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 | 6.8 | 10 | 106 | 24 | 30 | 296 | 168 | 583 | 15 | 1070 | 36 | 12 |
2 | 6.8 | 9.8 | 64 | 23 | 26 | 198 | 136 | 498 | 14 | 597 | 23 | 10 |
3 | 7.0 | 10 | 30 | 22 | 24 | 152 | 110 | 763 | 13 | 198 | 20 | 12 |
4 | 6.9 | 9.2 | 25 | 20 | 23 | 128 | 216 | 357 | 12 | 194 | 18 | 14 |
5 | 9.0 | 16 | 21 | 25 | 23 | 109 | 144 | 226 | 16 | 144 | 17 | 13 |
6 | 10 | 24 | 18 | 265 | 23 | 93 | 116 | 201 | 18 | 331 | 17 | 12 |
7 | 8.6 | 27 | 16 | 857 | 27 | 89 | 103 | 933 | 16 | 236 | 202 | 13 |
8 | 7.8 | 29 | 16 | 1110 | 28 | 93 | 116 | 763 | 13 | 205 | 513 | 14 |
9 | 9.8 | 25 | 16 | 489 | 27 | 122 | 99 | 381 | 15 | 118 | 390 | 11 |
10 | 13 | 21 | 18 | 162 | 25 | 113 | 80 | 219 | 57 | 87 | 117 | 11 |
11 | 15 | 20 | 20 | 95 | 31 | 86 | 63 | 152 | 104 | 70 | 65 | 15 |
12 | 13 | 17 | 23 | 77 | 134 | 70 | 52 | 118 | 176 | 54 | 52 | 14 |
13 | 12 | 20 | 20 | 65 | 101 | 65 | 54 | 100 | 91 | 44 | 58 | 13 |
14 | 12 | 23 | 17 | 53 | 66 | 77 | 271 | 78 | 464 | 37 | 36 | 13 |
15 | 13 | 23 | 17 | 58 | 50 | 67 | 140 | 59 | 1760 | 35 | 29 | 11 |
16 | 12 | 24 | 14 | 77 | 302 | 62 | 1260 | 47 | 1350 | 36 | 25 | 12 |
17 | 10 | 20 | 12 | 61 | 1070 | 285 | 1100 | 39 | 476 | 34 | 22 | 11 |
18 | 9.0 | 17 | 13 | 48 | 1160 | 1040 | 564 | 26 | 174 | 28 | 21 | 12 |
19 | 9.8 | 16 | 13 | 43 | 614 | 808 | 264 | 23 | 338 | 25 | 20 | 14 |
20 | 10 | 18 | 14 | 37 | 306 | 1580 | 176 | 21 | 231 | 25 | 19 | 14 |
21 | 11 | 23 | 14 | 34 | 235 | 1480 | 143 | 21 | 304 | 24 | 18 | 13 |
22 | 11 | 22 | 21 | 37 | 169 | 912 | 116 | 22 | 268 | 22 | 19 | 13 |
23 | 10 | 17 | 39 | 96 | 139 | 403 | 98 | 27 | 137 | 21 | 19 | 14 |
24 | 10 | 11 | 71 | 107 | 117 | 253 | 86 | 26 | 95 | 19 | 18 | 17 |
25 | 11 | 19 | 214 | 73 | 102 | 188 | 74 | 32 | 70 | 18 | 15 | 15 |
26 | 14 | 20 | 86 | 58 | 102 | 163 | 76 | 49 | 55 | 18 | 13 | 14 |
27 | 16 | 20 | 48 | 52 | 722 | 156 | 72 | 30 | 43 | 17 | 13 | 14 |
28 | 12 | 22 | 34 | 50 | 592 | 144 | 73 | 21 | 33 | 17 | 13 | 13 |
29 | 12 | 23 | 28 | 44 | --- | 166 | 75 | 18 | 29 | 17 | 12 | 11 |
30 | 12 | 27 | 28 | 37 | --- | 118 | 678 | 16 | 1230 | 17 | 12 | 9.6 |
31 | 11 | --- | 27 | 33 | --- | 108 | --- | 16 | --- | 33 | 13 | --- |
TOTAL | 331.5 | 583.0 | 1103 | 4232 | 6268 | 9624 | 6723 | 5865 | 7617 | 3791 | 1865 | 384.6 |
MEAN | 10.7 | 19.4 | 35.6 | 137 | 224 | 310 | 224 | 189 | 254 | 122 | 60.2 | 12.8 |
MAX | 16 | 29 | 214 | 1110 | 1160 | 1580 | 1260 | 933 | 1760 | 1070 | 513 | 17 |
MIN | 6.8 | 9.2 | 12 | 20 | 23 | 62 | 52 | 16 | 12 | 17 | 12 | 9.6 |
CFSM | .07 | .13 | .24 | .93 | 1.52 | 2.11 | 1.52 | 1.29 | 1.73 | .83 | .41 | .09 |
IN. | .08 | .15 | .28 | 1.07 | 1.59 | 2.44 | 1.70 | 1.48 | 1.93 | .96 | .47 | .10 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 21.1 | 117 | 204 | 207 | 276 | 326 | 335 | 269 | 116 | 39.4 | 38.5 | 20.8 |
MAX | 157 | 643 | 1193 | 542 | 864 | 837 | 922 | 1115 | 633 | 163 | 485 | 110 |
(WY) | 1985 | 1986 | 1983 | 1982 | 1989 | 1979 | 1983 | 1983 | 1997 | 1976 | 1985 | 1992 |
MIN | 2.57 | 4.05 | 8.22 | 10.7 | 42.3 | 28.6 | 22.3 | 15.4 | 6.10 | 1.88 | 5.34 | 1.67 |
(WY) | 1967 | 1972 | 1977 | 1981 | 1996 | 1981 | 1981 | 1988 | 1972 | 1966 | 1994 | 1966 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1966 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 74838.7 | 48387.1 | ||||
ANNUAL MEAN | 205 | 133 | 163 | |||
HIGHEST ANNUAL MEAN | 332 | 1985 | ||||
LOWEST ANNUAL MEAN | 51.0 | 1967 | ||||
HIGHEST DAILY MEAN | 4610 | Jun 1 | 1760 | Jun 15 | 4880 | Dec 26 1982 |
LOWEST DAILY MEAN | 6.8 | Oct 1,2 | 6.8 | Oct 1,2 | .60 | A |
ANNUAL SEVEN-DAY MINIMUM | 7.3 | Sep 28 | 7.9 | Oct 1 | .77 | Sep 1 1966 |
INSTANTANEOUS PEAK FLOW | 1890 | Jun 15 | 5160 | Jan 31 1982 | ||
INSTANTANEOUS PEAK STAGE | 11.82 | Jun 15 | 16.32 | Jan 31 1982 | ||
INSTANTANEOUS LOW FLOW | 6.7 | Oct 1,2,4 | ||||
ANNUAL RUNOFF (CFSM) | 1.39 | .90 | 1.11 | |||
ANNUAL RUNOFF (INCHES) | 18.94 | 12.24 | 15.10 | |||
10 PERCENT EXCEEDS | 451 | 316 | 411 | |||
50 PERCENT EXCEEDS | 50 | 29 | 32 | |||
90 PERCENT EXCEEDS | 10 | 12 | 5.6 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |