DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 13 | 87 | 58 | e52 | e160 | 44 | 50 | 109 | 69 | 77 | 8.1 | 3.0 |
2 | 18 | 202 | 56 | e62 | e250 | 50 | 49 | 100 | 156 | 49 | 5.8 | 6.1 |
3 | 40 | 185 | 55 | e58 | e210 | 51 | 190 | 93 | 91 | 41 | 5.4 | 4.6 |
4 | 28 | 133 | 54 | e56 | e170 | 47 | e140 | 94 | 270 | 37 | 5.2 | 3.5 |
5 | 205 | 114 | 54 | e54 | e140 | 50 | e94 | 90 | 211 | 34 | 4.5 | 2.8 |
6 | 104 | 101 | 143 | e66 | e125 | 51 | 86 | 83 | 371 | 34 | 5.4 | 2.6 |
7 | 70 | 92 | 253 | e60 | e115 | 42 | e78 | 80 | 308 | 33 | 6.5 | 2.5 |
8 | 55 | 93 | 149 | e57 | e105 | 39 | e150 | 73 | 132 | 31 | 8.4 | 2.7 |
9 | 47 | 101 | 125 | e54 | e98 | e43 | e140 | 66 | 97 | 29 | 5.8 | 2.4 |
10 | 41 | 1300 | 109 | e51 | e92 | e49 | e110 | e59 | 87 | 26 | 5.5 | 4.3 |
11 | 37 | 271 | 100 | e48 | e130 | 47 | e88 | e55 | 94 | 24 | 3.8 | 2.3 |
12 | 35 | 190 | 96 | e46 | e110 | 49 | e79 | e70 | 126 | 23 | 32 | 2.4 |
13 | 31 | 159 | 90 | e45 | e96 | 49 | e76 | e420 | 352 | 24 | 19 | 5.2 |
14 | 31 | 142 | 86 | e43 | e83 | 47 | e74 | e250 | 152 | 21 | 8.4 | 2.5 |
15 | 41 | 122 | 83 | e42 | e74 | 52 | e300 | e170 | 107 | 19 | 8.0 | 2.2 |
16 | 33 | 116 | 82 | e41 | e67 | 82 | 609 | e140 | 90 | 18 | 5.0 | 3.6 |
17 | 1460 | 102 | 78 | e41 | e60 | 144 | 287 | e120 | 81 | 17 | 4.5 | 2.1 |
18 | 2270 | 93 | 82 | e40 | e55 | 109 | 204 | e105 | 72 | 17 | 5.1 | 2.0 |
19 | 313 | 87 | 75 | e40 | e51 | 85 | 170 | e95 | 63 | 16 | 8.5 | 2.2 |
20 | 222 | 82 | 66 | e40 | e48 | 80 | 144 | e90 | 59 | 22 | 6.9 | 2.1 |
21 | 179 | 77 | 58 | e70 | e47 | 72 | 130 | e100 | 55 | 17 | 4.0 | 2.0 |
22 | 149 | 77 | e52 | e150 | e46 | 65 | 130 | e140 | 51 | 14 | 3.8 | 1.9 |
23 | 133 | 74 | e60 | e340 | e46 | 65 | 435 | e96 | 55 | 14 | 41 | 3.1 |
24 | 120 | 66 | e65 | e290 | e45 | 63 | 207 | e76 | 57 | 16 | 57 | 3.7 |
25 | 107 | 67 | e69 | e240 | 43 | 59 | 163 | 65 | 51 | 12 | 15 | 1.9 |
26 | 100 | 63 | e70 | e170 | 45 | 56 | 143 | 63 | 47 | 14 | 8.4 | 2.2 |
27 | 113 | 61 | e69 | e240 | 59 | 57 | 151 | 58 | 45 | 13 | 6.6 | 9.3 |
28 | 127 | 59 | e66 | e300 | 50 | 61 | 173 | 55 | 46 | 13 | 5.7 | 187 |
29 | 98 | 59 | e56 | e200 | --- | 57 | 137 | 53 | 42 | 12 | 4.7 | 45 |
30 | 105 | 71 | e35 | e160 | --- | 52 | 118 | 53 | 42 | 8.9 | 3.7 | 15 |
31 | 86 | --- | e43 | e150 | --- | 51 | --- | 50 | --- | 7.5 | 3.4 | --- |
TOTAL | 6411 | 4446 | 2537 | 3306 | 2620 | 1868 | 4905 | 3171 | 3479 | 733.4 | 315.1 | 332.2 |
MEAN | 207 | 148 | 81.8 | 107 | 93.6 | 60.3 | 164 | 102 | 116 | 23.7 | 10.2 | 11.1 |
MAX | 2270 | 1300 | 253 | 340 | 250 | 144 | 609 | 420 | 371 | 77 | 57 | 187 |
MIN | 13 | 59 | 35 | 40 | 43 | 39 | 49 | 50 | 42 | 7.5 | 3.4 | 1.9 |
CFSM | 3.31 | 2.38 | 1.31 | 1.71 | 1.50 | .97 | 2.62 | 1.64 | 1.86 | .38 | .16 | .18 |
IN. | 3.82 | 2.65 | 1.51 | 1.97 | 1.56 | 1.11 | 2.92 | 1.89 | 2.07 | .44 | .19 | .20 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 23.1 | 24.7 | 27.3 | 39.3 | 61.2 | 76.9 | 78.4 | 72.2 | 67.8 | 40.9 | 25.1 | 19.3 |
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 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1940 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 40208.3 | 34123.7 | ||||
ANNUAL MEAN | 110 | 93.5 | 47.8 | |||
HIGHEST ANNUAL MEAN | 173 | 1993 | ||||
LOWEST ANNUAL MEAN | 8.67 | 1957 | ||||
HIGHEST DAILY MEAN | 2270 | Oct 18 | 2270 | Oct 18 | 5000 | Jul 8 1986 |
LOWEST DAILY MEAN | 5.5 | Sep 12 | 1.9 | Sep 22,25 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | 6.7 | Sep 7 | 2.2 | Sep 17 | .00 | Dec 30 1939 |
INSTANTANEOUS PEAK FLOW | 5760 | Oct 18 | 9300 | Apr 22 1973 | ||
INSTANTANEOUS PEAK STAGE | 9.69 | Oct 18 | 12.65 B | Apr 22 1973 | ||
INSTANTANEOUS LOW FLOW | 1.4 | Sep 24 | ||||
ANNUAL RUNOFF (CFSM) | 1.77 | 1.50 | .77 | |||
ANNUAL RUNOFF (INCHES) | 23.97 | 20.34 | 10.41 | |||
10 PERCENT EXCEEDS | 204 | 171 | 92 | |||
50 PERCENT EXCEEDS | 75 | 59 | 17 | |||
90 PERCENT EXCEEDS | 17 | 5.3 | 1.6 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |