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 | 6.5 | 15 | 35 | e34 | 75 | 56 | 433 | 143 | 23 | 99 | 16 | 15 |
2 | 6.1 | 15 | 26 | 31 | 274 | 51 | 358 | 113 | 21 | 70 | 17 | 14 |
3 | 6.5 | 15 | 22 | 45 | 250 | 48 | 228 | 93 | 22 | 66 | 22 | 16 |
4 | 6.9 | 15 | 19 | 496 | 174 | 55 | 161 | 86 | 22 | 341 | 900 | 16 |
5 | 8.0 | 15 | 17 | 548 | 110 | 65 | 124 | 80 | 24 | 177 | 1230 | 15 |
6 | 9.0 | 16 | 16 | 584 | 87 | 62 | 104 | 241 | 23 | 89 | 369 | 13 |
7 | 8.5 | 18 | 16 | 358 | 78 | 56 | 101 | 2340 | 22 | 313 | 256 | 411 |
8 | 8.4 | 16 | 15 | 435 | 69 | 224 | 286 | 1810 | 21 | 313 | 368 | 207 |
9 | 10 | 15 | 15 | 524 | 61 | 677 | 315 | 754 | 44 | 170 | 235 | 82 |
10 | 11 | 14 | 18 | 335 | 57 | 422 | 215 | 384 | 46 | 96 | 252 | 49 |
11 | 12 | 13 | 23 | 246 | 362 | 316 | 148 | 265 | 315 | 65 | 152 | 36 |
12 | 9.2 | 12 | 29 | 165 | 506 | 227 | 116 | 206 | 409 | 50 | 116 | 28 |
13 | 12 | 12 | 26 | 106 | 265 | 163 | 113 | 173 | 181 | 42 | 69 | 23 |
14 | 13 | 14 | 25 | e85 | 183 | 146 | 214 | 143 | 104 | 37 | 49 | 22 |
15 | 12 | 16 | 21 | e65 | 122 | 134 | 151 | 104 | 94 | 34 | 40 | 21 |
16 | 12 | 18 | 20 | e50 | 96 | 122 | 123 | 72 | 69 | 31 | 33 | 21 |
17 | 12 | 20 | 22 | e46 | 177 | 366 | 102 | 60 | 53 | 27 | 28 | 19 |
18 | 10 | 16 | 24 | e44 | 440 | 1170 | 84 | 53 | 52 | 24 | 26 | 16 |
19 | 9.0 | 15 | 28 | e43 | 284 | 897 | 74 | 50 | 140 | 59 | 23 | 15 |
20 | 9.9 | 14 | 30 | e37 | 192 | 478 | 80 | 45 | 81 | 60 | 20 | 15 |
21 | 9.3 | 14 | 29 | 34 | 131 | 315 | 445 | 42 | 56 | 41 | 19 | 13 |
22 | 8.1 | 14 | 29 | 32 | 103 | 242 | 295 | 39 | 43 | 40 | 18 | 12 |
23 | 8.6 | 13 | 78 | 32 | 87 | 204 | 189 | 45 | 38 | 49 | 16 | 13 |
24 | 9.9 | 13 | 76 | 31 | 88 | 175 | 121 | 42 | 33 | 39 | 24 | 13 |
25 | 11 | 12 | 185 | 29 | 80 | 156 | 97 | 36 | 29 | 29 | 38 | 14 |
26 | 17 | 11 | 192 | 27 | 70 | 133 | 99 | 32 | 591 | 25 | 25 | 14 |
27 | 97 | 13 | 105 | 27 | 72 | 94 | 122 | 28 | 457 | 23 | 19 | e13 |
28 | 57 | 18 | 68 | 27 | 65 | 124 | 90 | 27 | 256 | 21 | 20 | 13 |
29 | 29 | 40 | e48 | 34 | --- | 135 | 193 | 26 | 172 | 20 | 22 | 14 |
30 | 21 | 53 | e41 | 44 | --- | 103 | 178 | 27 | 147 | 18 | 19 | 21 |
31 | 17 | --- | e37 | 45 | --- | 165 | --- | 25 | --- | 17 | 16 | --- |
TOTAL | 476.9 | 505 | 1335 | 4639 | 4558 | 7581 | 5359 | 7584 | 3588 | 2485 | 4457 | 1194 |
MEAN | 15.4 | 16.8 | 43.1 | 150 | 163 | 245 | 179 | 245 | 120 | 80.2 | 144 | 39.8 |
MAX | 97 | 53 | 192 | 584 | 506 | 1170 | 445 | 2340 | 591 | 341 | 1230 | 411 |
MIN | 6.1 | 11 | 15 | 27 | 57 | 48 | 74 | 25 | 21 | 17 | 16 | 12 |
CFSM | .14 | .16 | .40 | 1.40 | 1.52 | 2.29 | 1.67 | 2.29 | 1.12 | .75 | 1.34 | .37 |
IN. | .17 | .18 | .46 | 1.61 | 1.58 | 2.64 | 1.86 | 2.64 | 1.25 | .86 | 1.55 | .42 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 38.7 | 64.1 | 81.4 | 83.4 | 107 | 172 | 169 | 128 | 100 | 57.4 | 34.4 | 40.6 |
MAX | 458 | 359 | 552 | 306 | 416 | 726 | 566 | 488 | 581 | 432 | 144 | 372 |
(WY) | 1955 | 1991 | 1983 | 1974 | 1997 | 1979 | 1947 | 1974 | 1981 | 1957 | 1998 | 1961 |
MIN | 3.05 | 5.34 | 3.15 | 3.89 | 5.54 | 18.9 | 13.8 | 20.1 | 10.9 | 7.17 | 3.36 | 4.35 |
(WY) | 1964 | 1964 | 1964 | 1963 | 1963 | 1964 | 1963 | 1985 | 1988 | 1988 | 1964 | 1966 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1945 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 30498.3 | 43761.9 | ||||
ANNUAL MEAN | 83.6 | 120 | 89.5 | |||
HIGHEST ANNUAL MEAN | 168 | 1993 | ||||
LOWEST ANNUAL MEAN | 20.8 | 1963 | ||||
HIGHEST DAILY MEAN | 3720 A | Feb 21 | 2340 | May 7 | 8400 | Jun 13 1981 |
LOWEST DAILY MEAN | 6.1 | Oct 2 | 6.1 | Oct 2 | .80 | Aug 16 1964 |
ANNUAL SEVEN-DAY MINIMUM | 7.0 | Sep 29 | 7.4 | Oct 1 | 1.0 | Aug 12 1964 |
INSTANTANEOUS PEAK FLOW | 2990 | May 7 | 17300 B | Jun 13 1981 | ||
INSTANTANEOUS PEAK STAGE | 6.07 | May 7 | 14.90 | Jun 13 1981 | ||
INSTANTANEOUS LOW FLOW | 5.6 | Oct 2 | .50 | C | ||
ANNUAL RUNOFF (CFSM) | .78 | 1.12 | .84 | |||
ANNUAL RUNOFF (INCHES) | 10.60 | 15.21 | 11.36 | |||
10 PERCENT EXCEEDS | 146 | 314 | 194 | |||
50 PERCENT EXCEEDS | 40 | 45 | 29 | |||
90 PERCENT EXCEEDS | 11 | 13 | 7.4 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |