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Statistics of monthly and annual mean discharges
[--, no data]
__________________________________________________________________________________________________________
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 -- -- -- -- -- -- -- --
November -- -- -- -- -- -- -- --
December -- -- -- -- -- -- -- --
January -- -- -- -- -- -- -- --
February -- -- -- -- -- -- -- --
March -- -- -- -- -- -- -- --
April -- -- -- -- -- -- -- --
May -- -- -- -- -- -- -- --
June -- -- -- -- -- -- -- --
July -- -- -- -- -- -- -- --
August -- -- -- -- -- -- -- --
September -- -- -- -- -- -- -- --
Annual -- -- -- -- -- -- -- --
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Monthly and annual flow duration, in cubic feet per second; --, no data
_________________________________________________________________________________________________
Percentage
of days
discharge Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. Annual
equaled or
exceeded
________________________________________________________________________________________________
95 -- -- -- -- -- -- -- -- -- -- -- -- --
90 -- -- -- -- -- -- -- -- -- -- -- -- --
85 -- -- -- -- -- -- -- -- -- -- -- -- --
80 -- -- -- -- -- -- -- -- -- -- -- -- --
75 -- -- -- -- -- -- -- -- -- -- -- -- --
70 -- -- -- -- -- -- -- -- -- -- -- -- --
65 -- -- -- -- -- -- -- -- -- -- -- -- --
60 -- -- -- -- -- -- -- -- -- -- -- -- --
55 -- -- -- -- -- -- -- -- -- -- -- -- --
50 -- -- -- -- -- -- -- -- -- -- -- -- --
45 -- -- -- -- -- -- -- -- -- -- -- -- --
40 -- -- -- -- -- -- -- -- -- -- -- -- --
35 -- -- -- -- -- -- -- -- -- -- -- -- --
30 -- -- -- -- -- -- -- -- -- -- -- -- --
25 -- -- -- -- -- -- -- -- -- -- -- -- --
20 -- -- -- -- -- -- -- -- -- -- -- -- --
15 -- -- -- -- -- -- -- -- -- -- -- -- --
10 -- -- -- -- -- -- -- -- -- -- -- -- --
5 -- -- -- -- -- -- -- -- -- -- -- -- --
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Probability of annual high discharges
[--, no data]
__________________________________________________________________________________________________
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 16.9 -- -- -- --
0.95 1.05 38.7 -- -- -- --
0.90 1.11 59.7 -- -- -- --
0.80 1.25 101 -- -- -- --
0.50 2 270 -- -- -- --
0.20 5 710 -- -- -- --
0.10 10 1,170 -- -- -- --
0.04 25 1,980 -- -- -- --
0.02 50 2,770 -- -- -- --
0.01 100 3,740 -- -- -- --
0.005 200 4,930 -- -- -- --
0.002 500 6,850 -- -- -- --
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Annual peak discharge and corresponding gage height, period of record
_____________________________________________________________________________________
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
1979 April 25 17.10 1,000 1989 April 17 15.93 600
1980 April 6 14.32 270 1990 March 14 12.80 46.0
1981 June 28 13.46 55.0 1991 July 8 13.27 74.0
1982 April 15 15.29 270 1992 April 1 13.86 115
1983 March 7 15.87 225 1993 August 31 16.67 550
1984 June 10 15.02 360 1994 March 22 14.40 50.0
1985 June 27 16.16 610 1995 March 16 15.50 340
1986 May 1 14.37 282 1996 May 18 18.31 2,300
1987 March 25 14.59 215 1997 April 19 18.71 2,000
1988 April 4 13.64 100
Annual peak discharge, from highest to lowest, and corresponding gage height
1996 May 18 18.31 2,300 1982 April 15 15.29 270
1997 April 19 18.71 2,000 1983 March 7 15.87 225
1979 April 25 17.10 1,000 1987 March 25 14.59 215
1985 June 27 16.16 610 1992 April 1 13.86 115
1989 April 17 15.93 600 1988 April 4 13.64 100
1993 August 31 16.67 550 1991 July 8 13.27 74.0
1984 June 10 15.02 360 1981 June 28 13.46 55.0
1995 March 16 15.50 340 1994 March 22 14.40 50.0
1986 May 1 14.37 282 1990 March 14 12.80 46.0
1980 April 6 14.32 270
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Monthly and annual mean discharges, in cubic feet per second Continued[--, no data] -------------------------------------------------------------------------------------- Year Oct. Nov. Dec. Jan. Feb. March April May June July Aug. Sept. Annual -------------------------------------------------------------------------------------- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --------------------------------------------------------------------------------------
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