Maintainer: Webmaster
Last update: Tuesday, 24-Aug-2004 12:38:27 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05079000.html
----------------------------------------------------------------------------------------------------------
Statistics of monthly and annual mean discharges
__________________________________________________________________________________________________________
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 2,840 1972 8.02 1937 827 689 0.83 5.95
November 3,170 1972 10.1 1937 685 558 0.81 4.93
December 1,900 1904 5.34 1937 569 437 0.77 4.10
January 1,660 1951 15.6 1934 511 391 0.76 3.68
February 1,460 1951 17.8 1937 487 364 0.75 3.51
March 4,260 1995 24.9 1936 977 907 0.93 7.04
April 11,900 1997 232 1981 3,070 2,470 0.80 22.1
May 15,300 1950 154 1934 2,100 2,090 0.99 15.1
June 7,200 1962 80.4 1934 1,670 1,300 0.78 12.0
July 6,850 1975 26.2 1936 1,340 1,290 0.96 9.66
August 3,870 1985 12.3 1934 833 740 0.89 6.00
September 3,010 1905 8.87 1934 819 642 0.78 5.90
Annual 3,130 1950 83.6 1934 1,150 725 0.63 100
-----------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------
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 30.9 33.5 63.2 242 213 128 54.3 26.9 24.8 26.3 38.0 31.3 52.5
90 76.0 74.5 121 367 295 218 137 76.0 79.1 103 100 78.5 112
85 108 100 150 512 421 320 212 142 123 142 138 116 161
80 146 131 194 658 557 425 288 185 195 191 181 161 212
75 170 162 249 808 680 551 368 240 248 248 218 190 283
70 199 191 333 971 784 671 477 291 309 302 283 241 355
65 237 234 400 1,160 923 796 595 352 393 360 329 294 430
60 323 332 461 1,380 1,060 934 732 432 502 451 380 348 510
55 382 397 524 1,640 1,200 1,070 837 523 578 549 439 410 601
50 449 441 591 1,930 1,340 1,230 949 617 674 650 510 486 695
45 504 480 665 2,230 1,530 1,410 1,080 715 788 763 587 549 813
40 554 533 788 2,610 1,760 1,610 1,210 815 896 876 675 612 931
35 614 590 893 3,060 2,030 1,820 1,340 916 1,000 986 786 675 1,050
30 687 655 977 3,580 2,430 2,040 1,500 1,040 1,100 1,090 904 769 1,160
25 785 751 1,080 4,120 2,930 2,310 1,700 1,180 1,210 1,200 1,020 867 1,330
20 913 855 1,200 4,790 3,440 2,620 1,990 1,360 1,350 1,350 1,150 960 1,560
15 992 951 1,440 5,680 3,970 3,010 2,380 1,570 1,500 1,530 1,300 1,070 1,950
10 1,080 1,030 2,140 7,160 4,620 3,570 2,960 1,870 1,740 1,850 1,530 1,180 2,600
5 1,220 1,120 3,720 10,200 5,780 4,560 4,030 2,330 2,100 2,280 1,880 1,440 4,010
---------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------
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)1
__________________________________________________________________________________________________
0.99 1.01 878 657 537 402 322
0.95 1.05 1,800 1,400 1,160 892 701
0.90 1.11 2,550 2,030 1,700 1,320 1,030
0.80 1.25 3,810 3,090 2,600 2,040 1,580
0.50 2 7,570 6,330 5,370 4,270 3,290
0.20 5 13,600 11,600 9,910 7,930 6,150
0.10 10 17,900 15,400 13,100 10,500 8,180
0.04 25 23,200 20,100 17,000 13,700 10,800
0.02 50 27,100 23,500 19,900 15,900 12,600
0.01 100 30,900 26,800 22,700 18,100 14,500
0.005 200 34,600 30,000 25,300 20,200 16,200
0.002 500 39,300 ng ng ng ng
-------------------------------------------------------------------------------------------------------------
1Historic adjustment applied.
-------------------------------------------------------------------------------------
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
11897 April 11 25.20 18,900 1947 June 12 18.08 12,400
1902 May 21 10.00 5,170 1948 April 19 -- 9,520
1904 April 24 20.42 13,700 1949 June 2 17.43 10,700
1905 May 13 14.50 8,730 1950 May 7 25.70 27,400
1906 April 15 21.00 14,600 1951 April 7 19.00 12,600
1907 April 4 12.04 6,330 1952 April 11 12.65 6,320
1908 April 10 17.00 10,700 1953 March 24 8.01 2,560
1909 July 21 8.77 3,680 1954 April 12 11.37 5,330
1910 March 20 14.20 7,920 1955 April 8 18.30 12,400
1911 June 10 8.45 3,620 1956 April 20 19.78 14,000
1912 September 29 -- 2,120 1957 June 29 18.10 11,800
1913 April 8 -- 7,170 1958 July 7 8.62 3,370
1914 June 12 7.40 2,630 1959 April 5 11.72 5,630
1915 June 29 14.25 7,860 1960 April 6 12.56 5,520
1916 April 17 21.80 15,900 1961 March 27 5.67 1,450
1917 April 11 -- 5,480 1962 June 11 21.90 16,700
1918 April 2 6.50 1,950 1963 April 9 13.25 6,820
1919 July 5 21.10 14,900 1964 June 20 11.74 5,550
1920 March 25 23.30 9,520 1965 April 14 23.51 19,400
1922 May 13 13.00 6,910 1966 April 3 24.41 21,500
1923 April 20 -- 5,820 1967 April 1 23.49 19,300
1924 April 23 5.20 1,140 1968 July 19 17.17 11,100
1925 June 9 13.50 7,300 1969 April 12 27.33 28,400
1926 March 24 12.30 6,500 1970 April 26 19.05 13,300
1927 April 13 14.00 7,700 1971 April 10 20.74 15,300
1928 April 8 -- 3,910 1972 April 16 20.28 14,700
1929 March 19 14.90 7,620 1973 September 26 10.86 4,960
1930 May 13 10.30 4,770 1974 April 23 22.89 16,400
1931 March 26 4.93 1,030 1975 April 18 21.97 15,600
1932 April 9 9.78 4,390 1976 April 3 19.45 12,500
1933 April 2 5.92 1,440 1977 May 20 8.66 3,440
1934 April 8 6.89 1,490 1978 April 7 23.11 18,100
1935 March 27 8.38 2,490 1979 April 26 24.99 21,900
1936 April 18 11.33 4,540 1980 April 9 12.31 6,600
1937 August 4 10.25 3,750 1981 June 29 13.56 7,120
1938 May 10 12.62 5,910 1982 April 17 16.12 9,320
1939 April 24 8.92 3,050 1983 June 23 13.98 7,330
1940 April 16 14.73 6,000 1984 June 10 20.71 14,400
1941 June 9 -- 6,190 1985 August 19 16.38 9,580
1942 March 28 -- 7,090 1986 April 1 19.47 11,500
1943 April 8 16.88 9,420 1987 May 28 11.22 5,360
1944 August 11 12.20 5,770 1988 April 8 10.90 5,090
1945 March 28 15.96 9,130 1989 April 17 16.11 8,800
1946 March 24 -- 9,020 1990 June 23 4.60 916
1991 June 13 6.99 2,200 1995 March 16 18.27 10,300
1992 April 28 -- 2,460 1996 April 20 24.84 21,700
1993 April 1 18.24 7,400 1997 April 18 -- 28,000
1994 July 10 20.41 13,600
Annual peak discharge, from highest to lowest, and corresponding gage height
1969 April 12 27.33 28,400 1946 March 24 -- 9,020
1997 April 18 -- 28,000 1989 April 17 16.11 8,800
1950 May 7 25.70 27,400 1905 May 13 14.50 8,730
1979 April 26 24.99 21,900 1910 March 20 14.20 7,920
1996 April 20 24.84 21,700 1915 June 29 14.25 7,860
1966 April 3 24.41 21,500 1927 April 13 14.00 7,700
1965 April 14 23.51 19,400 1929 March 19 14.90 7,620
1967 April 1 23.49 19,300 1993 April 1 18.24 7,400
11897 April 11 25.20 18,900 1983 June 23 13.98 7,330
1978 April 7 23.11 18,100 1925 June 9 13.50 7,300
1962 June 11 21.90 16,700 1913 April 8 -- 7,170
1974 April 23 22.89 16,400 1981 June 29 13.56 7,120
1916 April 17 21.80 15,900 1942 March 28 -- 7,090
1975 April 18 21.97 15,600 1922 May 13 13.00 6,910
1971 April 10 20.74 15,300 1963 April 9 13.25 6,820
1919 July 5 21.10 14,900 1980 April 9 12.31 6,600
1972 April 16 20.28 14,700 1926 March 24 12.30 6,500
1906 April 15 21.00 14,600 1907 April 4 12.04 6,330
1984 June 10 20.71 14,400 1952 April 11 12.65 6,320
1956 April 20 19.78 14,000 1941 June 9 -- 6,190
1904 April 24 20.42 13,700 1940 April 16 14.73 6,000
1994 July 10 20.41 13,600 1938 May 10 12.62 5,910
1970 April 26 19.05 13,300 1923 April 20 -- 5,820
1951 April 7 19.00 12,600 1944 August 11 12.20 5,770
1976 April 3 19.45 12,500 1959 April 5 11.72 5,630
1947 June 12 18.08 12,400 1964 June 20 11.74 5,550
1955 April 8 18.30 12,400 1960 April 6 12.56 5,520
1957 June 29 18.10 11,800 1917 April 11 -- 5,480
1986 April 1 19.47 11,500 1987 May 28 11.22 5,360
1968 July 19 17.17 11,100 1954 April 12 11.37 5,330
1908 April 10 17.00 10,700 1902 May 21 10.00 5,170
1949 June 2 17.43 10,700 1988 April 8 10.90 5,090
1995 March 16 18.27 10,300 1973 September 26 10.86 4,960
1985 August 19 16.38 9,580 1930 May 13 10.30 4,770
1920 March 25 23.30 9,520 1936 April 18 11.33 4,540
1948 April 19 -- 9,520 1932 April 9 9.78 4,390
1943 April 8 16.88 9,420 1928 April 8 -- 3,910
1982 April 17 16.12 9,320 1937 August 4 10.25 3,750
1945 March 28 15.96 9,130 1909 July 21 8.77 3,680
1911 June 10 8.45 3,620 1912 September 29 -- 2,120
1977 May 20 8.66 3,440 1918 April 2 6.50 1,950
1958 July 7 8.62 3,370 1934 April 8 6.89 1,490
1939 April 24 8.92 3,050 1961 March 27 5.67 1,450
1914 June 12 7.40 2,630 1933 April 2 5.92 1,440
1953 March 24 8.01 2,560 1924 April 23 5.20 1,140
1935 March 27 8.38 2,490 1931 March 26 4.93 1,030
1992 April 28 -- 2,460 1990 June 23 4.60 916
1991 June 13 6.99 2,200
-----------------------------------------------------------------------------------------------
1Reported by Professor E.F. Chandler.
---------------------------------------------------------------------------------------------------------------------------------
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
__________________________________________________________________________________________________________________________________
1901 -- -- -- -- -- -- -- -- 2,911 3,789 1,775 1,349 --
1902 1,550 1,220 612.0 522.0 605.0 2,441 2,185 4,117 3,898 1,914 1,165 1,027 1,778
1903 1,181 1,346 969.0 880.0 795.0 1,010 4,360 2,318 1,815 995.5 671.0 1,388 1,475
1904 1,934 1,308 1,900 627.0 504.0 490.0 6,655 5,444 3,341 1,815 937.9 1,020 2,164
1905 1,021 892.7 638.0 495.0 504.0 828.0 1,988 3,196 2,077 2,947 3,031 3,009 1,726
1906 2,261 1,675 1,600 1,500 1,020 1,500 8,116 3,783 2,545 1,801 1,516 1,255 2,381
1907 983.2 835.7 700.0 650.0 460.0 1,264 4,372 2,078 2,183 1,225 854.4 994.5 1,383
1908 1,040 668.2 626.0 467.0 508.0 620.0 4,662 3,750 3,046 1,340 1,188 1,185 1,589
1909 860.1 803.1 437.0 479.8 385.0 657.7 2,243 1,517 977.0 1,677 2,282 1,341 1,142
1910 1,484 1,150 946.0 754.0 700.0 3,626 4,117 1,983 1,064 546.2 351.5 333.1 1,424
1911 293.2 216.8 219.0 150.0 120.0 434.0 657.6 450.0 977.1 142.3 109.4 81.4 320.8
1912 98.4 63.7 80.0 31.0 37.0 43.0 391.4 313.3 236.2 309.6 296.9 636.3 211.0
1913 697.0 362.1 165.0 137.3 125.4 117.6 3,350 725.1 365.5 276.9 255.7 266.1 568.3
1914 309.6 264.3 180.1 203.2 203.9 454.8 1,389 1,080 1,497 1,001 375.5 548.1 625.8
1915 546.1 603.8 465.5 383.9 452.9 542.9 1,335 1,340 2,354 2,962 712.4 599.7 1,027
1916 600.6 483.5 558.4 450.4 461.7 689.5 6,664 4,459 3,170 2,781 1,467 1,617 1,947
1917 1,087 871.1 621.5 386.5 430.5 736.5 3,400 1,437 879.5 643.9 273.7 160.4 910.0
1918 269.8 287.8 196.5 127.7 91.4 669.1 644.0 725.2 712.1 331.6 353.6 196.8 385.4
1919 191.4 320.0 268.0 223.0 217.0 538.8 1,466 914.6 912.9 5,581 2,044 505.6 1,109
1920 620.0 441.0 357.0 386.0 422.0 3,450 3,976 1,452 1,990 1,390 658.8 543.2 1,307
1921 548.9 486.0 486.0 472.0 455.0 441.0 1,598 959.2 1,193 551.2 516.6 547.2 686.8
1922 520.9 419.7 440.0 300.0 350.0 380.0 2,567 2,605 962.5 517.6 281.5 478.0 819.2
1923 327.6 468.7 239.8 190.0 170.0 160.0 2,136 1,292 693.2 534.4 236.1 273.8 559.7
1924 341.9 312.0 271.0 167.7 172.4 258.4 690.3 676.9 477.8 237.4 161.8 68.7 319.8
1925 163.4 116.8 97.4 89.4 57.1 452.6 580.7 725.0 2,673 579.5 68.2 195.2 482.2
1926 648.4 501.0 443.2 447.9 385.2 1,845 1,376 714.4 1,347 887.7 363.7 313.3 774.7
1927 410.6 440.0 320.0 240.0 180.0 628.7 3,981 5,201 2,710 1,094 847.1 897.5 1,416
1928 845.3 664.3 550.0 450.0 470.0 1,339 2,090 1,394 1,871 1,148 1,009 1,439 1,105
1929 938.5 782.3 719.6 669.4 474.6 3,234 1,933 1,210 764.7 468.5 301.9 237.8 982.5
1930 255.2 259.0 203.5 165.6 137.8 287.0 1,494 1,679 633.5 348.7 146.6 102.0 477.2
1931 125.9 175.2 178.5 118.1 148.7 263.5 361.7 231.2 225.0 77.6 30.5 21.1 162.8
1932 34.1 99.7 70.9 52.9 56.5 219.5 1,297 317.8 81.0 37.2 19.1 12.8 190.3
1933 12.2 30.9 27.2 23.0 29.4 108.2 609.0 162.5 122.7 36.7 15.4 13.3 98.7
1934 8.79 11.7 20.0 15.6 18.5 130.8 501.2 153.6 80.4 44.2 12.3 8.87 83.6
1935 10.5 23.6 20.9 16.1 21.2 341.3 519.9 283.6 159.0 90.3 32.1 56.7 131.5
1936 31.3 31.3 28.9 31.8 25.0 24.9 1,366 470.2 91.3 26.2 13.2 10.4 177.9
1937 8.02 10.1 5.34 19.8 17.8 26.2 403.7 716.2 382.5 704.2 1,161 577.6 338.5
1938 167.3 92.2 35.9 59.0 80.7 619.6 293.2 3,328 1,041 347.7 108.8 142.3 531.4
1939 155.3 132.6 153.4 157.1 142.0 200.6 659.7 413.0 310.0 180.4 92.9 235.6 235.7
1940 287.9 266.3 241.3 156.9 173.8 186.0 2,016 1,005 481.8 216.5 149.6 143.1 442.0
1941 214.9 243.8 182.3 209.4 211.8 196.9 2,647 738.3 2,536 506.7 305.2 892.0 735.6
1942 1,087 711.0 539.9 448.1 477.9 1,561 2,911 2,829 816.4 287.3 341.5 1,276 1,109
1943 578.1 355.0 312.9 363.2 337.9 529.0 3,966 2,270 3,449 1,416 930.7 951.5 1,286
1944 865.1 683.4 499.8 413.5 448.6 493.9 1,329 1,229 2,283 1,484 1,907 1,533 1,097
1945 1,275 1,549 1,187 709.7 700.0 3,406 5,202 2,901 1,392 860.8 572.8 969.2 1,729
1946 1,088 737.3 600.3 569.4 542.1 3,620 3,867 1,745 1,013 764.1 350.3 464.5 1,284
1947 751.9 590.1 527.7 496.5 454.3 634.5 4,262 3,308 5,572 2,472 941.2 1,133 1,760
1948 1,232 892.3 979.0 912.9 637.9 675.8 6,552 3,409 1,071 954.7 659.3 566.9 1,542
1949 400.9 400.9 331.5 351.6 353.6 476.4 2,587 1,256 2,931 1,214 1,978 1,260 1,128
1950 854.8 866.3 600.0 664.5 655.4 793.5 5,760 15,290 4,702 3,602 1,670 1,872 3,129
1951 2,352 1,778 1,763 1,663 1,464 1,631 5,573 4,265 1,947 1,216 522.8 729.3 2,076
1952 682.4 685.4 1,049 1,140 1,210 1,178 3,236 1,942 1,707 2,326 858.8 599.6 1,384
1953 415.7 371.9 359.3 367.4 375.7 841.0 890.2 1,033 1,252 1,037 452.4 392.8 650.4
1954 356.1 342.7 328.4 293.7 302.8 412.5 1,860 1,305 1,209 673.8 433.8 358.5 656.2
1955 347.2 407.4 389.3 321.6 337.4 365.5 2,593 706.6 1,118 487.0 270.6 258.5 630.9
1956 261.6 178.5 189.2 226.1 230.7 230.1 3,408 2,489 847.6 874.5 301.2 1,292 874.9
1957 360.4 611.7 355.2 231.1 118.4 669.3 2,510 1,272 2,797 3,333 1,375 2,188 1,321
1958 2,295 1,806 782.7 827.0 776.0 1,001 981.0 485.3 603.6 1,532 364.2 103.8 965.7
1959 97.4 117.7 74.5 73.9 83.8 298.4 1,519 685.5 481.1 317.8 182.6 128.9 338.0
1960 219.8 211.4 200.9 184.6 176.6 191.0 2,280 755.9 942.7 420.7 70.5 85.1 475.5
1961 115.6 173.6 71.6 64.5 68.3 405.5 661.4 569.6 92.9 89.7 52.7 184.8 213.0
1962 217.0 142.6 69.5 79.0 82.0 103.0 2,849 4,720 7,205 3,796 1,905 1,733 1,912
1963 1,517 1,370 939.3 983.2 882.1 1,263 3,192 2,074 2,221 1,245 652.1 799.2 1,427
1964 1,077 598.6 455.9 544.2 513.1 361.6 1,841 1,307 2,505 1,157 754.5 464.5 963.2
1965 996.2 820.1 614.2 622.3 634.6 635.5 7,321 3,820 3,866 1,813 795.1 1,140 1,919
1966 2,406 1,369 1,219 1,086 1,040 1,685 10,260 5,254 2,398 1,389 1,755 1,488 2,611
1967 1,201 1,152 1,108 1,053 1,079 1,459 6,833 4,750 2,519 1,324 837.9 833.7 2,011
1968 540.7 390.4 344.0 312.6 260.5 1,212 841.3 399.1 2,151 3,616 1,857 1,316 1,107
1969 950.5 1,155 1,250 1,245 1,240 1,220 7,840 3,651 2,024 1,180 938.3 1,228 1,988
1970 1,787 1,333 1,065 1,114 1,036 1,039 5,595 3,890 4,061 1,535 813.3 965.4 2,017
1971 932.5 943.1 790.0 772.4 860.5 983.2 2,995 1,428 1,169 792.3 656.7 563.1 1,072
1972 2,836 3,172 1,055 902.4 921.7 2,290 5,409 2,976 1,601 939.1 1,177 1,278 2,044
1973 1,114 680.9 658.2 603.7 606.8 1,695 554.7 615.9 407.4 244.1 496.0 2,191 822.6
1974 2,301 1,319 985.8 928.4 1,007 1,003 6,856 5,755 2,755 1,621 2,024 1,456 2,337
1975 1,580 1,429 915.1 994.2 906.8 934.2 6,064 4,697 2,509 6,851 1,788 1,747 2,544
1976 1,966 1,604 1,092 1,337 1,238 1,602 3,409 1,340 1,149 915.5 990.6 669.3 1,441
1977 279.6 183.8 194.8 176.6 181.0 276.6 429.1 366.0 224.6 384.1 191.3 450.9 278.5
1978 628.5 670.0 731.9 623.9 622.1 693.2 7,509 1,798 1,289 1,360 832.4 610.3 1,442
1979 613.1 520.3 503.9 490.0 506.2 556.6 7,678 4,489 2,613 2,322 1,571 1,166 1,919
1980 1,138 936.5 1,201 1,085 1,038 1,070 2,658 808.7 642.7 384.9 415.1 381.3 977.7
1981 186.2 179.9 138.2 125.8 150.2 237.3 231.8 236.8 887.5 1,349 873.1 1356 497.0
1982 1,768 1,131 965.5 982.6 914.3 992.9 4,540 3,456 1,712 2,007 1,355 992.3 1,737
1983 2,193 1,538 1,305 1,087 956.8 2,576 2,384 1,510 2,613 1,973 1,778 1,476 1,787
1984 1,385 1,256 1,022 967.1 1,039 1,787 2,463 1,166 3,498 1,346 821.7 572.0 1,440
1985 803.4 908.6 1,030 1,002 941.4 2,117 1,900 2,728 2,942 3,013 3,868 2,697 2,003
1986 2,416 1,405 1,048 992.9 953.9 2,345 5,623 4,336 1,777 1,301 1,085 1,181 2,043
1987 852.3 662.2 806.5 721.0 694.6 1,919 880.3 1,305 728.5 837.5 671.8 441.3 880.4
1988 226.6 199.6 170.8 160.0 160.0 506.7 1,416 235.4 187.7 147.9 168.1 193.2 313.1
1989 137.9 128.3 139.4 181.3 152.3 152.7 3,546 876.8 537.5 337.4 167.1 156.1 539.9
1990 115.7 96.6 78.0 96.0 103.3 248.9 415.5 221.3 448.9 179.8 138.6 82.9 185.3
1991 95.6 116.6 104.0 94.3 91.7 184.5 236.7 353.7 251.9 635.5 217.6 446.7 236.6
1992 170.6 145.1 146.4 145.8 145.7 1,002 1,381 919.2 242.6 521.7 559.2 1,253 552.7
1993 532.9 261.8 594.4 579.9 593.4 896.9 2,638 988.7 1,479 2,453 2,836 2,414 1,358
1994 1,226 723.2 729.4 661.5 600.2 1,298 1,141 1,234 1,815 4,375 1,168 1,325 1,366
1995 1,625 1,458 1,088 885.2 872.5 4,257 2,636 2,242 854.9 1,786 1,063 943.8 1,651
1996 1,531 1,268 1,193 1,040 1,130 1,234 8,295 7,059 3,066 2,167 1,614 1,056 2,553
1997 1,287 1,669 1,452 1,154 1,029 1,132 11,870 3,850 3,263 5,416 1,554 1,344 2,916
---------------------------------------------------------------------------------------------------------------------------
|
U.S. Department of the Interior ||
U.S. Geological Survey Maintainer: Webmaster Last update: Tuesday, 24-Aug-2004 12:38:27 EDT Privacy || Disclaimer|| Accessibility || FOIA URL: http://nd.water.usgs.gov/pubs/ofr/ofr00344/htdocs/ff.05079000.html |
|