DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | e8.0 | e9.0 | e11 | 13 | 24 | 42 | 112 | 61 | 47 | 50 | 24 | 17 |
2 | e6.5 | e8.2 | e11 | 15 | 39 | 38 | 129 | 57 | 46 | 45 | 22 | 15 |
3 | 5.5 | e8.8 | e12 | 25 | 62 | 36 | 107 | 82 | 46 | 42 | 23 | 17 |
4 | 6.6 | e8.8 | e11 | 59 | 61 | 36 | 86 | 85 | 46 | 175 | 59 | 16 |
5 | e5.3 | e11 | e11 | 97 | 54 | 33 | 70 | 71 | 46 | 376 | 83 | 14 |
6 | 4.2 | e17 | e11 | 113 | 46 | 32 | 61 | 68 | 45 | 391 | 103 | 14 |
7 | 4.9 | e13 | e10 | 129 | 42 | 33 | 57 | 136 | 43 | 188 | 65 | 30 |
8 | e5.2 | e12 | e10 | 131 | 42 | 39 | 84 | 354 | 42 | 267 | 53 | 32 |
9 | e5.8 | e11 | e11 | 109 | 38 | 96 | 141 | 477 | 48 | 166 | 44 | 26 |
10 | e5.0 | e10 | e15 | 82 | 35 | 100 | 141 | 388 | 93 | 117 | 38 | 22 |
11 | e4.2 | e10 | e18 | 88 | 45 | 85 | 107 | 226 | 125 | 96 | 33 | 18 |
12 | e4.0 | e9.6 | e17 | 77 | 103 | 73 | 85 | 177 | 261 | 81 | 28 | 15 |
13 | e5.6 | e9.2 | 16 | 36 | 99 | 62 | 73 | 158 | 209 | 71 | 25 | 16 |
14 | e4.8 | e9.0 | 13 | 39 | 81 | 57 | 69 | 132 | 135 | 63 | 24 | 17 |
15 | e4.0 | e10 | 12 | 40 | 66 | 52 | 63 | 114 | 106 | 57 | 22 | 22 |
16 | e3.6 | e9.0 | 14 | 34 | 58 | 48 | 105 | 103 | 91 | 53 | 21 | 23 |
17 | e3.3 | e9.0 | 12 | 29 | 58 | 56 | 126 | 92 | 119 | 50 | 20 | 21 |
18 | e3.1 | e9.0 | 12 | 24 | 57 | 134 | 97 | 85 | 109 | 48 | 19 | 19 |
19 | e3.0 | 8.9 | 11 | e22 | 51 | 226 | 81 | 79 | 118 | 45 | 17 | 17 |
20 | e2.9 | e9.2 | 11 | e20 | 47 | 187 | 73 | 77 | 120 | 44 | 17 | 16 |
21 | e2.8 | e9.4 | 12 | e20 | 45 | 130 | 107 | 73 | 93 | 42 | 17 | 16 |
22 | e2.9 | e9.1 | 12 | e19 | 42 | 97 | 126 | 68 | 79 | 40 | 17 | 16 |
23 | e3.2 | e8.7 | 12 | e19 | 40 | 82 | 96 | 65 | 69 | 38 | 17 | 15 |
24 | e5.0 | e8.6 | 13 | e19 | 40 | 68 | 77 | 66 | 61 | 34 | 18 | 15 |
25 | e4.0 | e8.6 | 17 | e18 | 38 | 61 | 66 | 65 | 55 | 33 | 20 | 14 |
26 | e12 | e8.6 | 18 | e18 | 37 | 56 | 65 | 62 | 66 | 31 | 19 | 14 |
27 | e17 | e10 | 15 | e19 | 41 | 50 | 81 | 57 | 69 | 30 | 19 | 14 |
28 | e12 | e13 | 15 | 19 | 45 | 50 | 80 | 55 | 60 | 29 | 22 | 15 |
29 | e11 | e12 | 17 | 19 | --- | 49 | 70 | 54 | 56 | 27 | 23 | 14 |
30 | e9.6 | e12 | 13 | 21 | --- | 45 | 67 | 51 | 53 | 26 | 20 | 16 |
31 | e8.4 | --- | e12 | 22 | --- | 53 | --- | 51 | --- | 24 | 18 | --- |
TOTAL | 183.4 | 301.7 | 405 | 1395 | 1436 | 2206 | 2702 | 3689 | 2556 | 2779 | 950 | 536 |
MEAN | 5.92 | 10.1 | 13.1 | 45.0 | 51.3 | 71.2 | 90.1 | 119 | 85.2 | 89.6 | 30.6 | 17.9 |
MAX | 17 | 17 | 18 | 131 | 103 | 226 | 141 | 477 | 261 | 391 | 103 | 32 |
MIN | 2.8 | 8.2 | 10 | 13 | 24 | 32 | 57 | 51 | 42 | 24 | 17 | 14 |
CFSM | .08 | .14 | .19 | .64 | .73 | 1.01 | 1.28 | 1.70 | 1.21 | 1.28 | .44 | .25 |
IN. | .10 | .16 | .21 | .74 | .76 | 1.17 | 1.43 | 1.95 | 1.35 | 1.47 | .50 | .28 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 28.4 | 42.4 | 48.0 | 43.9 | 60.4 | 88.0 | 88.7 | 77.2 | 63.1 | 48.0 | 29.3 | 33.1 |
MAX | 126 | 175 | 217 | 146 | 202 | 360 | 249 | 221 | 197 | 381 | 172 | 131 |
(WY) | 1973 | 1986 | 1983 | 1993 | 1997 | 1979 | 1979 | 1974 | 1974 | 1996 | 1987 | 1987 |
MIN | 5.42 | 7.44 | 4.16 | 4.25 | 5.46 | 22.9 | 27.2 | 16.7 | 14.3 | 8.43 | 4.21 | 5.23 |
(WY) | 1964 | 1964 | 1964 | 1977 | 1963 | 1964 | 1963 | 1989 | 1977 | 1961 | 1991 | 1976 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1961 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 16549.4 | 19139.1 | ||||
ANNUAL MEAN | 45.3 | 52.4 | 54.1 | |||
HIGHEST ANNUAL MEAN | 97.8 | 1993 | ||||
LOWEST ANNUAL MEAN | 16.7 | 1977 | ||||
HIGHEST DAILY MEAN | 1600 | Feb 22 | 477 | May 9 | 3460 | Jul 19 1996 |
LOWEST DAILY MEAN | 2.8 A | Oct 21 | 2.8 A | Oct 21 | 1.6 | Aug 2 1991 |
ANNUAL SEVEN-DAY MINIMUM | 3.0 | Oct 17 | 3.0 | Oct 17 | 2.1 | Jul 31 1991 |
INSTANTANEOUS PEAK FLOW | 507 | May 9 | 5510 B | Jul 18 1996 | ||
INSTANTANEOUS PEAK STAGE | 6.77 | May 9 | 13.16 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | .10 C | Dec 7 1962 | ||||
ANNUAL RUNOFF (CFSM) | .65 | .75 | .77 | |||
ANNUAL RUNOFF (INCHES) | 8.77 | 10.14 | 10.48 | |||
10 PERCENT EXCEEDS | 77 | 110 | 110 | |||
50 PERCENT EXCEEDS | 19 | 38 | 31 | |||
90 PERCENT EXCEEDS | 8.1 | 9.0 | 9.9 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |