"station_id" "year" "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec" 01010500 1946 11.47 151.51 141.84 55.45 01010500 1947 30.10 55.19 40.35 214.98 946.60 306.91 184.52 62.61 26.21 23.04 17.13 19.92 01010500 1948 9.67 5.69 21.00 362.66 512.04 71.09 46.04 43.03 16.98 80.05 115.83 84.58 01010500 1949 33.35 18.87 30.15 471.19 244.88 76.94 25.61 23.67 43.35 31.04 66.65 73.64 01010500 1950 76.36 31.50 33.40 250.86 265.42 166.45 72.81 37.56 62.64 62.92 265.26 276.98 01010500 1951 32.82 39.44 33.49 639.69 284.53 98.12 144.95 63.44 42.40 53.23 191.12 88.18 01010500 1952 40.78 25.23 20.65 331.23 514.64 212.13 26.54 19.89 12.99 113.59 80.61 46.93 01010500 1953 35.27 47.15 70.74 627.03 343.04 33.58 27.86 7.49 11.23 19.55 48.92 94.20 01010500 1954 21.95 22.16 50.92 463.56 438.01 270.15 168.09 156.22 216.76 254.28 154.79 76.58 01010500 1955 44.18 30.20 46.19 498.83 528.88 112.51 38.57 72.03 29.88 20.78 63.92 17.66 01010500 1956 17.59 13.17 10.70 157.13 452.37 189.24 68.96 37.62 41.04 60.62 28.16 25.30 01010500 1957 12.79 12.92 21.88 253.22 221.22 139.77 122.54 63.24 56.97 60.79 181.04 193.71 01010500 1958 71.29 22.25 23.45 532.42 346.60 136.94 150.95 246.87 106.87 70.09 100.27 45.99 01010500 1959 21.42 10.03 19.40 367.49 312.28 211.31 87.71 129.86 99.96 153.68 196.39 104.24 01010500 1960 30.15 28.97 24.68 306.97 656.07 103.27 45.85 16.06 25.33 45.30 106.09 51.56 01010500 1961 19.51 11.88 13.15 132.37 993.92 182.21 45.32 52.13 119.32 45.57 42.60 53.81 01010500 1962 34.79 16.99 14.26 299.38 363.45 110.99 138.98 91.92 56.99 55.25 210.50 56.98 01010500 1963 31.24 15.14 13.52 279.86 563.90 42.70 59.53 114.75 131.92 103.93 288.12 89.04 01010500 1964 18.41 16.83 35.78 266.34 303.23 89.87 73.82 48.57 35.67 32.44 55.20 66.75 01010500 1965 61.90 24.52 28.05 113.24 239.20 125.10 26.35 57.81 133.81 155.40 89.28 42.84 01010500 1966 41.70 36.88 68.26 362.50 394.05 78.68 43.82 29.55 49.56 133.07 150.52 121.38 01010500 1967 32.38 17.76 13.49 118.20 494.68 111.12 59.11 87.51 132.60 131.30 89.17 84.04 01010500 1968 40.58 48.29 68.59 659.40 160.26 32.62 42.84 12.83 16.68 19.59 22.98 25.50 01010500 1969 18.43 18.33 11.82 252.87 876.53 87.32 38.31 54.87 115.88 57.00 253.30 96.72 01010500 1970 64.11 50.15 37.56 277.94 533.83 133.54 45.51 14.67 65.61 188.54 104.86 36.77 01010500 1971 15.99 11.40 15.25 141.77 695.09 47.65 40.06 185.50 162.26 91.13 29.89 27.29 01010500 1972 20.63 15.85 40.73 143.21 829.05 162.37 125.78 158.44 58.71 152.99 112.63 59.93 01010500 1973 59.16 88.72 147.75 652.75 515.93 121.03 45.88 81.24 81.34 87.89 47.73 158.55 01010500 1974 78.90 43.11 96.52 210.68 937.11 122.53 67.22 35.33 48.27 33.92 55.73 82.16 01010500 1975 34.14 17.20 38.79 210.96 684.24 144.37 34.80 19.71 59.41 94.60 132.33 42.66 01010500 1976 24.17 51.27 62.20 786.83 510.38 76.80 256.00 301.61 104.90 213.58 117.77 35.64 01010500 1977 16.34 15.11 48.65 570.02 368.69 167.24 40.44 59.11 80.19 319.35 109.51 55.78 01010500 1978 86.63 54.51 28.52 268.88 691.60 147.81 29.60 16.67 48.62 56.42 59.63 26.76 01010500 1979 49.62 56.20 261.91 613.32 402.19 203.31 37.51 32.09 171.24 94.20 112.01 63.88 01010500 1980 35.34 11.90 16.42 312.87 165.09 53.26 98.04 54.58 81.44 137.62 78.16 84.37 01010500 1981 27.39 110.48 88.82 476.34 253.17 138.60 93.02 332.36 200.10 290.69 135.35 50.23 01010500 1982 20.13 17.17 27.49 442.55 516.70 70.23 24.95 32.89 90.20 58.26 133.41 121.74 01010500 1983 75.46 35.09 47.88 738.91 509.03 172.49 34.24 15.76 20.77 59.24 188.52 114.89 01010500 1984 41.76 51.74 55.22 559.80 653.32 220.55 292.37 66.02 28.22 42.68 100.20 61.37 01010500 1985 20.39 11.35 27.77 358.04 326.00 118.79 115.09 35.07 17.34 80.79 86.76 45.02 01010500 1986 39.05 89.53 35.37 500.14 244.86 119.04 146.48 200.50 137.39 125.00 83.59 88.43 01010500 1987 36.09 17.60 60.23 603.10 75.91 97.85 72.27 18.53 49.09 84.62 99.14 104.25 01010500 1988 19.83 22.07 21.82 455.35 232.78 37.72 67.20 66.09 40.02 109.35 189.31 43.93 01010500 1989 18.12 13.16 15.69 381.24 404.84 124.05 23.36 20.61 41.37 52.07 132.08 29.42 01010500 1990 39.57 50.38 157.92 466.66 299.39 147.05 42.22 134.90 57.19 312.04 163.07 157.64 01010500 1991 66.35 31.71 57.49 691.61 339.36 46.91 22.55 23.15 34.28 187.81 93.71 60.66 01010500 1992 45.34 22.57 50.78 411.08 295.78 132.65 171.87 100.59 45.68 67.12 88.02 29.04 01010500 1993 34.53 12.44 11.80 566.01 202.32 185.66 34.63 56.62 91.03 189.22 173.56 103.94 01010500 1994 28.84 30.73 36.91 516.40 523.85 282.87 133.93 55.49 33.95 38.32 159.05 57.96 01010500 1995 126.31 40.94 140.47 372.16 303.22 80.45 49.51 22.38 13.16 96.86 230.03 30.07 01010500 1996 112.48 182.81 93.72 482.05 470.83 130.13 172.20 47.15 106.34 76.48 69.14 152.29 01010500 1997 40.55 29.13 46.02 345.37 743.24 94.76 35.37 31.08 28.80 20.38 113.98 19.70 01010500 1998 24.68 33.91 165.97 699.33 126.90 35.72 78.02 26.12 76.52