Maintainer: Webmaster
Last update: Tuesday, 24-Aug-2004 12:38:23 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05085000.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 59.1 1983 0 1991 9.36 8.97 0.96 1.53
November 23.6 1983 0.971 1991 9.00 5.06 0.56 1.47
December 13.4 1983 0.291 1990 5.07 3.53 0.70 0.83
January 9.66 1983 0 m 2.62 2.63 1.00 0.43
February 17.3 1981 0 m 2.14 3.19 1.49 0.35
March 438 1966 0 1962 65.7 97.5 1.48 10.7
April 1,570 1950 21.9 1953 309 348 1.13 50.5
May 1,520 1950 10.6 1946 103 221 2.15 16.8
June 267 1964 4.21 1991 47.0 57.7 1.23 7.68
July 348 1997 1.87 1980 34.2 58.5 1.71 5.59
August 328 1993 0 1946 16.3 46.0 2.82 2.66
September 69.0 1993 0 m 9.03 12.2 1.35 1.47
Annual 268 1950 4.36 1990 51.5 48.0 0.93 100
-----------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------
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 0 0 0 3.72 11.4 5.73 1.80 0 0 0.05 1.90 0.34 0.08
90 0.20 0 0 15.7 13.8 7.59 2.90 0.51 0.09 1.00 2.50 0.54 0.44
85 0.25 0 0.12 22.3 15.9 9.98 3.70 0.99 0.39 2.10 3.00 0.86 0.68
80 0.39 0.08 0.24 26.4 17.8 12.4 5.30 1.90 0.73 2.70 4.10 1.10 1.00
75 0.48 0.18 0.48 31.5 19.2 14.0 6.19 1.90 1.30 4.18 4.10 1.70 1.60
70 0.59 0.24 0.68 37.4 20.5 15.5 6.81 3.13 1.80 4.84 4.80 2.20 3.11
65 0.73 0.41 0.68 44.6 21.9 17.0 8.70 3.73 2.50 5.31 5.70 2.80 4.02
60 0.91 0.41 0.96 52.8 23.4 18.5 10.2 4.27 4.11 6.00 5.70 2.80 4.56
55 1.10 0.53 1.40 64.9 26.0 20.2 12.3 5.29 4.89 6.34 7.06 3.50 6.26
50 1.40 0.70 1.90 79.3 29.5 22.9 13.8 6.23 5.34 6.67 7.86 3.50 7.15
45 1.70 0.91 2.99 101 35.5 26.1 15.4 7.16 6.49 8.08 8.41 4.71 9.41
40 1.70 1.20 4.01 128 42.6 29.7 17.5 7.94 7.20 8.99 9.24 5.20 11.2
35 2.70 1.50 5.61 166 50.0 33.8 19.9 8.72 7.90 10.1 9.72 5.91 13.9
30 3.30 2.00 9.27 217 60.0 38.4 23.2 10.7 9.00 11.2 11.2 6.44 17.1
25 3.30 2.60 18.5 278 78.5 44.4 27.5 12.3 10.1 12.8 12.3 7.40 20.8
20 5.12 2.60 40.2 360 98.6 53.0 34.2 14.1 12.8 14.1 13.5 7.83 28.4
15 5.75 4.15 98.8 504 130 64.7 44.4 17.5 15.3 15.3 15.0 9.62 43.0
10 6.71 5.04 191 787 189 82.9 66.0 22.8 19.6 17.6 16.5 11.3 77.2
5 8.14 6.46 406 1,350 384 152 118 46.3 28.2 22.9 19.4 13.3 203
--------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
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 40.6 26.6 23.1 17.4 13.8
0.95 1.05 110 74.8 61.2 45.7 33.5
0.90 1.11 184 127 101 74.6 52.9
0.80 1.25 336 235 181 132 90.6
0.50 2 1,000 717 524 368 243
0.20 5 2,790 2,010 1,420 943 617
0.10 10 4,630 3,340 2,310 1,490 983
0.04 25 7,780 5,600 3,830 2,370 1,590
0.02 50 10,800 7,730 5,240 3,150 2,150
0.01 100 14,300 10,200 6,900 4,040 2,800
0.005 200 18,400 13,100 8,820 5,040 3,560
0.002 500 24,900 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
11882 April -- 2,200 1969 April 12 7.67 3,960
11897 April -- 1,850 1970 April 9 7.04 2,220
11907 April -- 1,750 1971 April 10 5.84 2,460
11916 April -- 1,600 1972 March 17 5.96 2,120
1944 April 10 5.00 650 1973 June 19 1.93 208
1945 March 27 2.11 250 1974 April 16 7.79 4,580
1946 March 22 -- 1,000 1975 April 15 6.73 1,600
1947 March 25 4.12 1,100 1976 March 31 7.03 1,500
1948 April 19 11.80 11,500 1977 April 10 1.58 77.0
1949 April 7 8.19 2,020 1978 March 31 6.52 1,600
1950 April 18 11.80 16,600 1979 April 20 8.93 6,730
1951 April 5 3.60 900 1980 April 1 2.01 167
1952 April 2 2.78 370 1981 June 28 2.04 176
1953 June 4 3.53 910 1982 July 26 4.07 1,140
1954 June 16 2.61 391 1983 March 15 3.52 820
1955 April 2 8.56 4,200 1984 March 26 2.77 394
1956 April 21 6.63 2,930 1985 March 14 3.39 640
1957 March 23 2.72 461 1986 March 19 3.40 690
1958 June 10 2.72 463 1987 April 4 6.91 2,360
1959 April 2 2.45 338 1988 May 29 3.71 945
1960 April 6 5.60 2,050 1989 April 18 2.49 371
1961 March 22 1.90 147 1990 April 15 1.56 58.0
1962 April 19 6.68 2,400 1991 April 4 1.54 60.0
1963 March 24 2.54 250 1992 March 8 3.34 640
1964 June 21 4.31 1,460 1993 July 28 3.70 705
1965 April 12 7.48 3,710 1994 March 26 -- 533
1966 March 21 7.82 3,100 1995 March 19 5.41 1,680
1967 March 31 7.22 3,070 1996 April 13 8.53 3,500
1968 March 27 2.31 315 1997 April 20 -- 2,140
Annual peak discharge, from highest to lowest, and corresponding gage height
1950 April 18 11.80 16,600 1970 April 9 7.04 2,220
1948 April 19 11.80 11,500 11882 April -- 2,200
1979 April 20 8.93 6,730 1997 April 20 -- 2,140
1974 April 16 7.79 4,580 1972 March 17 5.96 2,120
1955 April 2 8.56 4,200 1960 April 6 5.60 2,050
1969 April 12 7.67 3,960 1949 April 7 8.19 2,020
1965 April 12 7.48 3,710 11897 April -- 1,850
1996 April 13 8.53 3,500 11907 April -- 1,750
1966 March 21 7.82 3,100 1995 March 19 5.41 1,680
1967 March 31 7.22 3,070 11916 April -- 1,600
1956 April 21 6.63 2,930 1975 April 15 6.73 1,600
1971 April 10 5.84 2,460 1978 March 31 6.52 1,600
1962 April 19 6.68 2,400 1976 March 31 7.03 1,500
1987 April 4 6.91 2,360 1964 June 21 4.31 1,460
1982 July 26 4.07 1,140 1984 March 26 2.77 394
1947 March 25 4.12 1,100 1954 June 16 2.61 391
1946 March 22 -- 1,000 1989 April 18 2.49 371
1988 May 29 3.71 945 1952 April 2 2.78 370
1953 June 4 3.53 910 1959 April 2 2.45 338
1951 April 5 3.60 900 1968 March 27 2.31 315
1983 March 15 3.52 820 1945 March 27 2.11 250
1993 July 28 3.70 705 1963 March 24 2.54 250
1986 March 19 3.40 690 1973 June 19 1.93 208
1944 April 10 5.00 650 1981 June 28 2.04 176
1985 March 14 3.39 640 1980 April 1 2.01 167
1992 March 8 3.34 640 1961 March 22 1.90 147
1994 March 26 -- 533 1977 April 10 1.58 77.0
1958 June 10 2.72 463 1991 April 4 1.54 60.0
1957 March 23 2.72 461 1990 April 15 1.56 58.0
----------------------------------------------------------------------------------------
1Determined by U.S. Army Corps of Engineers; not used in
statistics.
---------------------------------------------------------------------------------------------------------------------------------
Monthly and annual mean discharges, in cubic feet per second
[Data were not rounded in accordance with U.S. Geological Survey publication standards; --, no data]
__________________________________________________________________________________________________________________________________
Year Oct. Nov. Dec. Jan. Feb. March April May June July Aug. Sept. Annual
__________________________________________________________________________________________________________________________________
1944 -- -- -- -- -- -- 90.0 24.1 20.8 7.42 1.76 7.22 --
1945 2.44 14.7 11.2 2.55 1.64 89.6 47.3 20.1 15.2 5.59 2.90 0.987 18.0
1946 2.12 2.76 1.05 0.500 0.196 154.9 42.2 10.6 8.90 5.36 0 2.98 19.5
1947 5.07 5.83 2.74 0.497 0.021 90.0 96.7 17.2 15.5 19.6 5.37 3.65 21.9
1948 3.91 6.10 5.23 3.45 0.755 0.177 1,189 106.3 40.5 18.7 9.51 4.74 114.2
1949 4.05 7.01 3.68 1.14 0.500 0.594 482.5 37.5 17.4 11.2 3.30 0.653 47.0
1950 5.61 6.97 5.00 0.700 0.700 0.797 1,573 1,515 54.1 28.3 8.05 8.93 267.9
1951 8.41 9.24 4.58 3.65 4.50 31.2 198.7 27.4 15.5 6.48 9.32 8.42 27.1
1952 6.38 6.71 4.10 1.10 0.686 3.57 96.0 16.4 7.57 29.1 5.35 3.01 14.9
1953 2.21 4.19 1.97 0.574 0.079 2.98 21.9 16.5 51.4 10.1 2.14 0.270 9.50
1954 1.80 4.57 2.42 0.281 0.232 24.7 39.8 18.3 43.8 10.0 11.1 6.43 13.6
1955 7.01 6.57 4.00 1.31 0.514 0.032 291.1 22.1 92.4 11.2 2.85 1.69 36.3
1956 5.16 5.31 1.96 0.526 0.476 0.584 511.3 87.9 208.8 26.7 11.0 14.0 72.0
1957 9.96 15.8 6.44 4.47 1.53 47.1 25.8 20.4 14.9 6.45 7.78 56.6 18.1
1958 12.8 14.2 6.85 2.62 0.843 6.00 24.9 16.3 40.9 12.8 3.80 2.07 12.0
1959 7.73 6.53 0.710 0.268 0.100 10.8 107.2 18.4 11.0 5.71 2.15 0.440 14.2
1960 5.57 4.57 3.71 1.87 0.986 20.6 605.9 30.7 15.2 4.63 1.90 0.937 57.3
1961 1.62 4.11 0.742 0.635 0 23.4 24.4 11.6 5.18 5.64 0.513 0 6.51
1962 2.48 3.35 1.06 0.190 0 0 398.4 63.2 266.5 20.2 11.8 8.21 64.0
1963 13.2 15.8 4.87 0.945 0 42.2 34.5 18.9 22.7 26.5 3.73 0.797 15.4
1964 3.15 5.35 1.13 0.152 0.093 0.261 138.7 28.0 266.6 50.5 12.1 10.4 42.6
1965 12.6 10.1 4.99 3.79 2.77 2.84 481.4 63.0 71.9 23.4 11.5 16.0 58.2
1966 25.8 15.8 11.6 4.96 2.14 438.2 355.8 228.5 57.3 36.5 17.6 9.88 101.1
1967 10.9 10.8 8.15 3.54 2.48 123.9 358.8 210.7 39.4 17.4 8.90 5.71 66.8
1968 4.76 10.3 5.57 2.02 1.55 66.5 46.0 21.3 18.7 16.6 11.8 10.5 18.0
1969 8.91 10.9 5.61 0.822 0.407 0.456 521.5 53.3 20.2 12.3 4.70 5.14 53.2
1970 6.50 7.93 5.99 5.38 2.26 0.794 479.5 139.5 41.9 39.8 11.4 6.53 62.0
1971 9.14 10.8 4.40 0.896 0.947 7.45 512.3 59.5 30.4 67.1 21.0 11.6 60.9
1972 12.3 14.6 5.64 0.801 0.259 269.8 356.3 71.9 31.2 10.0 4.51 4.42 65.1
1973 8.08 7.82 2.04 0.400 0.526 59.5 39.9 18.9 28.4 6.15 1.47 4.46 14.9
1974 11.7 4.40 3.09 2.55 0.587 0.913 660.7 485.7 176.3 27.5 19.6 7.60 116.6
1975 13.3 14.8 8.46 5.86 3.68 5.45 285.2 162.4 28.9 108.5 9.28 6.54 54.5
1976 11.1 9.54 3.75 3.60 4.14 108.1 387.6 34.6 17.5 8.50 2.90 1.53 49.1
1977 1.40 2.19 0.489 0 0 11.0 32.9 17.7 10.9 6.79 3.14 4.16 7.57
1978 9.04 5.10 1.29 0.958 0.168 74.5 495.4 56.4 61.2 26.4 8.17 8.64 61.9
1979 5.48 3.07 2.12 2.00 1.35 1.00 1,189 363.0 63.6 63.4 12.1 17.2 142.9
1980 8.14 8.25 4.35 1.04 1.33 8.16 70.2 12.6 7.33 1.87 1.32 2.98 10.6
1981 5.34 10.4 8.19 4.10 17.3 33.3 38.8 15.2 21.5 12.3 4.83 15.3 15.5
1982 20.5 11.7 8.35 1.54 0.301 33.6 329.2 63.0 60.0 235.8 96.4 13.9 73.1
1983 59.1 23.6 13.4 9.66 12.5 236.9 197.3 52.5 32.6 18.7 7.92 17.1 57.0
1984 9.15 15.0 3.53 0.784 4.48 53.3 89.0 26.7 26.0 9.92 3.13 3.77 20.3
1985 3.94 3.60 1.56 0.121 0.001 175.4 63.7 31.2 26.5 5.25 6.08 8.53 27.4
1986 18.5 21.3 8.60 6.37 5.09 190.0 113.1 86.2 16.2 60.1 21.0 12.5 47.0
1987 20.1 10.9 8.71 9.65 7.31 122.3 848.6 81.9 28.6 27.3 15.0 7.68 98.4
1988 12.1 11.1 11.4 6.32 0.674 40.0 98.7 70.7 30.0 4.73 2.11 0.253 24.0
1989 5.20 3.20 1.10 1.14 1.10 1.00 90.6 30.9 8.74 2.32 0.150 0.011 12.1
1990 1.18 1.73 0.291 0 0 0.600 26.4 11.2 8.28 2.75 0.019 0 4.36
1991 0 0.971 0.831 0 0 2.87 23.0 14.0 4.21 14.5 6.44 12.3 6.61
1992 11.5 10.3 8.67 7.14 5.98 186.7 60.7 24.0 15.0 6.80 3.49 0.635 28.6
1993 2.71 5.38 3.61 1.58 2.74 13.1 97.6 23.7 21.8 132.6 327.6 69.0 59.0
1994 20.7 17.2 11.1 6.19 4.56 153.1 164.7 52.5 86.3 64.8 13.7 14.9 51.0
1995 12.9 10.6 9.06 6.64 6.03 392.1 308.4 143.7 61.9 76.1 20.2 11.2 88.8
1996 13.7 14.0 12.9 8.53 3.94 115.9 802.8 382.0 93.9 31.3 15.3 6.98 124.6
1997 9.63 9.99 6.20 3.19 2.86 2.79 1,040 322.1 58.6 348.5 72.1 28.5 158.6
------------------------------------------------------------------------------------------------------------------------
|
U.S. Department of the Interior ||
U.S. Geological Survey Maintainer: Webmaster Last update: Tuesday, 24-Aug-2004 12:38:23 EDT Privacy || Disclaimer|| Accessibility || FOIA URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05085000.html |
|