"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 01018000 1940 19.55 4.93 01018000 1941 4.47 1.98 1.92 27.06 7.03 2.38 1.25 0.56 0.90 2.37 6.61 2.61 01018000 1942 5.01 1.68 8.88 37.26 13.29 12.70 2.42 0.81 0.46 1.04 2.91 2.25 01018000 1943 0.69 1.82 4.39 19.08 25.83 5.13 2.41 1.39 1.20 8.80 17.95 2.86 01018000 1944 0.69 0.50 1.66 13.03 12.47 5.00 1.70 0.62 2.88 15.14 14.51 5.93 01018000 1945 7.58 2.52 9.48 38.89 20.71 4.75 2.14 0.69 2.25 5.42 7.75 5.10 01018000 1946 3.94 2.97 17.89 22.00 15.47 2.83 0.94 0.26 0.19 0.49 2.84 4.00 01018000 1947 1.90 5.87 5.33 26.34 31.67 10.54 8.48 2.84 1.52 0.63 1.84 1.31 01018000 1948 0.59 0.53 3.30 22.31 20.22 5.06 1.14 0.53 0.29 2.18 10.03 7.34 01018000 1949 8.81 2.79 8.59 28.37 7.05 2.59 1.09 0.42 2.04 2.17 6.40 7.48 01018000 1950 6.90 2.80 4.32 30.11 9.08 3.32 3.79 1.92 2.33 1.38 26.44 29.74 01018000 1951 6.66 13.79 7.13 43.88 8.49 4.76 12.17 4.05 3.11 3.04 15.32 11.57 01018000 1952 5.19 4.66 4.18 38.61 13.05 13.82 0.94 0.24 0.19 0.88 1.20 1.93 01018000 1953 2.43 6.92 17.25 37.16 10.33 3.71 0.88 0.32 0.17 0.72 6.25 16.01 01018000 1954 3.95 2.72 10.29 41.94 16.79 13.81 11.92 14.22 20.13 16.16 14.97 7.32 01018000 1955 3.48 4.63 5.00 38.51 15.03 5.07 1.17 1.38 0.58 0.51 0.69 0.33 01018000 1956 3.73 2.16 2.49 26.32 19.10 5.59 4.23 1.77 1.54 3.25 4.00 2.49 01018000 1957 1.90 1.35 3.76 19.45 10.24 2.17 1.10 1.37 0.57 0.78 12.23 26.39 01018000 1958 9.34 6.08 8.61 47.44 14.21 3.07 2.56 3.88 1.82 3.84 7.73 4.94 01018000 1959 2.28 0.94 2.46 42.48 9.78 5.15 2.06 2.04 3.92 7.53 21.26 17.63 01018000 1960 7.11 7.03 3.84 39.46 20.18 4.50 2.07 0.44 0.24 2.08 3.64 6.76 01018000 1961 3.88 2.07 2.98 24.24 50.27 11.26 2.16 1.80 3.87 6.78 7.19 8.84 01018000 1962 4.76 2.20 2.36 20.21 9.86 3.65 7.51 13.79 3.28 3.41 23.08 8.26 01018000 1963 3.20 2.40 2.13 33.54 32.32 2.90 1.37 8.01 4.65 6.10 28.29 9.04 01018000 1964 2.06 2.10 4.63 22.79 10.33 2.61 1.27 0.41 0.33 3.07 3.23 7.84 01018000 1965 8.07 3.29 6.81 18.69 13.53 3.43 1.22 2.77 3.10 4.48 7.92 3.92 01018000 1966 2.85 2.24 12.27 24.74 8.95 2.81 1.70 0.99 0.42 2.93 11.30 6.31 01018000 1967 2.87 1.71 1.23 7.61 25.23 7.50 3.20 2.40 19.10 10.89 11.64 6.14 01018000 1968 3.22 7.09 10.91 33.70 5.43 1.77 1.17 0.45 0.23 1.80 4.57 10.33 01018000 1969 4.22 3.55 4.69 40.21 27.84 5.46 1.26 2.53 10.66 2.79 15.81 13.23 01018000 1970 5.20 11.35 3.55 20.70 22.35 6.36 3.42 3.01 2.95 5.60 5.72 4.36 01018000 1971 3.21 6.24 6.38 36.56 28.53 3.07 0.83 0.42 0.53 0.79 0.92 1.82 01018000 1972 1.83 1.24 6.56 9.01 30.79 13.83 3.24 1.00 1.94 2.39 8.08 6.92 01018000 1973 5.21 10.55 17.15 48.17 23.34 5.79 7.99 1.70 1.04 0.91 2.54 24.08 01018000 1974 5.20 2.56 9.59 27.84 28.60 7.97 2.87 0.94 1.17 1.93 2.25 5.95 01018000 1975 3.01 1.61 3.82 19.31 19.86 12.57 1.38 0.29 0.69 1.74 6.10 6.84 01018000 1976 4.80 13.38 19.75 51.38 22.55 4.90 6.79 10.02 5.00 16.98 12.28 3.25 01018000 1977 1.84 1.06 8.39 41.09 12.78 19.40 4.42 1.81 2.82 18.66 8.49 4.65 01018000 1978 8.50 5.87 5.40 31.85 16.08 3.13 1.58 0.45 0.40 1.33 1.75 1.16 01018000 1979 8.77 9.09 34.95 32.90 17.65 8.76 1.98 3.26 4.53 4.77 11.62 5.56 01018000 1980 4.30 0.92 7.28 25.07 12.16 3.90 4.87 2.74 2.79 7.04 10.93 13.70 01018000 1981 3.26 17.49 8.07 30.12 8.43 7.82 2.63 3.80 12.67 24.41 15.92 16.20 01018000 1982 4.42 3.56 4.01 39.32 9.48 2.42 0.96 2.47 4.55 5.03