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 | 63 | 75 | e172 | 105 | 239 | 337 | 520 | 481 | 121 | 228 | 26 | 33 |
2 | 68 | 72 | 186 | 120 | 337 | 319 | 605 | 419 | 116 | 211 | 26 | 31 |
3 | 57 | 71 | 199 | 160 | 410 | 304 | 632 | 375 | 109 | 224 | 26 | 28 |
4 | 55 | 64 | 195 | 276 | 447 | 283 | 627 | 327 | 102 | 375 | 29 | 28 |
5 | 55 | 58 | 191 | 393 | 460 | 262 | 624 | 287 | 105 | 311 | 30 | 28 |
6 | 53 | 70 | 188 | 512 | 465 | 244 | 612 | 258 | 100 | 271 | 32 | 28 |
7 | 52 | 63 | 184 | 641 | 469 | 226 | 581 | 348 | 96 | 262 | 69 | 35 |
8 | 50 | 66 | 173 | 679 | 459 | 308 | 696 | 493 | 94 | 243 | 115 | 30 |
9 | 51 | 70 | 157 | 706 | 448 | 479 | 757 | 531 | 102 | 223 | 102 | 29 |
10 | 50 | 68 | 168 | 685 | 426 | 426 | 774 | 522 | 100 | 194 | 75 | 28 |
11 | 51 | 76 | 174 | 630 | 488 | 438 | 759 | 505 | 119 | 164 | 62 | 27 |
12 | 49 | 75 | 169 | e590 | 635 | 433 | 735 | 489 | 126 | 137 | 55 | 27 |
13 | 63 | 68 | 159 | e540 | 707 | 413 | 730 | 627 | 148 | 110 | 51 | 27 |
14 | 60 | 65 | 154 | 511 | 704 | 385 | 747 | 567 | 155 | 96 | 48 | 37 |
15 | 56 | 75 | 142 | e450 | 692 | 349 | 750 | 528 | 142 | 83 | 48 | 76 |
16 | 56 | 81 | 141 | e400 | 691 | 314 | 1080 | 473 | 125 | 73 | 46 | 45 |
17 | 54 | 75 | 143 | e350 | 735 | 321 | 1170 | 411 | 108 | 57 | 47 | 48 |
18 | 53 | 71 | 146 | 302 | 759 | 567 | 1160 | 342 | 102 | 43 | 45 | 44 |
19 | 53 | 71 | 148 | 269 | 741 | 663 | 1120 | 268 | 125 | 44 | 43 | 38 |
20 | 52 | 73 | 159 | 241 | 709 | 696 | 1080 | 219 | 102 | 41 | 42 | 40 |
21 | 50 | 74 | 154 | 212 | 668 | 694 | 1050 | 190 | 99 | 35 | 43 | 37 |
22 | 49 | e96 | 160 | 200 | 623 | 682 | 989 | 169 | 93 | 34 | 43 | 31 |
23 | 51 | e94 | 155 | 195 | 580 | 660 | 914 | 159 | 83 | 33 | 42 | 29 |
24 | 52 | e92 | 151 | 189 | 533 | 626 | 829 | 177 | 80 | 33 | 41 | 29 |
25 | 51 | e90 | 156 | 174 | 486 | 586 | 756 | 165 | 85 | 32 | 41 | 28 |
26 | 67 | e96 | 149 | 176 | 428 | 557 | 740 | 155 | 245 | 34 | 32 | 29 |
27 | 106 | e105 | 139 | 179 | 404 | 512 | 674 | 145 | 205 | 33 | 31 | 27 |
28 | 86 | e120 | 127 | 180 | 368 | 448 | 615 | 142 | 244 | 30 | 40 | 27 |
29 | 94 | e135 | 128 | 197 | --- | 391 | 564 | 145 | 261 | 28 | 40 | 26 |
30 | 84 | e155 | 122 | 203 | --- | 333 | 527 | 131 | 242 | 28 | 38 | 26 |
31 | 77 | --- | 113 | 212 | --- | 407 | --- | 125 | --- | 27 | 37 | --- |
TOTAL | 1868 | 2464 | 4902 | 10677 | 15111 | 13663 | 23417 | 10173 | 3934 | 3737 | 1445 | 996 |
MEAN | 60.3 | 82.1 | 158 | 344 | 540 | 441 | 781 | 328 | 131 | 121 | 46.6 | 33.2 |
MAX | 106 | 155 | 199 | 706 | 759 | 696 | 1170 | 627 | 261 | 375 | 115 | 76 |
MIN | 49 | 58 | 113 | 105 | 239 | 226 | 520 | 125 | 80 | 27 | 26 | 26 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 130 | 188 | 254 | 168 | 239 | 464 | 509 | 291 | 178 | 156 | 139 | 139 |
MAX | 1011 | 785 | 865 | 514 | 540 | 1510 | 1395 | 847 | 738 | 599 | 648 | 756 |
(WY) | 1987 | 1986 | 1983 | 1993 | 1998 | 1979 | 1993 | 1996 | 1996 | 1993 | 1978 | 1986 |
MIN | 16.6 | 16.5 | 12.7 | 10.6 | 11.9 | 61.8 | 79.9 | 31.3 | 23.1 | 23.9 | 15.0 | 18.3 |
(WY) | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1977 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 76270 | 92387 | ||||
ANNUAL MEAN | 209 | 253 | 238 | |||
HIGHEST ANNUAL MEAN | 428 | 1993 | ||||
LOWEST ANNUAL MEAN | 26.8 | 1977 | ||||
HIGHEST DAILY MEAN | 1290 | Feb 23 | 1170 | Apr 17 | 3470 | Sep 27 1986 |
LOWEST DAILY MEAN | 45 | Sep 11-14 | 26 | A | 7.5 | Feb 6 1977 |
ANNUAL SEVEN-DAY MINIMUM | 46 | Sep 10 | 27 | Jul 29 | 7.9 | Jan 31 1977 |
INSTANTANEOUS PEAK FLOW | 1180 | Apr 17 | 3530 | Sep 27 1986 | ||
INSTANTANEOUS PEAK STAGE | 7.53 | Apr 17 | 11.95 | Sep 27 1986 | ||
INSTANTANEOUS LOW FLOW | 20 | Aug 1 | ||||
10 PERCENT EXCEEDS | 482 | 661 | 574 | |||
50 PERCENT EXCEEDS | 141 | 149 | 123 | |||
90 PERCENT EXCEEDS | 53 | 33 | 43 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |