Results
| Country: | U.S.A.
| | Station: | ROCKTON, IL | | River: | ROCK RIVER | | Area: | 16479.19 | | Lat: | 42.44 | | Lon: | -89.07 | | Source: | USGS | | PointID: | 5437500 | | Area Units: | km2 | | Discharge Units: | m3/sec | | Starting Year: | 1903 | | Ending Year: | 1993 | | Total Years: | 91 | | Total Usable Years: | 66 | |
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| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
|---|
| 1903 | -9999 | -9999 | -9999 | -9999 | -9999 | 57.11 | 159.34 | 120.98 | 158.58 | 136.53 | 79.44 | 60.93 | -9999 |
| 1904 | 44.17 | 46.16 | 403.75 | 305.8 | 153.4 | 71.19 | 46.91 | 43.99 | 68.52 | 88.69 | 54.6 | 52.37 | 114.96 |
| 1905 | 61.45 | 50.4 | 360.17 | 284.63 | 191.58 | 183.9 | 112.34 | 74.23 | 77.05 | 70.46 | 72.15 | 79.41 | 134.81 |
| 1906 | 272.16 | 280.3 | 352.58 | 259.37 | 103.48 | 66.82 | 68.22 | -9999 | -9999 | 48.6 | 74.39 | 93.96 | -9999 |
| 1907 | 196.64 | 184.42 | 136.49 | 210.02 | 113.81 | 148.04 | 168.7 | 112.61 | 127.13 | 126.28 | 73.76 | -9999 | -9999 |
| 1908 | 65.98 | 187.36 | 309.12 | 190.38 | 257.49 | 181.51 | 99.92 | 51.18 | 41.75 | 42.82 | 48.79 | 59.74 | 128 |
| 1909 | 108.14 | 212.57 | 243.11 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1910 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1911 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1912 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1913 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1914 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 96.58 | 70.46 | 73.4 | -9999 |
| 1915 | 76.46 | 225.83 | 267.01 | 114.17 | 92.17 | 175.56 | 87.02 | 140.34 | 269.54 | 183.64 | 110.73 | 127.5 | 155.83 |
| 1916 | 256.86 | 300.16 | 269.02 | 314.9 | 190.77 | 231.19 | 80.53 | 58.31 | 91.56 | 100.84 | 110.64 | 93.71 | 174.87 |
| 1917 | 50.75 | 52.2 | 256.45 | 200.2 | 129.89 | 272.73 | 170.43 | 60.1 | 50.89 | 75.96 | 108.84 | 75.84 | 125.36 |
| 1918 | 54.69 | 260.94 | 487.98 | 213.5 | 140.77 | 83.47 | 42.79 | 40.31 | 40.38 | 39.41 | 49.96 | 68.62 | 126.9 |
| 1919 | 84.95 | 77.4 | 262.39 | 136.74 | 237.86 | 90.61 | 53.8 | 59.47 | 62.3 | -9999 | -9999 | -9999 | -9999 |
| 1920 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1921 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1922 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1923 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1924 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1925 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1926 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1927 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1928 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1929 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1930 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1931 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1932 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1933 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1934 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1935 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1936 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1937 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1938 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 |
| 1939 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | -9999 | 28.32 | 31.15 | 31.15 | -9999 |
| 1940 | 22.65 | 28.32 | 65.13 | 77.3 | 53.42 | 64.62 | 103.59 | 108.9 | 76.62 | 45.22 | 50.33 | 68.51 | 63.72 |
| 1941 | 88.75 | 90.13 | 174.95 | 186.52 | 85.7 | 90.6 | 42.62 | 31.38 | 89.77 | 108.5 | 105.43 | 73.33 | 97.31 |
| 1942 | 66.54 | 80.26 | 109.18 | 87.09 | 67.87 | 123.23 | 62.4 | 114.72 | 104.58 | 70.27 | 117.19 | 91.01 | 91.2 |
| 1943 | 100.65 | 155.48 | 323.62 | 230.41 | 116.89 | 141.08 | 80.9 | 81.76 | 53.12 | 44.14 | 56.56 | 52.07 | 119.72 |
| 1944 | 50.49 | 109.99 | 274.36 | 145.53 | 134.79 | 145.51 | 77.69 | 41 | 46.46 | 38.62 | 56.36 | 43.82 | 97.05 |
| 1945 | 37.63 | 44.9 | 145.82 | 95.52 | 126.79 | 133.05 | 86.14 | 56.27 | 78.24 | 89.58 | 72.85 | 69.57 | 86.36 |
| 1946 | 236.42 | 91.32 | 354.79 | 157.52 | 61.87 | 49.09 | 37.87 | 30.08 | 35.46 | 32.72 | 44.58 | 33.91 | 97.14 |
| 1947 | 53.77 | 52.72 | 119.6 | 190.14 | 120.55 | 193.24 | 104.72 | 52.31 | 62.27 | 47.51 | 66.53 | 81.85 | 95.43 |
| 1948 | 43.54 | 89.74 | 392.44 | 194.76 | 187.64 | 67 | 48.32 | 38.44 | 30.01 | 29.17 | 47.83 | 43.25 | 101.01 |
| 1949 | 102.13 | 94.74 | 250.59 | 130.91 | 53.72 | 48.36 | 69.61 | 36.63 | 27.03 | 30.79 | 31.94 | 36.47 | 76.08 |
| 1950 | 90.78 | 77.69 | 223.8 | 205.88 | 100.01 | 117.39 | 184.4 | 131.54 | 97.74 | 60.78 | 47.61 | 45.54 | 115.26 |
| 1951 | 39.83 | 92.19 | 267.68 | 277.32 | 228.18 | 127.92 | 148.49 | 116.36 | 70.6 | 135.89 | 195.86 | 107.9 | 150.69 |
| 1952 | 155.47 | 164.57 | 357.62 | 312.07 | 132.98 | 141.27 | 128.94 | 160.57 | 75.45 | 48.29 | 67.93 | 86.53 | 152.64 |
| 1953 | 68.84 | 191.64 | 224.47 | 160.69 | 114.73 | 65.33 | 47.45 | 83.27 | 37.99 | 34.67 | 36.47 | 46.34 | 92.66 |
| 1954 | 35.31 | 57.33 | 47.91 | 83.23 | 78.28 | 132.92 | 143.07 | 68.01 | 45.14 | 162.44 | 79.76 | 71.39 | 83.73 |
| 1955 | 82.61 | 115.69 | 172.01 | 157.87 | 101.9 | 105.41 | 65.28 | 60.05 | 31.97 | 36.86 | 45.33 | 37.98 | 84.41 |
| 1956 | 36.16 | 49.23 | 78.02 | 108.78 | 142.89 | 59.45 | 61.44 | 38.65 | 55.59 | 30.23 | 41.38 | 42.61 | 62.04 |
| 1957 | 45.44 | 76.58 | 63.06 | 83.63 | 79.95 | 123.62 | 63.06 | 38.01 | 36.86 | 30.96 | 48.29 | 51.45 | 61.74 |
| 1958 | 42.81 | 43.84 | 96.52 | 70.12 | 31.23 | 41.76 | 31.39 | 22.46 | 22.08 | 30.89 | 39.56 | 28.42 | 41.76 |
| 1959 | 22.99 | 44.61 | 269.03 | 465.44 | 140.74 | 48.49 | 58.12 | 63.29 | 48.66 | 132.09 | 145.2 | 109.51 | 129.01 |
| 1960 | 267.07 | 117.32 | 107.72 | 427.78 | 369.31 | 162.32 | 126.11 | 142.93 | 129.41 | 131.96 | 161.26 | 96.02 | 186.6 |
| 1961 | 61.97 | 73.02 | 251.91 | 209.28 | 120.15 | 64.75 | 56.11 | 49.6 | 110.61 | 114.42 | 266.71 | 152.42 | 127.58 |
| 1962 | 97.1 | 88.29 | 243.02 | 348.43 | 158.3 | 81.61 | 86.6 | 61.61 | 57.85 | 58.67 | 58.52 | 53.46 | 116.12 |
| 1963 | 47.28 | 40.05 | 197.09 | 111.9 | 61.55 | 53.13 | 36.24 | 29.06 | 30.38 | 29.62 | 35.33 | 33.9 | 58.79 |
| 1964 | 37.25 | 36.69 | 77.44 | 93.31 | 77.74 | 40.99 | 32.63 | 28.22 | 27.87 | 24.26 | 32.58 | 32.94 | 45.16 |
| 1965 | 58.7 | 135.79 | 226.73 | 261.67 | 89.45 | 40.14 | 29.9 | 48.12 | 207.7 | 196.43 | 115.14 | 142.78 | 129.38 |
| 1966 | 130.99 | 197.16 | 190.31 | 149.78 | 103.07 | 95.19 | 58.19 | 39.73 | 35.84 | 33.27 | 38.62 | 57.19 | 94.11 |
| 1967 | 69.76 | 75.39 | 139.74 | 143.29 | 94.14 | 139.23 | 68.99 | 45.66 | 35.26 | 46.63 | 117.74 | 72.18 | 87.33 |
| 1968 | 56.48 | 76.21 | 54.36 | 89.51 | 87.2 | 87.41 | 132.07 | 57.95 | 79.89 | 61.42 | 58.45 | 79.9 | 76.74 |
| 1969 | 117.49 | 95.23 | 174.38 | 195.84 | 103.17 | 142.32 | 225.41 | 80.4 | 47.52 | 62.19 | 63.25 | 51.83 | 113.25 |
| 1970 | 44.91 | 55.2 | 108.45 | 81.18 | 109.42 | 104.4 | 40.54 | 33.07 | 85.33 | 75.63 | 95.54 | 76.71 | 75.87 |
| 1971 | 62.88 | 174.98 | 288.09 | 222.38 | 117.81 | 75.81 | 49.51 | 38.24 | 33.02 | 34.12 | 51.77 | 91.45 | 103.34 |
| 1972 | 68.21 | 40.8 | 181.94 | 216.55 | 204.88 | 78.75 | 83.55 | 142.34 | 219.55 | 239.21 | 211.42 | 117.36 | 150.38 |
| 1973 | 248.18 | 223.05 | 373.98 | 400.25 | 503.31 | 277.37 | 131.34 | 89.59 | 106.18 | 156.19 | 119 | 151.44 | 231.66 |
| 1974 | 163.39 | 226.09 | 394.12 | 348.68 | 357.02 | 313.27 | 154.22 | 98.19 | 73.9 | 79.7 | 96.36 | 104.96 | 200.83 |
| 1975 | 113.61 | 82.16 | 314.81 | 359.47 | 246.05 | 151.69 | 104.53 | 77.47 | 68.98 | 51.75 | 66.84 | 98.65 | 144.67 |
| 1976 | 56.36 | 93.3 | 291.29 | 189.94 | 153.07 | 64.19 | 40.37 | 36.24 | 33.6 | 35.19 | 38.67 | 36.34 | 89.05 |
| 1977 | 27.76 | 51.74 | 91.52 | 100.4 | 45.59 | 35.34 | 54.37 | 67.27 | 53.71 | 73.55 | 81.01 | 82.98 | 63.77 |
| 1978 | 71.92 | 49.71 | 83.52 | 176.79 | 181.16 | 186 | 276.24 | 85.66 | 104.8 | 114.37 | 93.98 | 91.1 | 126.27 |
| 1979 | 63.21 | 65.88 | 274.04 | 449.3 | 231.07 | 124.74 | 90.93 | 163.11 | 112.62 | 67.51 | 88.65 | 106.77 | 153.15 |
| 1980 | 122.1 | 101.81 | 113.83 | 161.43 | 93.98 | 122.44 | 60.04 | 115.87 | 204.85 | 186.55 | 104.17 | 113.53 | 125.05 |
| 1981 | 66.17 | 110.08 | 164.44 | 160.29 | 90.97 | 99.93 | 65.71 | 85.5 | 165.17 | 177.31 | 139.76 | 126.01 | 120.95 |
| 1982 | 68.42 | 85.17 | 309.81 | 350.03 | 181.3 | 152.18 | 185.99 | 139.34 | 90.22 | 88.52 | 199.69 | 256.24 | 175.58 |
| 1983 | 141.44 | 169.14 | 245.88 | 331.54 | 202.22 | 149.03 | 104.54 | 68.19 | 79.35 | 83.11 | 98.05 | 132.72 | 150.43 |
| 1984 | 96.53 | 175.37 | 172.95 | 149.21 | 206.82 | 209.96 | 187.01 | 73.51 | 60.73 | 141.34 | 240.87 | 160.49 | 156.23 |
| 1985 | 149.22 | 171.17 | 378.21 | 265.2 | 129.68 | 73.04 | 60.7 | 60.9 | 82.83 | 147.17 | 320.44 | 232.96 | 172.63 |
| 1986 | 149.17 | 174.68 | 348.94 | 296.95 | 177.22 | 112.75 | 139 | 102.03 | 198.96 | 377.76 | 195.38 | 144.93 | 201.48 |
| 1987 | 102.48 | 101.97 | 138.98 | 166.91 | 167.42 | 99.21 | 73.24 | 115.71 | 112.3 | 91.35 | 104.03 | 160.64 | 119.52 |
| 1988 | 162.23 | 195.73 | 164.76 | 186.97 | 101.32 | 47.23 | 39.66 | 34.06 | 34.13 | 41.72 | 60.89 | 67.13 | 94.65 |
| 1989 | 69.78 | 68.52 | 144.46 | 127.68 | 60.87 | 53.83 | 32.25 | 46.28 | 78.33 | 36.81 | 43.28 | 28.99 | 65.92 |
| 1990 | 59.44 | 74.9 | 198.36 | 134.46 | 126.56 | 93.93 | 139.84 | 103.89 | 58.29 | 59.12 | 69.43 | 84.87 | 100.26 |
| 1991 | 60.97 | 94.63 | 254.63 | 260.73 | 150.25 | 95.83 | 62.21 | 55.72 | 59.46 | 77.13 | 175.99 | 231.35 | 131.57 |
| 1992 | 151.56 | 145.19 | 222.33 | 200.28 | 134.71 | 53.4 | 69.27 | 47.99 | 94.65 | 82.9 | 147.92 | 184.38 | 127.88 |
| 1993 | 195.85 | 135.53 | 267.67 | 524.62 | 369.73 | 368.31 | 481.39 | 255.97 | 200.95 | -9999 | -9999 | -9999 | -9999 |
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| Avg | 94.69 | 114.32 | 223.82 | 211.6 | 146.53 | 117.4 | 97.14 | 75.85 | 82.62 | 85.46 | 93.43 | 88.95 | 116.26 |
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| Std Dev | 62.09 |
65.65 |
102.27 |
104.7 |
84.78 |
67.76 |
70.53 |
42.82 |
53.74 |
61.66 |
60.34 |
50.11 |
40.06 |
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| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Avg Annual |
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