Water Resources of the United States
Historical Maps of Monthly and Annual Streamflow Conditions by Water YearExplanation of monthly and annual streamflow map content Monthly (Water Year) Streamflow Maps2000 || 2001 || 2002 ||1990 || 1991 || 1992 || 1993 || 1994 || 1995 || 1996 || 1997 || 1998 || 1999 || 1980 || 1981 || 1982 || 1983 || 1984 || 1985 || 1986 || 1987 || 1988 || 1989 || 1970 || 1971 || 1972 || 1973 || 1974 || 1975 || 1976 || 1977 || 1978 || 1979 || 1960 || 1961 || 1962 || 1963 || 1964 || 1965 || 1966 || 1967 || 1968 || 1969 || 1950 || 1951 || 1952 || 1953 || 1954 || 1955 || 1956 || 1957 || 1958 || 1959 || 1945 || 1946 || 1947 || 1948 || 1949 || Animation of Monthly (Water Year) Streamflow Maps20001990 || 1991 || 1992 || 1993 || 1994 || 1995 || 1996 || 1997 || 1998 || 1999 1980 || 1981 || 1982 || 1983 || 1984 || 1985 || 1986 || 1987 || 1988 || 1989 1970 || 1971 || 1972 || 1973 || 1974 || 1975 || 1976 || 1977 || 1978 || 1979 1960 || 1961 || 1962 || 1963 || 1964 || 1965 || 1966 || 1967 || 1968 || 1969 1950 || 1951 || 1952 || 1953 || 1954 || 1955 || 1956 || 1957 || 1958 || 1959 1944 || 1945 || 1946 || 1947 || 1948 || 1949 || Annual (Water Year) Streamflow Maps1990 || 1991 || 1992 || 1993 || 1994 || 1995 || 1996 ||1980 || 1981 || 1982 || 1983 || 1984 || 1985 || 1986 || 1987 || 1988 || 1989 || 1970 || 1971 || 1972 || 1973 || 1974 || 1975 || 1976 || 1977 || 1978 || 1979 || 1960 || 1961 || 1962 || 1963 || 1964 || 1965 || 1966 || 1967 || 1968 || 1969 || 1950 || 1951 || 1952 || 1953 || 1954 || 1955 || 1956 || 1957 || 1958 || 1959 || 1940 || 1941 || 1942 || 1943 || 1944 || 1945 || 1946 || 1947 || 1948 || 1949 || 1930 || 1931 || 1932 || 1933 || 1934 || 1935 || 1936 || 1937 || 1938 || 1939 || 1921 || 1922 || 1923 || 1924 || 1925 || 1926 || 1927 || 1928 || 1929 || Animation of Annual (Water Year) Streamflow Maps1921-1996Explanation of monthly and annual streamflow map content
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