Maintainer: Webmaster
Last update: Tuesday, 24-Aug-2004 13:52:51 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05075000.html
----------------------------------------------------------------------------------------------------------
Statistics of monthly and annual mean discharges
[m, more than 1 year of occurrence]
__________________________________________________________________________________________________________
Maximum Minimum Mean
______________________ ______________________ _____________________________________________
Water year Water year Standard Coeffi- Percentage
Month Discharge of Discharge of Discharge deviation cient of of annual
(ft3/s) occurrence (ft3/s) occurrence (ft3/s) (ft3/s) variation discharge
__________________________________________________________________________________________________________
October 1,960 1951 2.11 1934 537 487 0.91 8.11
November 1,730 1951 1.61 1934 508 421 0.83 7.69
December 1,540 1951 0 1934 469 371 0.79 7.10
January 1,420 1951 0 1934 466 372 0.80 7.05
February 1,370 1951 0 m 463 370 0.80 7.01
March 1,450 1951 0 m 504 396 0.78 7.62
April 1,980 1951 24.7 1933 682 542 0.79 10.3
May 3,180 1950 5.58 1933 676 610 0.90 10.2
June 2,160 1950 1.04 1936 673 539 0.80 10.2
July 2,470 1975 5.92 1934 588 509 0.87 8.89
August 1,480 1975 0.026 1934 516 426 0.83 7.80
September 1,730 1950 0 1934 531 445 0.84 8.02
Annual 1,410 1951 6.21 1934 551 399 0.72 100
-----------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------
Monthly and annual flow duration, in cubic feet per second
__________________________________________________________________________________________________________________________________
Percentage
of days
discharge Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. Annual
equaled or
exceeded
__________________________________________________________________________________________________________________________________
95 1.40 0.76 2.00 29.9 19.8 8.90 12.6 8.64 3.85 7.28 6.82 4.50 7.40
90 33.5 29.3 44.0 58.8 42.6 32.0 37.8 29.4 24.3 31.7 37.6 29.8 35.7
85 60.8 54.9 74.4 82.9 60.0 66.4 68.7 66.1 56.5 61.4 64.0 50.9 63.2
80 74.3 68.3 104 108 78.2 88.7 93.9 88.4 72.1 80.1 79.0 71.0 83.8
75 107 112 134 151 96.8 119 118 106 101 117 118 107 116
70 141 137 175 196 140 200 156 137 156 155 159 148 156
65 184 188 217 259 263 286 202 195 231 201 208 202 217
60 252 252 277 346 331 377 277 277 306 256 262 274 290
55 335 353 350 436 449 477 383 359 374 312 334 356 370
50 466 446 424 537 550 620 525 440 439 378 408 460 455
45 520 506 500 635 650 746 632 522 514 450 501 528 543
40 575 564 577 729 752 868 706 602 589 547 589 576 631
35 635 633 661 817 861 943 781 681 701 663 658 624 717
30 705 705 749 903 996 1,020 857 768 816 807 727 706 803
25 775 768 825 1,000 1,130 1,090 935 856 901 909 815 788 891
20 849 826 896 1,160 1,250 1,170 1,010 944 986 1,010 907 849 980
15 929 885 967 1,340 1,360 1,310 1,090 1,050 1,070 1,100 1,020 911 1,070
10 1,010 968 1,090 1,570 1,480 1,460 1,280 1,160 1,220 1,270 1,140 972 1,230
5 1,090 1,100 1,220 1,940 1,800 1,610 1,490 1,270 1,390 1,450 1,360 1,120 1,460
--------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
Probability of annual high discharges
[ng, statistic not given]
__________________________________________________________________________________________________
Maximum average discharge
(ft3/s)
___________________________________________________________
Recurrence Maximum
Exceedance interval instantaneous 3-day period 7-day period 15-day period 30-day period
probability (years) (ft3/s)
__________________________________________________________________________________________________
0.99 1.01 ng 41.4 34.5 25.7 20.9
0.95 1.05 202 145 124 99.0 80.6
0.90 1.11 328 260 225 184 150
0.80 1.25 559 483 424 356 293
0.50 2 1,340 1,260 1,120 974 820
0.20 5 2,660 2,480 2,240 1,970 1,710
0.10 10 3,570 3,200 2,910 2,550 2,260
0.04 25 4,660 3,960 3,610 3,150 2,850
0.02 50 5,400 4,410 4,020 3,500 3,200
0.01 100 6,070 4,770 4,360 3,770 3,490
0.005 200 6,690 5,060 4,620 3,990 3,720
0.002 500 7,410 ng ng ng ng
-------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------
Annual peak discharge and corresponding gage height, period of record
[--, no data]
_____________________________________________________________________________________
Gage Peak Gage Peak
Water Date height discharge Water Date height discharge
year (feet) (ft3/s) year (feet) (ft3/s)
_____________________________________________________________________________________
Annual peak discharge, by year, and corresponding gage height
1930 April 5 4.08 912 1964 October 24 7.32 1,170
1931 April 3 2.38 254 1965 April 13 11.42 2,740
1932 April 9 3.45 241 1966 April 3 12.68 3,340
1933 April 18 3.84 85.0 1967 March 30 10.84 2,480
1934 May 3 1.60 58.0 1968 July 18 11.98 2,770
1935 April 13 2.68 111 1969 April 10 10.49 2,320
1936 April 17 3.80 248 1970 June 16 9.90 2,120
1937 July 15 5.08 285 1971 April 8 10.54 1,610
1938 May 13 7.18 1,460 1972 May 29 8.75 1,580
1939 April 21 7.44 1,300 1973 September 25 7.93 1,290
1940 April 19 6.22 1,300 1974 April 28 11.07 2,670
1941 June 15 -- 912 1975 July 7 13.39 4,060
1942 April 2 7.81 1,800 1976 October 25 8.56 1,890
1943 April 8 7.22 2,010 1977 May 19 5.31 667
1944 April 11 9.20 1,320 1978 April 8 11.93 2,440
1945 March 27 7.91 2,540 1979 April 25 12.30 3,660
1946 March 30 7.67 2,310 1980 April 5 9.05 1,500
1947 June 15 8.30 2,660 1981 June 29 5.71 577
1948 April 20 9.20 3,390 1982 April 15 10.37 1,800
1949 April 13 5.70 1,360 1983 October 12 8.54 1,510
1950 May 11 13.42 3,720 1984 June 9 10.03 2,210
1951 April 29 10.24 2,170 1985 August 18 11.61 2,490
1952 May 19 8.76 1,730 1986 April 29 10.82 2,470
1953 June 9 5.12 670 1987 May 26 6.48 961
1954 June 23 5.31 742 1988 April 4 7.75 600
1955 April 8 8.04 1,240 1989 April 14 7.55 600
1956 April 20 10.29 1,330 1990 March 13 5.65 150
1957 June 28 9.91 1,960 1991 July 13 5.32 154
1958 October 17 7.95 1,520 1992 April 21 -- 390
1959 April 3 5.42 326 1993 July 26 10.74 1,860
1960 April 6 7.45 530 1994 July 8 10.66 2,020
1961 April 20 2.92 282 1995 March 19 11.58 2,720
1962 June 11 12.10 3,060 1996 April 19 12.64 3,100
1963 April 8 8.31 1,600 1997 April 15 10.73 2,260
Annual peak discharge, from highest to lowest, and corresponding gage height
1975 July 7 13.39 4,060 1965 April 13 11.42 2,740
1950 May 11 13.42 3,720 1995 March 19 11.58 2,720
1979 April 25 12.30 3,660 1974 April 28 11.07 2,670
1948 April 20 9.20 3,390 1947 June 15 8.30 2,660
1966 April 3 12.68 3,340 1945 March 27 7.91 2,540
1996 April 19 12.64 3,100 1985 August 18 11.61 2,490
1962 June 11 12.10 3,060 1967 March 30 10.84 2,480
1968 July 18 11.98 2,770 1986 April 29 10.82 2,470
1978 April 8 11.93 2,440 1940 April 19 6.22 1,300
1969 April 10 10.49 2,320 1973 September 25 7.93 1,290
1946 March 30 7.67 2,310 1955 April 8 8.04 1,240
1997 April 15 10.73 2,260 1964 October 24 7.32 1,170
1984 June 9 10.03 2,210 1987 May 26 6.48 961
1951 April 29 10.24 2,170 1930 April 5 4.08 912
1970 June 16 9.90 2,120 1941 June 15 -- 912
1994 July 8 10.66 2,020 1954 June 23 5.31 742
1943 April 8 7.22 2,010 1977 May 19 5.31 667
1957 June 28 9.91 1,960 1953 June 9 5.12 670
1976 October 25 8.56 1,890 1988 April 4 7.75 600
1993 July 26 10.74 1,860 1989 April 14 7.55 600
1942 April 2 7.81 1,800 1981 June 29 5.71 577
1982 April 15 10.37 1,800 1960 April 6 7.45 530
1952 May 19 8.76 1,730 1992 April 21 -- 390
1971 April 8 10.54 1,610 1959 April 3 5.42 326
1963 April 8 8.31 1,600 1937 July 15 5.08 285
1972 May 29 8.75 1,580 1961 April 20 2.92 282
1958 October 17 7.95 1,520 1931 April 3 2.38 254
1983 October 12 8.54 1,510 1936 April 17 3.80 248
1980 April 5 9.05 1,500 1932 April 9 3.45 241
1938 May 13 7.18 1,460 1991 July 13 5.32 154
1949 April 13 5.70 1,360 1990 March 13 5.65 150
1956 April 20 10.29 1,330 1935 April 13 2.68 111
1944 April 11 9.20 1,320 1933 April 18 3.84 85.0
1939 April 21 7.44 1,300 1934 May 3 1.60 58.0
------------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------------------------
Monthly and annual mean discharges, in cubic feet per second
[Data were not rounded in accordance with U.S. Geological Survey publication standards]
__________________________________________________________________________________________________________________________________
Year Oct. Nov. Dec. Jan. Feb. March April May June July Aug. Sept. Annual
__________________________________________________________________________________________________________________________________
1930 253.0 232.9 206.5 154.8 118.5 239.6 486.8 566.3 388.2 228.5 126.0 86.6 258.0
1931 88.1 98.8 87.0 90.1 119.7 140.8 175.2 137.6 101.4 37.7 17.9 9.07 91.7
1932 21.9 44.0 23.3 29.5 11.9 17.0 67.7 11.2 5.81 12.3 11.8 3.86 21.7
1933 16.4 28.8 13.6 10.3 5.14 4.78 24.7 5.58 5.25 12.1 11.4 3.56 11.8
1934 2.11 1.61 0 0 0 0.513 25.8 26.5 11.9 5.92 0.026 0 6.21
1935 6.90 10.1 4.77 2.00 1.05 17.8 47.2 47.5 37.3 16.1 6.22 7.38 17.1
1936 6.64 4.45 2.69 0.487 0 0 67.7 11.4 1.04 7.27 0.394 1.84 8.60
1937 7.36 2.41 1.36 0.206 0 0 38.6 35.5 17.2 80.3 86.7 46.0 26.5
1938 21.8 28.6 21.5 25.1 28.4 110.5 41.1 735.5 129.8 116.5 93.5 134.7 125.1
1939 140.3 136.3 138.7 126.5 108.9 119.0 320.0 262.1 240.7 136.8 113.9 198.3 170.0
1940 232.3 217.7 181.3 179.0 186.6 211.6 510.7 433.7 378.0 172.6 141.9 148.9 249.2
1941 162.8 187.2 184.2 189.7 187.5 204.8 330.3 110.2 509.9 95.5 210.4 355.2 226.3
1942 325.6 531.8 369.7 415.5 414.3 628.7 860.3 748.7 502.4 188.9 180.3 481.8 469.8
1943 271.4 343.9 333.5 340.6 345.0 354.8 1,052 846.2 964.9 570.7 749.0 790.7 579.9
1944 747.3 672.7 497.7 488.7 524.1 508.7 794.3 746.0 962.9 771.2 769.0 908.2 698.7
1945 876.6 1,063 948.4 716.8 714.3 1,274 1,601 1,274 1,010 691.3 497.5 617.6 940.8
1946 785.8 672.9 553.2 550.0 503.6 881.9 1,253 971.0 794.4 449.5 367.5 421.4 684.1
1947 525.6 539.5 467.1 455.5 409.3 404.5 1,197 1,304 1,936 846.5 719.3 945.2 812.1
1948 1,046 886.1 764.5 687.1 569.0 637.1 1,790 1,467 884.1 613.7 447.5 399.5 849.3
1949 369.5 346.2 283.9 274.8 268.6 384.5 753.5 570.4 655.8 384.5 522.5 524.6 445.0
1950 619.2 566.6 521.6 517.7 473.6 531.0 1,559 3,179 2,161 1,869 1,388 1,733 1,264
1951 1,955 1,730 1,539 1,424 1,366 1,453 1,980 1,791 1,573 1,158 453.1 463.8 1,407
1952 464.2 600.3 856.8 1,072 1,068 1,055 948.2 1,354 1,433 1,253 621.4 533.1 938.2
1953 372.4 285.6 309.9 311.0 328.5 331.2 163.8 258.6 405.8 288.7 305.8 290.4 304.3
1954 250.0 204.3 226.1 216.9 227.0 229.5 389.0 420.8 585.7 569.0 368.4 268.6 330.1
1955 252.2 326.7 325.3 273.6 297.4 327.7 549.3 307.6 278.4 276.9 261.2 231.9 308.7
1956 196.9 148.7 145.1 148.4 150.1 153.4 556.2 370.7 195.1 170.6 186.5 189.0 217.3
1957 236.7 245.3 207.7 184.4 146.2 227.6 325.6 98.3 671.2 1,252 1,180 1,140 494.6
1958 1,467 1,304 658.8 669.1 653.5 878.4 722.2 312.2 333.7 441.2 233.8 56.7 644.5
1959 43.6 35.9 38.5 47.1 45.9 66.4 120.0 45.5 36.4 43.4 49.1 38.8 50.9
1960 149.4 142.8 146.9 136.0 126.3 138.4 229.2 40.1 49.9 42.3 38.7 18.3 104.7
1961 83.0 108.4 37.3 36.5 32.3 62.4 95.9 33.5 41.0 48.8 32.8 76.8 57.3
1962 122.2 86.9 45.7 47.8 48.9 47.7 205.5 487.5 1,469 1,136 1,017 1,235 496.7
1963 1,401 1,210 863.2 900.6 886.8 915.5 1,036 1,014 1,003 677.0 618.6 830.1 946.0
1964 1,068 586.5 535.9 498.8 470.3 289.4 264.1 162.4 235.0 144.1 100.2 94.4 371.0
1965 276.3 546.5 593.5 591.6 592.0 615.5 1,021 610.5 788.5 778.8 681.5 799.8 657.1
1966 1,044 991.0 1,014 977.7 966.4 968.4 1,623 1,683 1,229 989.2 1,046 1,139 1,139
1967 1,130 1,057 941.3 922.3 1,003 1,136 1,186 1,292 1,181 903.1 782.0 792.3 1,027
1968 422.2 352.7 264.0 224.9 205.9 253.0 93.4 43.4 271.5 1,080 662.9 672.8 380.2
1969 575.8 822.8 1,018 1,086 1,167 1,125 1,395 1,311 1,230 920.3 810.5 1,170 1,050
1970 1,309 1,122 990.3 952.4 918.0 898.1 861.6 1,316 1,257 892.9 830.9 1,004 1,030
1971 818.9 715.7 676.3 656.0 743.4 869.0 803.9 943.7 927.6 683.8 632.7 408.6 740.2
1972 512.0 711.5 741.2 843.5 896.6 904.7 1,017 1,123 1,060 784.1 1,104 1,170 904.8
1973 964.8 687.7 559.9 520.1 564.8 539.9 207.1 399.8 300.3 189.4 233.9 641.1 483.7
1974 989.4 1,072 858.5 874.2 905.0 814.0 1,346 1,813 1,363 1,428 1,283 1,290 1,171
1975 1,387 1,146 914.2 789.4 727.9 692.8 1,229 1,397 1,545 2,474 1,478 1,579 1,284
1976 1,791 1,377 816.8 1,127 1,040 966.5 1,115 1,199 1,062 855.9 971.4 674.1 1,083
1977 231.4 172.0 125.9 119.2 126.6 136.1 113.0 123.1 90.8 105.5 95.3 110.9 129.3
1978 244.4 304.4 440.4 510.5 525.9 544.8 1,085 657.3 975.5 1,005 607.3 370.8 605.8
1979 385.5 433.1 410.0 410.0 415.1 426.1 1,335 1,345 1,261 1,224 1,117 1,031 817.3
1980 964.7 748.1 821.0 821.4 845.2 847.4 784.5 674.1 628.5 246.9 160.7 104.2 636.9
1981 80.6 78.3 60.1 60.3 71.3 103.0 82.0 75.9 123.1 361.5 457.5 457.5 168.2
1982 777.0 800.9 722.3 680.0 682.9 717.4 665.3 1,149 1,081 1,116 1,017 940.8 863.7
1983 1,285 1,036 946.8 944.4 849.6 542.9 825.5 772.7 822.3 791.5 703.9 808.7 860.8
1984 591.9 947.6 804.2 773.5 814.8 824.5 879.4 645.3 756.7 1,009 809.3 575.4 785.8
1985 280.0 524.5 849.7 893.2 890.0 915.7 510.7 847.0 1,178 907.4 1,396 1,122 859.5
1986 1,199 966.0 779.0 805.2 824.6 1,048 1,641 1,391 1,286 1,042 990.1 1,000 1,082
1987 713.3 595.6 696.8 702.3 662.1 577.5 280.8 286.5 315.8 221.9 277.9 269.5 466.2
1988 104.5 91.6 86.7 84.4 84.6 123.6 186.4 82.7 91.5 78.6 87.4 75.7 98.1
1989 69.5 72.3 74.0 75.0 73.0 73.5 251.2 89.5 94.1 89.9 91.2 73.6 93.8
1990 60.5 62.4 62.6 62.8 64.1 90.4 78.3 74.6 88.4 79.2 73.8 66.1 72.0
1991 60.0 61.6 61.8 62.0 62.1 81.7 69.2 72.3 66.4 94.7 73.2 63.7 69.2
1992 69.1 58.7 58.8 61.5 63.3 132.8 226.1 125.1 88.6 108.1 111.4 262.3 113.6
1993 201.7 152.1 540.8 540.0 536.8 624.2 610.9 640.8 867.3 924.5 911.5 786.6 612.1
1994 837.3 618.8 609.0 600.8 607.9 498.5 277.8 393.5 702.6 685.2 721.8 806.2 613.5
1995 840.1 720.7 794.2 768.4 804.3 1,252 895.9 944.3 546.6 853.4 673.2 458.9 797.5
1996 523.0 913.7 903.2 883.9 993.1 1,019 1,559 1,356 1,185 1,100 1,045 945.8 1,035
1997 1,158 985.7 1,139 1,077 945.4 1,061 1,523 876.2 1,264 1,137 1,205 1,125 1,125
-------------------------------------------------------------------------------------------------------------------------
|
U.S. Department of the Interior ||
U.S. Geological Survey Maintainer: Webmaster Last update: Tuesday, 24-Aug-2004 13:52:51 EDT Privacy || Disclaimer|| Accessibility || FOIA URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05075000.html |
|