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 | 5.5 | 13 | e28 | e18 | 69 | 150 | 376 | 150 | 39 | 105 | 13 | 16 |
2 | 4.7 | 12 | e25 | e20 | 103 | 127 | 242 | 119 | 41 | 80 | 12 | 11 |
3 | 5.2 | 12 | e23 | e170 | 80 | 114 | 187 | 105 | 39 | 70 | 11 | 9.6 |
4 | 4.9 | 10 | e23 | e220 | 71 | 102 | 157 | 95 | 38 | 69 | 76 | 9.1 |
5 | 4.8 | 9.8 | e21 | e205 | 67 | 91 | 137 | 90 | 38 | 59 | 86 | 8.0 |
6 | 4.5 | 19 | e19 | e190 | 60 | 86 | 125 | 136 | 35 | 58 | 57 | 8.0 |
7 | 3.9 | 20 | e18 | e320 | 57 | 81 | 126 | 187 | 34 | 53 | 26 | 7.4 |
8 | 4.2 | 18 | e17 | e200 | 54 | 291 | 240 | 277 | 34 | 47 | 25 | 6.4 |
9 | 3.8 | 16 | e17 | e150 | 53 | 266 | 239 | 155 | 143 | 47 | 19 | 6.1 |
10 | 5.9 | 17 | e16 | e120 | 54 | 159 | 175 | 126 | 88 | 46 | 27 | 8.7 |
11 | 4.1 | 16 | e15 | e100 | 167 | 131 | 145 | 109 | 103 | 39 | 17 | 6.9 |
12 | 4.0 | 13 | e14 | e90 | 269 | 114 | 128 | 104 | 94 | 36 | 15 | 5.5 |
13 | 6.0 | 13 | e14 | e75 | 162 | 111 | 206 | 101 | 73 | 33 | 13 | 5.6 |
14 | 6.9 | 15 | e13 | e78 | 126 | 110 | 236 | 86 | 85 | 31 | 13 | 181 |
15 | 4.7 | 13 | e14 | e65 | 109 | 96 | 215 | 80 | 250 | 29 | 12 | 97 |
16 | 4.1 | 12 | e13 | e60 | 99 | 93 | 390 | 75 | 393 | 27 | 11 | 44 |
17 | 4.1 | 11 | e13 | e55 | 98 | 324 | 192 | 68 | 153 | 25 | 42 | 31 |
18 | 4.2 | 12 | e13 | e52 | 90 | 629 | 154 | 67 | 477 | 24 | 62 | 25 |
19 | 4.1 | 11 | e13 | e52 | 81 | 282 | 132 | 67 | 675 | 22 | 27 | 22 |
20 | 3.9 | 11 | e13 | e48 | 76 | 194 | 140 | 85 | 194 | 21 | 18 | 21 |
21 | 3.8 | 11 | e14 | e46 | 70 | 154 | 263 | 78 | 185 | 21 | 15 | 17 |
22 | 3.5 | 9.8 | e14 | e44 | 66 | 134 | 377 | 75 | 133 | 136 | 14 | 16 |
23 | 3.9 | 9.9 | e15 | e42 | 64 | 120 | 190 | 69 | 113 | 43 | 13 | 14 |
24 | 9.6 | 9.6 | e16 | e41 | 66 | 108 | 149 | 89 | 102 | 29 | 11 | 16 |
25 | 11 | 13 | e20 | e40 | 61 | 107 | 133 | 73 | 85 | 24 | 11 | 18 |
26 | 8.9 | 12 | e19 | e38 | 67 | 102 | 140 | 65 | 75 | 22 | 11 | 14 |
27 | 15 | 9.2 | e19 | e37 | 391 | 93 | 113 | 58 | 67 | 20 | 11 | 13 |
28 | 14 | e30 | e21 | e37 | 203 | 97 | 103 | 54 | 71 | 19 | 47 | 13 |
29 | 14 | e35 | e19 | e43 | --- | 87 | 110 | 55 | 302 | 18 | 27 | 23 |
30 | 13 | e31 | e18 | 54 | --- | 89 | 99 | 48 | 229 | 17 | 22 | 19 |
31 | 12 | --- | e16 | 49 | --- | 723 | --- | 47 | --- | 14 | 17 | --- |
TOTAL | 202.2 | 444.3 | 533 | 2759 | 2933 | 5365 | 5619 | 2993 | 4388 | 1284 | 781 | 692.3 |
MEAN | 6.52 | 14.8 | 17.2 | 89.0 | 105 | 173 | 187 | 96.5 | 146 | 41.4 | 25.2 | 23.1 |
MAX | 15 | 35 | 28 | 320 | 391 | 723 | 390 | 277 | 675 | 136 | 86 | 181 |
MIN | 3.5 | 9.2 | 13 | 18 | 53 | 81 | 99 | 47 | 34 | 14 | 11 | 5.5 |
CFSM | .10 | .24 | .28 | 1.43 | 1.68 | 2.77 | 3.00 | 1.55 | 2.34 | .66 | .40 | .37 |
IN. | .12 | .26 | .32 | 1.64 | 1.75 | 3.20 | 3.35 | 1.78 | 2.62 | .77 | .47 | .41 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 19.8 | 22.4 | 26.3 | 38.1 | 60.6 | 77.2 | 77.0 | 71.6 | 66.9 | 41.2 | 25.4 | 19.4 |
MAX | 209 | 175 | 162 | 223 | 223 | 299 | 335 | 432 | 616 | 388 | 259 | 208 |
(WY) | 1955 | 1962 | 1983 | 1960 | 1959 | 1960 | 1965 | 1996 | 1993 | 1986 | 1993 | 1970 |
MIN | .11 | .51 | .44 | .000 | 2.78 | 3.95 | 3.17 | 3.44 | 1.86 | 1.50 | .89 | .18 |
(WY) | 1957 | 1957 | 1977 | 1940 | 1964 | 1956 | 1956 | 1956 | 1956 | 1988 | 1957 | 1956 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 8822.71 | 27993.8 | ||||
ANNUAL MEAN | 24.2 | 76.7 | 46.9 | |||
HIGHEST ANNUAL MEAN | 173 | 1993 | ||||
LOWEST ANNUAL MEAN | 8.67 | 1957 | ||||
HIGHEST DAILY MEAN | 1820 A | Feb 21 | 723 | Mar 31 | 5000 | Jul 8 1986 |
LOWEST DAILY MEAN | .55 | Aug 10 | 3.5 | Oct 22 | .00 | B |
ANNUAL SEVEN-DAY MINIMUM | 1.2 | Jan 14 | 3.9 | Oct 17 | .00 | Dec 30 1939 |
INSTANTANEOUS PEAK FLOW | 2480 | Jun 19 | 9300 | Apr 22 1973 | ||
INSTANTANEOUS PEAK STAGE | 7.11 | Jun 19 | 12.65 C | Apr 22 1973 | ||
INSTANTANEOUS LOW FLOW | 3.4 | Oct 21-23 | ||||
ANNUAL RUNOFF (CFSM) | .39 | 1.23 | .75 | |||
ANNUAL RUNOFF (INCHES) | 5.26 | 16.69 | 10.22 | |||
10 PERCENT EXCEEDS | 35 | 187 | 90 | |||
50 PERCENT EXCEEDS | 13 | 44 | 16 | |||
90 PERCENT EXCEEDS | 2.9 | 9.6 | 1.6 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |