----------------------------------------------------------------------------------------------------------
Statistics of monthly and annual mean discharges
[m, more than 1 year of occurrence; ng, statistic not given]
__________________________________________________________________________________________________________
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 1.56 1944 0 m 0.590 0.61 1.03 0.14
November 2.20 1944 0 m 0.530 0.68 1.29 0.12
December 0.226 1944 0 m 0.040 0.08 1.87 0.01
January 0 m 0 m 0 0 ng 0
February 0 m 0 m 0 0 ng 0
March 188 1946 4.55 1951 60.2 70.1 1.16 13.9
April 488 1951 14.3 1945 202 196 0.97 46.9
May 279 1951 0.190 1946 55.2 101 1.83 12.8
June 324 1944 0 1946 56.8 107 1.89 13.1
July 335 1949 0.168 1945 51.5 108 2.10 11.9
August 24.1 1943 0 m 4.11 8.33 2.03 0.95
September 4.67 1943 0 m 0.670 1.51 2.27 0.15
Annual 55.7 1943 16.5 1945 36.0 14.5 0.40 100
__________________________________________________________________________________________________________
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Monthly and annual flow duration, in cubic feet per second
[ng, statistic not given]
______________________________________________________________________________________________________________________
Percentage
of days
discharge Jan. Feb. March April May June July Aug. Sept. Oct. Nov. Dec. Annual
equaled or
exceeded
______________________________________________________________________________________________________________________
95 ng ng ng ng ng ng ng ng ng ng ng ng 0
90 ng ng ng ng ng ng ng ng ng ng ng ng 0
85 ng ng ng ng ng ng ng ng ng ng ng ng 0
80 ng ng ng ng ng ng ng ng ng ng ng ng 0
75 ng ng ng ng ng ng ng ng ng ng ng ng 0
70 ng ng ng ng ng ng ng ng ng ng ng ng 0
65 ng ng ng ng ng ng ng ng ng ng ng ng 0
60 ng ng ng ng ng ng ng ng ng ng ng ng 0
55 ng ng ng ng ng ng ng ng ng ng ng ng 0
50 ng ng ng ng ng ng ng ng ng ng ng ng 0.10
45 ng ng ng ng ng ng ng ng ng ng ng ng 0.18
40 ng ng ng ng ng ng ng ng ng ng ng ng 0.44
35 ng ng ng ng ng ng ng ng ng ng ng ng 0.80
30 ng ng ng ng ng ng ng ng ng ng ng ng 1.90
25 ng ng ng ng ng ng ng ng ng ng ng ng 4.49
20 ng ng ng ng ng ng ng ng ng ng ng ng 8.04
15 ng ng ng ng ng ng ng ng ng ng ng ng 20.4
10 ng ng ng ng ng ng ng ng ng ng ng ng 53.1
5 ng ng ng ng ng ng ng ng ng ng ng ng 177
______________________________________________________________________________________________________________________
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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 1.01 258 281 312 229 119
0.95 1.05 421 433 420 301 166
0.90 1.11 548 536 490 347 197
0.80 1.25 754 684 591 411 238
0.50 2 1,400 1,040 839 561 333
0.20 5 2,610 1,500 1,180 755 448
0.10 10 3,630 1,770 1,410 877 516
0.04 25 5,160 2,090 1,700 1,020 592
0.02 50 6,490 2,300 1,910 1,130 643
0.01 100 7,980 2,500 2,120 1,230 691
0.005 200 9,660 2,690 2,340 1,330 735
0.002 500 12,200 ng ng ng ng
__________________________________________________________________________________________________
------------------------------------------------------------------------------------
Probability of annual low discharges
[ng, statistic not given]
____________________________________________________________________________________
Minimum average discharge (ft3/s)
________________________________________________________________
Number of consecutive days
________________________________________________________________
Non- Recur-
exceed- rence
ance inter- 1 3 7 14 30 60 90 120 183
prob- val
ability (years)
____________________________________________________________________________________
0.05 20 ng ng ng ng ng ng ng 0 0
0.10 10 ng ng ng ng ng ng ng 0 0
0.20 5 ng ng ng ng ng ng ng 0 0
0.50 2 ng ng ng ng ng ng ng 0 0.061
____________________________________________________________________________________
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Probability of seasonal low discharges
[ng, statistic not given]
_____________________________________________________________________________________
Minimum average discharge (ft3/s)
_________________________________________________________
Number of consecutive days
_________________________________________________________
Non- Recurrence
exceedance interval 1 7 14 30 1 7 14 30
probability (years)
_____________________________________________________________________________________
December-January-February March-April-May
_________________________ __________________________
0.05 20 ng ng ng ng ng ng 0 0.199
0.10 10 ng ng ng ng ng ng 0 0.444
0.20 5 ng ng ng ng ng ng 0 1.06
0.50 2 ng ng ng ng ng ng 0 4.09
June-July-August September-October-November
_________________________ __________________________
0.05 20 0 0 0 0 ng ng ng 0
0.10 10 0 0 0 0 ng ng ng 0
0.20 5 0 0 0 0 ng ng ng 0
0.50 2 0 0 0 0.233 ng ng ng 0
_____________________________________________________________________________________
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Annual peak discharge and corresponding gage height
[--, 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
1943 April 3 -- 1,850 1948 April 3 10.82 734
1944 June 4 11.88 1,860 1949 July 9 9.53 1,300
1945 March 15 -- 495 1950 May 9 -- 1,430
1946 March 21 -- 674 1951 April 7 12.10 1,940
1947 April 11 10.05 1,410 1952 April1 16.40 7,000
Annual peak discharge, from highest to lowest, and corresponding gage height
1952 April1 16.40 7,000 1947 April 11 10.05 1,410
1951 April 7 12.10 1,940 1949 July 9 9.53 1,300
1944 June 4 11.88 1,860 1948 April 3 10.82 734
1943 April 3 -- 1,850 1946 March 21 -- 674
1950 May 9 -- 1,430 1945 March 15 -- 495
_____________________________________________________________________________________
1Day of month unknown.
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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
__________________________________________________________________________________________________________________________________
1943 1.07 0.893 0 0 0 45.7 417.9 14.2 122.2 42.7 24.1 4.67 55.7
1944 1.56 2.20 0.226 0 0 10.2 37.1 175.7 323.6 16.3 0.439 0.160 47.1
1945 0 0 0.032 0 0 174.5 14.3 0.894 5.20 0.168 0 0 16.5
1946 0 0.020 0 0 0 188.5 27.9 0.190 0 9.20 0.026 0 19.1
1947 0.968 0.643 0 0 0 33.5 436.2 10.5 20.5 0.690 0 0.190 41.5
1948 0 0 0 0 0 20.0 196.1 2.63 0.150 0.219 0.135 0 18.0
1949 0 0 0 0 0 39.3 24.8 3.83 16.3 335.0 11.2 0.487 36.5
1950 0.494 0.633 0.090 0 0 25.6 180.9 279.2 2.89 56.3 0.552 0.113 45.9
1951 0.477 0.183 0.016 0 0 4.55 487.5 9.73 20.0 2.88 0.503 0.380 43.3
1952 1.37 0.737 -- -- -- -- -- -- -- -- -- -- --
__________________________________________________________________________________________________________________________________
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