.00 | 1941 |
| 17. | 0.65 | 1900 | 0.84 | 1904 | 1.47 | 2005 | 1.76 | 1919 | 1.69 | 1930 | 1.55 | 1913 | 17. | 1.23 | 1983 | 0.86 | 1953 | 1.00 | 1938 | 0.86 | 1890 | 1.14 | 2002 | 1.03 | 1898 |
| 18 | 0.65 | 1887 | 0.85 | 2004 | 1.50 | 1925 | 1.78 | 1916 | 1.72 | 1994 | 1.59 | 1966 | 18 | 1.26 | 1966 | 0.87 | 1898 | 1.07 | 1870 | 0.90 | 1915 | 1.15 | 1944 | 1.03 | 1889 |
| 19. | 0.66 | 1971 | 0.87 | 1885 | 1.62 | 1889 | 1.83 | 1900 | 1.77 | 1953 | 1.67 | 1979 | 19. | 1.26 | 1950 | 0.93 | 1872 | 1.09 | 1999 | 0.95 | 1989 | 1.19 | 1954 | 1.05 | 1896 |
| 20. | 0.72 | 1983 | 0.88 | 1929 | 1.63 | 1939 | 1.84 | 2000 | 1.97 | 1939 | 1.72 | 1926 | 20. | 1.30 | 1940 | 0.98 | 1991 | 1.11 | 1939 | 1.07 | 1944 | 1.19 | 1937 | 1.06 | 1986 |
| 21. | 0.73 | 1956 | 0.88 | 1877 | 1.67 | 1936 | 1.88 | 1888 | 2.00 | 1987 | 1.97 | 1988 | 21. | 1.31 | 1953 | 0.98 | 1960 | 1.13 | 1963 | 1.09 | 1874 | 1.21 | 1901 | 1.12 | 1935 |
| 22. | 0.74 | 1963 | 0.95 | 1983 | 1.72 | 1919 | 1.90 | 1924 | 2.04 | 1970 | 1.98 | 1931 | 22. | 1.35 | 1894 | 1.04 | 1938 | 1.17 | 1981 | 1.12 | 1938 | 1.25 | 1980 | 1.13 | 1976 |
| 23. | 0.74 | 1922 | 0.96 | 1933 | 1.75 | 1942 | 1.92 | 1914 | 2.05 | 1870 | 2.00 | 1997 | 23. | 1.37 | 1963 | 1.14 | 1887 | 1.18 | 1994 | 1.20 | 1896 | 1.28 | 1995 | 1.15 | 1926 |
| 24. | 0.77 | 1972 | 0.98 | 1991 | 1.80 | 1917 | 1.94 | 2004 | 2.08 | 1903 | 2.00 | 1874 | 24. | 1.38 | 1945 | 1.21 | 1884 | 1.21 | 1956 | 1.21 | 1992 | 1.36 | 1893 | 1.17 | 1871 |
| 25. | 0.79 | 1884 | 1.04 | 1973 | 1.81 | 1971 | 1.98 | 1963 | 2.09 | 1932 | 2.04 | 1953 | 25. | 1.42 | 1994 | 1.27 | 1976 | 1.24 | 1983 | 1.22 | 1945 | 1.38 | 1878 | 1.18 | 1910 |
| 26. | 0.83 | 1976 | 1.08 | 1976 | 1.83 | 1916 | 1.98 | 1906 | 2.11 | 1969 | 2.16 | 1994 | 26. | 1.44 | 1997 | 1.30 | 1900 | 1.24 | 1908 | 1.23 | 1875 | 1.41 | 1960 | 1.22 | 1919 |
| 27. | 0.84 | 1984 | 1.08 | 1921 | 1.88 | 2000 | 1.98 | 1899 | 2.13 | 1977 | 2.17 | 1940 | 27. | 1.47 | 2002 | 1.35 | 1943 | 1.27 | 1899 | 1.25 | 1906 | 1.41 | 1929 | 1.24 | 1964 |
| 28. | 0.85 | 1948 | 1.09 | 1968 | 1.92 | 1892 | 2.05 | 1942 | 2.18 | 1928 | 2.19 | 1980 | 28. | 1.47 | 1901 | 1.36 | 1967 | 1.31 | 1888 | 1.37 | 1903 | 1.49 | 1894 | 1.25 | 1939 |
| 29. | 0.85 | 1911 | 1.12 | 1907 | 1.92 | 1879 | 2.10 | 1989 | 2.26 | 1911 | 2.19 | 1944 | 29. | 1.50 | 1919 | 1.38 | 1937 | 1.34 | 1879 | 1.45 | 1921 | 1.53 | 1924 | 1.25 | 1903 |
| 30. | 0.90 | 1942 | 1.12 | 1905 | 1.95 | 1881 | 2.10 | 1886 | 2.27 | 1940 | 2.31 | 1946 | 30. | 1.50 | 1891 | 1.53 | 1956 | 1.41 | 1915 | 1.47 | 1972 | 1.53 | 1914 | 1.32 | 1893 |