The data you requested are contained in these files:

    ulwrf.sfc.1836.nc
    ulwrf.sfc.1837.nc
    ulwrf.sfc.1838.nc
    ulwrf.sfc.1839.nc
    ulwrf.sfc.1840.nc
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    ulwrf.sfc.1855.nc
    ulwrf.sfc.1856.nc
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    ulwrf.sfc.1858.nc
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    ulwrf.sfc.1860.nc
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    ulwrf.sfc.1864.nc
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    ulwrf.sfc.1867.nc
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    ulwrf.sfc.1875.nc
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    ulwrf.sfc.1880.nc
    ulwrf.sfc.1881.nc
    ulwrf.sfc.1882.nc
    ulwrf.sfc.1883.nc
    ulwrf.sfc.1884.nc
    ulwrf.sfc.1885.nc
    ulwrf.sfc.1886.nc
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    ulwrf.sfc.1888.nc
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    ulwrf.sfc.1890.nc
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    ulwrf.sfc.1892.nc
    ulwrf.sfc.1893.nc
    ulwrf.sfc.1894.nc
    ulwrf.sfc.1895.nc
    ulwrf.sfc.1896.nc
    ulwrf.sfc.1897.nc
    ulwrf.sfc.1898.nc
    ulwrf.sfc.1899.nc
    ulwrf.sfc.1900.nc
    ulwrf.sfc.1901.nc
    ulwrf.sfc.1902.nc
    ulwrf.sfc.1903.nc
    ulwrf.sfc.1904.nc
    ulwrf.sfc.1905.nc
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    ulwrf.sfc.1910.nc
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    ulwrf.sfc.1917.nc
    ulwrf.sfc.1918.nc
    ulwrf.sfc.1919.nc
    ulwrf.sfc.1920.nc
    ulwrf.sfc.1921.nc
    ulwrf.sfc.1922.nc
    ulwrf.sfc.1923.nc
    ulwrf.sfc.1924.nc
    ulwrf.sfc.1925.nc
    ulwrf.sfc.1926.nc
    ulwrf.sfc.1927.nc
    ulwrf.sfc.1928.nc
    ulwrf.sfc.1929.nc
    ulwrf.sfc.1930.nc
    ulwrf.sfc.1931.nc
    ulwrf.sfc.1932.nc
    ulwrf.sfc.1933.nc
    ulwrf.sfc.1934.nc
    ulwrf.sfc.1935.nc
    ulwrf.sfc.1936.nc
    ulwrf.sfc.1937.nc
    ulwrf.sfc.1938.nc
    ulwrf.sfc.1939.nc
    ulwrf.sfc.1940.nc
    ulwrf.sfc.1941.nc
    ulwrf.sfc.1942.nc
    ulwrf.sfc.1943.nc
    ulwrf.sfc.1944.nc
    ulwrf.sfc.1945.nc
    ulwrf.sfc.1946.nc
    ulwrf.sfc.1947.nc
    ulwrf.sfc.1948.nc
    ulwrf.sfc.1949.nc
    ulwrf.sfc.1950.nc
    ulwrf.sfc.1951.nc
    ulwrf.sfc.1952.nc
    ulwrf.sfc.1953.nc
    ulwrf.sfc.1954.nc
    ulwrf.sfc.1955.nc
    ulwrf.sfc.1956.nc
    ulwrf.sfc.1957.nc
    ulwrf.sfc.1958.nc
    ulwrf.sfc.1959.nc
    ulwrf.sfc.1960.nc
    ulwrf.sfc.1961.nc
    ulwrf.sfc.1962.nc
    ulwrf.sfc.1963.nc
    ulwrf.sfc.1964.nc
    ulwrf.sfc.1965.nc
    ulwrf.sfc.1966.nc
    ulwrf.sfc.1967.nc
    ulwrf.sfc.1968.nc
    ulwrf.sfc.1969.nc
    ulwrf.sfc.1970.nc
    ulwrf.sfc.1971.nc
    ulwrf.sfc.1972.nc
    ulwrf.sfc.1973.nc
    ulwrf.sfc.1974.nc
    ulwrf.sfc.1975.nc
    ulwrf.sfc.1976.nc
    ulwrf.sfc.1977.nc
    ulwrf.sfc.1978.nc
    ulwrf.sfc.1979.nc
    ulwrf.sfc.1980.nc