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<br />I <br />j <br />I <br />I <br />I <br />t <br />t <br />I <br />J <br />f <br />J <br />t <br />, <br />'I <br />a <br />t <br />f <br />I <br />I <br /> <br />" <br /> <br />The annual precipitation for the Arkansas River Basin in Colorado for 1931- <br />1987 is shown in Table 3-2. The precipitation figures in Table 3-2 are average <br />values for the Arkansas River Drainage (NWS Climatic Division # 1). It should <br />be noted that there is an' extremely wide variation in average annual <br />precipitation throughout the Basin in Colorado. <br /> <br />TABLE 3-2 <br /> <br />Arkansas River Drainage <br />Precipitation <br />(inches) <br /> <br />Year <br />1931 <br />1932 <br />1933 <br />1934 <br />1935 <br />1936 <br />1937 <br />1938 <br />1939 <br />1940 <br />1941 <br />1942 <br />1943 <br />1944 <br />1945 <br />1946 <br />1947 <br />1948 <br />1949 <br />1950 <br />1951 <br />1952 <br />1953 <br />1954 <br />1955 <br />1956 <br />1957 <br />1958 <br />1959 <br /> <br />Total <br />11.51 <br />12.42 <br />15.42 <br />9.68 <br />13.91 <br />14,49 <br />11,47 <br />18.44 <br />10,12 <br />15,57 <br />23,31 <br />21. 63 <br />12,11 <br />17.59 <br />16,23 <br />17,29 <br />17,30 <br />15.00 <br />16.16 <br />12.08 <br />14.76 <br />11.78 <br />13.96 <br />11. 06 <br />13 ,28 <br />10,88 <br />20,34 <br />15.27 <br />15.77 <br /> <br />Year <br />1960 <br />1961 <br />1962 <br />1963. <br />1964 <br />1965 <br />1966 <br />1967 <br />1968 <br />1969 <br />1970 <br />1971 <br />1972 <br />1973 <br />1974 <br />1975 <br />1976 <br />1977 <br />1978 <br />1979 <br />1980 <br />1981 <br />1982 <br />1983 <br />1984 <br />1985 <br />1986 <br />1987 <br /> <br />Total <br />14.47 <br />17,60 <br />11.74 <br />12.09 <br />11.55 <br />20.01 <br />12.24 <br />16.34 <br />13,63 <br />18,98 <br />13,94 <br />13 .89 <br />14,05 <br />15.46 <br />11 ,42 <br />12,26 <br />13,76 <br />14.08 <br />12.86 <br />16.48 <br />14.12 <br />14.35 <br />15.63 <br />14.46 <br />15.90 <br />15.09 <br />15.45 <br />15,65 <br /> <br />A brief description of historical droughts are presented here to describe <br />the effects of such occurrences in the Arkansas River Basin. <br /> <br />c. Droul;ht of 1931-1937. This drought occurred during the period of record <br />used in the operation studies for John Martin Reservoir and Trinidad Lake, The <br />annual rainfall for 1934 is the lowest on record. The drought started out as <br />a mild to moderate drought in September 1931 and intensified to an extreme <br /> <br />3-2 <br />