Susquehanna River Initiative
Bucknell University Environmental Center
Susquehanna River at Harrisburg, Pennsylvania
USGS Gage Station ID: 1570500
Location: Dauphin County, PA (Latitude 40°15'17" Longitude 76°53'11")
Drainage Area: 64,419 km2 (24,100 mi2)
Location: Dauphin County, PA (Latitude 40°15'17" Longitude 76°53'11")
Drainage Area: 64,419 km2 (24,100 mi2)
The table below reports monthly mean discharges in cubic meters per second (m3 sec-1) for the Susquehanna River at Harrisburg, PA for the period 1891 through 2010. As you move your mouse over the table, you can scroll up and down to peruse the records. You can also sort the records in ascending or descending order by clicking on the "up" or "down" triangles next to each column header. You can search for discharges in a given year using the search box. You can also click and drag over various records to select and copy them into your clipboard, which you can then paste into a spreadsheet or text table.
Data in the following table are based on hydrologic records (ft3 sec-1) published online by the U.S. Geological Survey.
Data in the following table are based on hydrologic records (ft3 sec-1) published online by the U.S. Geological Survey.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1891 | 1,828.1 | 4,346.6 | 2,848.7 | 2,315.5 | 557.8 | 737.1 | 632.9 | 885.2 | 688.7 | 542.0 | 983.2 | 1,782.3 |
| 1892 | 2,327.4 | 640.0 | 1,550.3 | 2,410.3 | 1,958.7 | 1,938.0 | 567.2 | 543.7 | 329.3 | 176.2 | 319.7 | 470.6 |
| 1893 | 172.0 | 1,513.5 | 2,843.0 | 3,044.1 | 2,762.0 | 542.3 | 297.0 | 171.3 | 551.9 | 549.6 | 450.2 | 1,171.8 |
| 1894 | 782.4 | 915.8 | 2,021.5 | 1,930.9 | 2,942.1 | 1,453.5 | 295.3 | 195.8 | 508.3 | 754.9 | 1,341.4 | 978.3 |
| 1895 | 1,274.8 | 640.2 | 2,265.3 | 2,520.5 | 727.7 | 319.1 | 268.6 | 155.9 | 155.7 | 97.0 | 182.7 | 560.4 |
| 1896 | 1,369.4 | 1,391.2 | 1,909.1 | 2,621.6 | 371.0 | 559.5 | 445.1 | 422.8 | 135.1 | 995.6 | 1,032.1 | 629.2 |
| 1897 | 450.5 | 1,262.1 | 2,575.4 | 1,619.7 | 1,552.3 | 513.1 | 333.6 | 444.0 | 201.1 | 175.2 | 641.9 | 1,325.2 |
| 1898 | 1,689.9 | 1,492.6 | 2,667.4 | 1,550.9 | 1,680.3 | 580.5 | 236.0 | 757.5 | 329.0 | 952.3 | 1,201.5 | 1,007.2 |
| 1899 | 1,290.7 | 1,089.3 | 2,990.3 | 1,938.6 | 735.1 | 338.4 | 231.8 | 212.9 | 190.6 | 122.8 | 548.8 | 921.1 |
| 1900 | 1,174.0 | 1,791.6 | 1,973.4 | 1,674.9 | 568.9 | 384.0 | 211.0 | 150.2 | 109.0 | 125.9 | 727.5 | 1,045.5 |
| 1901 | 390.5 | 297.6 | 2,359.4 | 3,097.9 | 1,924.7 | 1,594.0 | 395.0 | 964.8 | 640.8 | 393.6 | 424.2 | 2,231.1 |
| 1902 | 1,061.9 | 498.4 | 4,343.8 | 2,029.8 | 439.2 | 366.4 | 2,023.2 | 774.5 | 338.4 | 851.2 | 516.2 | 1,640.7 |
| 1903 | 896.2 | 2,270.7 | 3,383.9 | 1,970.0 | 392.2 | 754.1 | 872.7 | 724.3 | 818.9 | 1,258.4 | 758.6 | 474.0 |
| 1904 | 1,217.9 | 1,053.4 | 3,231.0 | 2,042.5 | 1,145.4 | 855.7 | 534.9 | 312.6 | 251.1 | 446.0 | 320.5 | 319.4 |
| 1905 | 1,289.0 | 356.5 | 2,913.8 | 1,439.6 | 541.4 | 770.8 | 476.9 | 688.4 | 736.8 | 672.2 | 450.0 | 1,639.8 |
| 1906 | 1,329.5 | 615.9 | 1,260.1 | 2,693.2 | 746.7 | 928.2 | 433.5 | 473.7 | 278.4 | 503.8 | 599.2 | 770.2 |
| 1907 | 2,167.9 | 446.3 | 2,343.2 | 1,112.9 | 962.2 | 691.2 | 454.5 | 175.2 | 439.5 | 540.6 | 1,063.6 | 1,870.3 |
| 1908 | 1,281.6 | 1,580.1 | 3,638.7 | 1,651.2 | 2,374.1 | 552.5 | 315.2 | 194.7 | 98.5 | 140.0 | 158.9 | 183.5 |
| 1909 | 866.8 | 2,338.4 | 1,394.9 | 1,874.3 | 1,973.7 | 834.5 | 228.0 | 131.4 | 103.4 | 121.0 | 112.2 | 186.7 |
| 1910 | 805.3 | 495.8 | 3,182.8 | 1,597.9 | 1,081.4 | 1,106.3 | 253.1 | 127.7 | 189.1 | 151.3 | 212.3 | 225.5 |
| 1911 | 1,474.5 | 800.5 | 1,203.2 | 2,054.1 | 540.3 | 461.8 | 185.4 | 230.6 | 861.4 | 1,194.7 | 811.6 | 1,147.7 |
| 1912 | 559.0 | 741.1 | 2,490.7 | 2,860.0 | 1,686.3 | 372.9 | 261.5 | 277.6 | 844.4 | 676.8 | 901.6 | 938.7 |
| 1913 | 2,529.8 | 588.4 | 2,331.3 | 1,433.4 | 1,075.8 | 565.2 | 338.4 | 152.3 | 141.2 | 513.4 | 943.5 | 669.4 |
| 1914 | 652.4 | 1,433.7 | 2,061.2 | 3,480.1 | 1,956.1 | 342.9 | 329.6 | 277.1 | 192.5 | 121.0 | 163.9 | 177.5 |
| 1915 | 2,121.2 | 2,823.5 | 1,012.0 | 816.7 | 770.5 | 600.9 | 1,295.8 | 1,104.1 | 487.0 | 543.7 | 454.2 | 828.6 |
| 1916 | 1,781.1 | 1,060.5 | 1,827.3 | 3,890.7 | 1,117.1 | 2,628.1 | 672.5 | 242.7 | 192.0 | 341.2 | 285.7 | 404.6 |
| 1917 | 940.4 | 488.5 | 2,117.0 | 1,396.6 | 751.8 | 1,431.4 | 910.1 | 807.6 | 402.7 | 1,020.5 | 1,001.9 | 262.0 |
| 1918 | 184.3 | 1,919.0 | 2,727.2 | 2,149.8 | 1,087.9 | 780.4 | 293.6 | 223.3 | 499.2 | 587.6 | 975.5 | 892.5 |
| 1919 | 954.0 | 556.4 | 1,505.6 | 1,228.4 | 2,508.6 | 557.0 | 509.4 | 421.1 | 192.8 | 304.7 | 1,229.8 | 927.1 |
| 1920 | 385.4 | 352.5 | 3,763.3 | 1,712.9 | 812.1 | 545.1 | 404.9 | 476.6 | 442.9 | 554.4 | 916.9 | 1,609.0 |
| 1921 | 636.6 | 853.5 | 2,274.7 | 1,089.3 | 1,270.0 | 322.5 | 258.2 | 292.5 | 268.4 | 234.6 | 1,148.8 | 1,543.6 |
| 1922 | 454.5 | 1,396.9 | 2,170.5 | 2,102.8 | 831.1 | 1,306.5 | 713.9 | 242.7 | 223.9 | 137.1 | 119.5 | 143.8 |
| 1923 | 568.0 | 544.0 | 2,485.9 | 1,097.8 | 1,293.8 | 341.8 | 193.5 | 191.7 | 193.9 | 182.0 | 248.1 | 1,246.2 |
| 1924 | 1,854.8 | 602.6 | 1,370.5 | 2,877.0 | 2,171.1 | 732.6 | 912.7 | 259.2 | 237.9 | 1,087.1 | 222.0 | 346.6 |
| 1925 | 216.9 | 2,429.9 | 1,186.8 | 786.4 | 944.4 | 316.3 | 350.0 | 289.7 | 214.8 | 284.0 | 1,046.6 | 915.8 |
| 1926 | 669.7 | 1,180.2 | 1,900.9 | 1,710.3 | 457.3 | 368.7 | 195.7 | 424.5 | 686.7 | 944.4 | 2,365.6 | 673.4 |
| 1927 | 1,046.3 | 1,626.8 | 2,978.9 | 1,302.9 | 1,719.1 | 791.2 | 359.3 | 293.4 | 228.5 | 1,398.0 | 1,718.0 | 2,420.5 |
| 1928 | 774.2 | 1,211.7 | 1,499.7 | 2,531.8 | 1,668.1 | 1,658.0 | 1,590.3 | 480.8 | 223.3 | 169.7 | 239.6 | 436.6 |
| 1929 | 481.7 | 581.9 | 2,679.9 | 3,103.5 | 2,041.9 | 500.9 | 262.0 | 123.5 | 131.1 | 745.0 | 953.7 | 1,064.1 |
| 1930 | 1,281.6 | 1,016.9 | 1,951.6 | 1,394.6 | 643.9 | 596.1 | 264.4 | 81.5 | 96.2 | 66.7 | 65.2 | 108.6 |
| 1931 | 109.8 | 258.3 | 911.5 | 2,029.8 | 1,898.6 | 611.9 | 437.5 | 204.3 | 135.8 | 98.3 | 113.7 | 495.5 |
| 1932 | 1,238.6 | 1,143.7 | 847.2 | 2,427.0 | 1,287.3 | 312.3 | 247.3 | 121.5 | 70.8 | 573.4 | 1,426.0 | 461.0 |
| 1933 | 763.1 | 641.7 | 2,004.8 | 2,433.8 | 1,431.7 | 571.2 | 296.8 | 911.2 | 979.5 | 341.2 | 410.9 | 643.4 |
| 1934 | 1,165.5 | 282.7 | 1,005.0 | 2,108.8 | 487.9 | 285.2 | 145.4 | 147.1 | 610.2 | 462.7 | 704.2 | 1,369.4 |
| 1935 | 1,224.7 | 732.0 | 2,147.3 | 1,697.6 | 1,326.1 | 363.3 | 963.3 | 336.1 | 161.6 | 126.7 | 1,053.4 | 950.3 |
| 1936 | 738.2 | 478.8 | 6,119.3 | 1,925.5 | 542.0 | 301.6 | 147.8 | 160.2 | 134.9 | 273.7 | 843.3 | 977.5 |
| 1937 | 2,620.7 | 1,236.3 | 1,024.2 | 2,434.7 | 1,431.4 | 546.8 | 329.9 | 514.8 | 393.6 | 848.7 | 1,336.6 | 1,107.2 |
| 1938 | 1,002.4 | 1,556.0 | 1,677.2 | 1,370.8 | 717.0 | 409.5 | 357.9 | 268.6 | 438.1 | 243.4 | 367.6 | 1,171.2 |
| 1939 | 513.7 | 2,220.9 | 2,216.9 | 1,907.4 | 570.9 | 274.4 | 183.6 | 128.0 | 75.1 | 151.1 | 327.9 | 317.7 |
| 1940 | 254.1 | 360.5 | 1,396.0 | 5,402.9 | 1,087.1 | 751.0 | 380.0 | 171.1 | 354.2 | 217.1 | 600.9 | 1,098.4 |
| 1941 | 937.9 | 489.9 | 1,105.5 | 2,180.7 | 361.0 | 458.7 | 243.4 | 205.6 | 122.3 | 82.0 | 203.9 | 664.9 |
| 1942 | 533.5 | 703.7 | 2,360.5 | 1,837.5 | 1,500.2 | 696.0 | 457.3 | 414.0 | 273.4 | 874.4 | 1,091.9 | 1,352.7 |
| 1943 | 2,102.8 | 1,437.4 | 2,200.2 | 1,991.8 | 2,446.6 | 955.7 | 253.3 | 177.5 | 108.4 | 399.0 | 1,206.0 | 318.8 |
| 1944 | 419.4 | 496.7 | 2,132.8 | 1,938.6 | 1,758.5 | 757.5 | 277.8 | 123.2 | 131.2 | 246.9 | 255.9 | 612.8 |
| 1945 | 685.8 | 1,017.1 | 4,004.0 | 1,387.0 | 2,223.4 | 927.1 | 498.1 | 427.9 | 725.2 | 1,012.0 | 1,735.0 | 1,377.9 |
| 1946 | 1,448.1 | 508.6 | 2,512.3 | 577.1 | 2,257.1 | 1,938.3 | 504.6 | 448.3 | 197.3 | 591.8 | 414.3 | 329.3 |
| 1947 | 1,279.4 | 868.2 | 1,315.3 | 2,055.5 | 2,288.3 | 1,192.4 | 913.8 | 468.6 | 327.3 | 125.1 | 589.3 | 464.7 |
| 1948 | 429.6 | 1,036.7 | 2,757.5 | 2,675.9 | 1,768.4 | 667.1 | 446.0 | 264.5 | 107.2 | 154.1 | 662.6 | 1,004.7 |
| 1949 | 2,371.8 | 1,565.9 | 1,070.7 | 1,439.1 | 916.9 | 321.1 | 236.3 | 149.1 | 192.1 | 211.5 | 308.9 | 911.2 |
| 1950 | 1,673.5 | 1,393.8 | 2,045.3 | 2,403.0 | 1,094.7 | 877.5 | 344.9 | 348.0 | 530.1 | 565.2 | 1,948.8 | 2,350.0 |
| 1951 | 1,846.0 | 2,316.6 | 2,025.2 | 2,377.5 | 672.2 | 731.4 | 474.9 | 211.4 | 136.4 | 127.4 | 545.4 | 1,033.8 |
| 1952 | 2,409.5 | 1,427.2 | 2,414.0 | 2,372.4 | 1,773.2 | 527.0 | 328.2 | 218.6 | 294.8 | 120.9 | 670.5 | 1,342.5 |
| 1953 | 1,570.5 | 1,216.5 | 1,929.8 | 1,632.5 | 1,763.0 | 1,075.5 | 211.8 | 149.8 | 109.4 | 94.0 | 209.3 | 617.6 |
| 1954 | 365.9 | 1,183.4 | 1,784.8 | 1,499.9 | 1,609.8 | 647.6 | 180.7 | 121.9 | 147.3 | 305.0 | 546.8 | 992.2 |
| 1955 | 1,143.4 | 846.1 | 2,830.8 | 1,145.7 | 536.9 | 376.6 | 140.1 | 546.2 | 201.2 | 1,541.6 | 1,474.5 | 542.8 |
| 1956 | 396.2 | 1,311.9 | 2,696.6 | 2,790.6 | 1,446.7 | 653.3 | 704.2 | 588.7 | 457.3 | 446.3 | 968.2 | 1,659.7 |
| 1957 | 1,004.7 | 962.8 | 1,479.3 | 2,837.3 | 819.5 | 326.5 | 209.7 | 117.0 | 109.4 | 137.6 | 245.8 | 1,155.9 |
| 1958 | 944.9 | 585.0 | 1,931.8 | 3,709.5 | 1,894.1 | 679.9 | 531.2 | 406.9 | 316.3 | 358.8 | 628.1 | 502.1 |
| 1959 | 1,102.9 | 1,133.2 | 1,527.1 | 2,092.3 | 986.8 | 298.7 | 183.0 | 131.8 | 151.6 | 494.7 | 1,209.7 | 1,896.4 |
| 1960 | 1,317.9 | 1,318.7 | 777.6 | 3,449.0 | 2,054.1 | 1,299.2 | 387.4 | 243.3 | 523.9 | 228.3 | 276.4 | 200.1 |
| 1961 | 247.1 | 1,644.9 | 2,504.9 | 2,922.3 | 1,407.6 | 680.2 | 329.6 | 291.1 | 181.7 | 97.7 | 228.3 | 368.7 |
| 1962 | 777.9 | 642.2 | 2,193.1 | 3,044.1 | 641.9 | 207.5 | 98.7 | 112.3 | 102.3 | 491.3 | 761.7 | 536.3 |
| 1963 | 561.8 | 404.6 | 2,812.7 | 1,385.3 | 873.9 | 491.0 | 173.4 | 115.1 | 98.1 | 69.1 | 157.6 | 500.9 |
| 1964 | 1,171.2 | 717.0 | 3,681.2 | 1,876.3 | 1,221.6 | 252.6 | 130.3 | 108.2 | 58.5 | 71.2 | 73.2 | 210.1 |
| 1965 | 473.5 | 1,155.9 | 1,038.1 | 1,511.6 | 728.9 | 243.4 | 93.9 | 109.2 | 113.8 | 268.6 | 303.3 | 423.6 |
| 1966 | 487.3 | 1,381.6 | 2,079.0 | 937.9 | 1,522.0 | 431.5 | 113.1 | 92.7 | 124.1 | 146.9 | 321.4 | 797.4 |
| 1967 | 530.7 | 784.9 | 2,209.6 | 1,706.7 | 1,799.8 | 486.2 | 376.3 | 504.0 | 271.8 | 749.3 | 1,206.6 | 1,228.4 |
| 1968 | 470.3 | 1,037.5 | 1,562.8 | 895.1 | 1,303.4 | 1,420.4 | 472.0 | 152.5 | 329.9 | 172.1 | 1,193.0 | 896.8 |
| 1969 | 604.3 | 735.1 | 781.5 | 1,637.3 | 921.7 | 529.0 | 341.2 | 443.4 | 150.9 | 121.8 | 727.5 | 853.5 |
| 1970 | 487.3 | 1,737.0 | 1,379.0 | 3,735.0 | 1,091.9 | 496.4 | 428.4 | 247.1 | 215.7 | 474.9 | 1,539.6 | 1,098.7 |
| 1971 | 704.2 | 1,912.5 | 2,667.7 | 1,680.9 | 1,163.5 | 340.4 | 173.6 | 284.6 | 253.4 | 248.6 | 388.2 | 1,531.9 |
| 1972 | 1,170.6 | 737.7 | 2,953.4 | 2,392.8 | 1,874.6 | 4,723.3 | 1,511.8 | 313.8 | 181.5 | 188.4 | 1,465.1 | 2,713.3 |
| 1973 | 1,256.1 | 1,544.1 | 1,699.9 | 2,016.7 | 1,525.7 | 916.6 | 540.0 | 372.9 | 388.8 | 362.7 | 728.6 | 2,331.6 |
| 1974 | 1,837.5 | 1,227.8 | 1,616.6 | 2,362.2 | 1,032.1 | 495.3 | 577.1 | 258.5 | 535.5 | 305.8 | 630.3 | 1,383.3 |
| 1975 | 1,394.0 | 2,224.6 | 2,064.6 | 1,237.2 | 1,435.4 | 1,077.5 | 433.0 | 241.8 | 1,955.3 | 1,662.2 | 998.2 | 939.8 |
| 1976 | 1,166.1 | 2,543.4 | 1,629.6 | 1,065.6 | 875.8 | 992.2 | 617.6 | 514.0 | 293.9 | 2,128.0 | 954.0 | 669.1 |
| 1977 | 308.4 | 728.9 | 3,267.8 | 2,180.7 | 751.5 | 316.6 | 521.9 | 356.2 | 917.7 | 1,950.5 | 1,876.3 | 2,145.6 |
| 1978 | 2,100.3 | 856.0 | 2,756.1 | 2,339.5 | 2,065.7 | 693.2 | 356.8 | 413.4 | 296.5 | 299.3 | 344.0 | 783.8 |
| 1979 | 2,390.8 | 1,050.0 | 3,502.8 | 1,552.9 | 1,093.6 | 628.6 | 295.3 | 397.9 | 661.8 | 1,108.0 | 1,236.3 | 1,078.3 |
| 1980 | 653.8 | 315.4 | 1,801.5 | 2,628.7 | 1,091.3 | 399.0 | 281.2 | 198.6 | 115.3 | 125.0 | 254.9 | 416.0 |
| 1981 | 168.8 | 2,694.9 | 854.9 | 880.9 | 1,132.1 | 775.3 | 401.8 | 208.5 | 226.2 | 607.1 | 846.1 | 589.8 |
| 1982 | 704.8 | 1,302.3 | 2,223.4 | 1,856.7 | 602.0 | 1,715.4 | 485.9 | 221.6 | 142.8 | 140.5 | 270.3 | 549.1 |
| 1983 | 469.5 | 1,091.9 | 1,271.4 | 3,052.6 | 2,027.8 | 810.4 | 418.0 | 173.7 | 117.0 | 163.9 | 525.6 | 2,184.6 |
| 1984 | 498.7 | 2,808.2 | 1,254.2 | 3,106.4 | 1,689.1 | 1,272.3 | 856.9 | 681.0 | 241.6 | 174.4 | 371.8 | 1,355.0 |
| 1985 | 728.6 | 857.7 | 1,392.6 | 1,287.9 | 576.8 | 434.4 | 250.6 | 185.0 | 238.7 | 329.6 | 1,373.7 | 1,299.7 |
| 1986 | 739.1 | 1,555.4 | 2,544.0 | 1,458.3 | 677.3 | 796.0 | 428.7 | 442.0 | 182.3 | 410.6 | 1,338.3 | 1,509.9 |
| 1987 | 681.0 | 483.4 | 1,405.4 | 2,305.6 | 683.0 | 384.5 | 472.0 | 176.1 | 737.7 | 443.7 | 602.6 | 1,020.3 |
| 1988 | 585.0 | 1,315.9 | 1,209.4 | 877.3 | 1,528.8 | 370.1 | 192.6 | 191.5 | 306.7 | 192.6 | 698.9 | 391.9 |
| 1989 | 550.2 | 628.1 | 994.5 | 1,580.9 | 2,575.4 | 1,746.3 | 1,014.3 | 309.5 | 232.0 | 601.2 | 801.4 | 363.6 |
| 1990 | 936.7 | 2,158.9 | 924.8 | 1,303.1 | 1,364.0 | 701.4 | 685.0 | 500.6 | 418.0 | 1,920.7 | 1,243.7 | 1,978.8 |
| 1991 | 1,663.0 | 1,278.8 | 1,820.8 | 1,308.2 | 740.5 | 208.9 | 134.9 | 131.7 | 108.8 | 155.0 | 277.8 | 625.2 |
| 1992 | 670.3 | 549.6 | 1,543.3 | 1,630.5 | 821.8 | 601.7 | 533.5 | 573.1 | 502.6 | 514.2 | 1,276.5 | 1,091.0 |
| 1993 | 1,605.0 | 422.8 | 1,857.9 | 6,144.8 | 1,074.3 | 325.9 | 180.7 | 163.8 | 201.9 | 302.1 | 1,122.8 | 1,632.7 |
| 1994 | 497.0 | 1,262.1 | 3,437.7 | 3,865.2 | 940.4 | 671.4 | 596.6 | 1,273.1 | 502.6 | 384.3 | 654.4 | 1,403.9 |
| 1995 | 1,570.5 | 573.7 | 1,179.7 | 877.3 | 576.8 | 510.3 | 332.7 | 139.8 | 98.0 | 627.5 | 1,075.5 | 776.4 |
| 1996 | 2,919.5 | 1,699.9 | 1,844.3 | 1,852.8 | 2,132.5 | 668.0 | 615.6 | 381.1 | 1,022.5 | 1,292.7 | 1,736.7 | 2,799.7 |
| 1997 | 822.0 | 1,234.0 | 1,892.1 | 1,038.9 | 808.2 | 618.2 | 218.8 | 202.1 | 208.3 | 191.4 | 1,029.0 | 786.9 |
| 1998 | 2,339.3 | 1,937.4 | 2,495.0 | 2,243.8 | 1,847.7 | 636.3 | 555.9 | 174.1 | 127.9 | 187.0 | 143.1 | 173.4 |
| 1999 | 1,230.9 | 1,087.9 | 1,459.5 | 1,531.9 | 499.8 | 176.3 | 134.6 | 139.3 | 450.0 | 451.1 | 410.0 | 832.8 |
| 2000 | 634.3 | 1,166.7 | 2,108.2 | 2,370.7 | 1,395.7 | 1,075.8 | 367.6 | 348.3 | 208.9 | 299.0 | 291.1 | 777.0 |
| 2001 | 365.6 | 848.7 | 1,283.6 | 2,271.6 | 430.1 | 563.8 | 253.2 | 132.2 | 213.1 | 189.8 | 175.4 | 625.5 |
| 2002 | 358.2 | 1,087.4 | 1,126.7 | 1,206.6 | 2,162.0 | 1,271.7 | 269.9 | 120.5 | 146.1 | 670.0 | 1,034.7 | 1,202.6 |
| 2003 | 1,253.6 | 717.3 | 2,925.1 | 1,943.4 | 1,107.2 | 2,017.0 | 664.3 | 1,136.6 | 1,365.4 | 1,193.3 | 1,890.1 | 2,350.6 |
| 2004 | 1,437.9 | 698.6 | 2,301.6 | 1,989.5 | 1,567.9 | 702.0 | 880.4 | 1,197.0 | 2,947.8 | 859.7 | 963.6 | 2,184.9 |
| 2005 | 2,406.4 | 1,250.5 | 1,681.5 | 2,822.9 | 516.5 | 301.9 | 263.6 | 131.6 | 167.3 | 784.4 | 1,002.1 | 1,534.8 |
| 2006 | 2,421.9 | 1,498.0 | 738.5 | 852.1 | 675.9 | 1,533.4 | 1,297.8 | 397.6 | 956.8 | 948.0 | 1,957.3 | 875.0 |
| 2007 | 1,705.0 | 426.5 | 2,632.6 | 1,901.8 | 853.2 | 272.3 | 156.2 | 209.1 | 123.5 | 246.1 | 709.3 | 1,508.4 |
| 2008 | 1,330.9 | 2,181.0 | 3,264.9 | 1,533.1 | 1,245.7 | 352.3 | 286.6 | 204.7 | 181.7 | 200.6 | 372.4 | 1,437.6 |
| 2009 | 812.7 | 1,005.2 | 1,386.4 | 1,169.8 | 993.9 | 948.9 | 500.1 | 698.0 | 300.7 | 789.2 | 800.5 | 1,223.0 |
| 2010 | 1,665.3 | 775.3 | 2,106.8 | 1,159.3 | 852.1 | 415.7 | 221.4 | 205.6 | 144.0 | 1,015.7 | 820.3 | 1,771.5 |
| 2011 | 363.0 | 877.5 | 4,222.0 | 3,862.4 | 2,783.8 | 848.7 | 310.9 | 415.4 | 3,460.3 | 0.0 | 0.0 | 0.0 |
| Mean of Monthly Discharge | 1,073.2 | 1,146.8 | 2,106.8 | 2,038.8 | 1,265.8 | 747.6 | 436.1 | 339.8 | 379.4 | 504.0 | 764.6 | 1,010.9 |
Monthly mean discharges (m3 sec-1), computed from hydrologic records reported online by the U.S. Geological Survey
