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 | 11 | 17 | 16 | e12 | 579 | 226 | 171 | 625 | 187 | 471 | 24 | 11 |
2 | 9.6 | 19 | 15 | e15 | 599 | 238 | 170 | 554 | 497 | 424 | 23 | 9.9 |
3 | 9.3 | 40 | 15 | e19 | 613 | 289 | 187 | 493 | 576 | 386 | 18 | 9.1 |
4 | 10 | 30 | 14 | e16 | 565 | 299 | 212 | 448 | 653 | 342 | 14 | 9.0 |
5 | 10 | 21 | 13 | e14 | 500 | 310 | 210 | 435 | 948 | 307 | 11 | 9.0 |
6 | 17 | 20 | 14 | e15 | 441 | 348 | 210 | 425 | 797 | 274 | 11 | 8.9 |
7 | 13 | 19 | 18 | e17 | 723 | 338 | 222 | 396 | 683 | 249 | 12 | 8.5 |
8 | 9.9 | 21 | 15 | e16 | 1060 | 339 | 224 | 368 | 589 | 217 | 19 | 8.5 |
9 | 9.2 | 21 | 14 | e15 | 1100 | 367 | 248 | 354 | 502 | 186 | 12 | 8.6 |
10 | 9.1 | 49 | 13 | e15 | 1150 | 336 | 275 | 335 | 427 | 168 | 11 | 6.7 |
11 | 9.1 | 37 | 13 | e14 | 1100 | 315 | 255 | 311 | 381 | 152 | 10 | 7.1 |
12 | 9.2 | 26 | 13 | e14 | 930 | 299 | 235 | 304 | 488 | 130 | 26 | 7.7 |
13 | 9.0 | 24 | 12 | e14 | 817 | 301 | 238 | 524 | 1200 | 113 | 364 | 8.3 |
14 | 8.6 | 23 | 12 | e13 | 703 | 304 | 231 | 656 | 1450 | 99 | 63 | 7.9 |
15 | 8.8 | 22 | 12 | e13 | 591 | 275 | 305 | 634 | 1380 | 85 | 42 | 8.1 |
16 | 9.3 | 21 | 11 | e13 | 517 | 277 | 769 | 593 | 1580 | 75 | 31 | 7.0 |
17 | 11 | 21 | 11 | e14 | 470 | 292 | 1120 | 557 | 1340 | 67 | 21 | 6.9 |
18 | 10 | 20 | 11 | e16 | 429 | 299 | 1400 | 533 | 1010 | 61 | 18 | 7.2 |
19 | 13 | 20 | 14 | e19 | 393 | 308 | 1560 | 490 | 768 | 61 | 18 | 7.1 |
20 | 9.8 | 20 | 14 | e22 | 349 | 298 | 1450 | 437 | 615 | 68 | 18 | 7.1 |
21 | 9.8 | 19 | 13 | 24 | 316 | 282 | 1420 | 384 | 509 | 72 | 15 | 6.9 |
22 | 10 | 18 | 13 | 153 | 287 | 268 | 1230 | 363 | 428 | 62 | 13 | 6.6 |
23 | 11 | 18 | 12 | 435 | 277 | 256 | 1020 | 344 | 387 | 57 | 14 | 6.9 |
24 | 11 | 17 | 12 | 542 | 258 | 243 | 903 | 307 | 1250 | 51 | 25 | 6.7 |
25 | 11 | 17 | 12 | 676 | 246 | 232 | 756 | 282 | 2020 | 47 | 16 | 6.7 |
26 | 12 | 17 | 12 | 729 | 242 | 222 | 649 | 260 | 1550 | 42 | 14 | 6.4 |
27 | 12 | 16 | 12 | 748 | 238 | 206 | 668 | 240 | 1160 | 37 | 13 | 6.0 |
28 | 23 | 15 | 12 | 727 | 229 | 196 | 911 | 220 | 879 | 39 | 12 | 10 |
29 | 17 | 15 | 12 | 655 | --- | 187 | 812 | 205 | 681 | 37 | 12 | 30 |
30 | 34 | 16 | e11 | 570 | --- | 180 | 716 | 196 | 550 | 33 | 16 | 13 |
31 | 20 | --- | e11 | 521 | --- | 172 | --- | 183 | --- | 29 | 14 | --- |
TOTAL | 376.7 | 659 | 402 | 6086 | 15722 | 8502 | 18777 | 12456 | 25485 | 4441 | 930 | 262.8 |
MEAN | 12.2 | 22.0 | 13.0 | 196 | 562 | 274 | 626 | 402 | 850 | 143 | 30.0 | 8.76 |
MAX | 34 | 49 | 18 | 748 | 1150 | 367 | 1560 | 656 | 2020 | 471 | 364 | 30 |
MIN | 8.6 | 15 | 11 | 12 | 229 | 172 | 170 | 183 | 187 | 29 | 10 | 6.0 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1978 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 126 | 176 | 260 | 232 | 323 | 580 | 526 | 542 | 359 | 243 | 143 | 63.2 |
MAX | 1069 | 1236 | 1268 | 1316 | 975 | 2129 | 1704 | 1648 | 850 | 1370 | 1576 | 658 |
(WY) | 1994 | 1986 | 1983 | 1993 | 1982 | 1982 | 1979 | 1995 | 1999 | 1981 | 1981 | 1993 |
MIN | 8.31 | 9.77 | 12.1 | 11.0 | 14.9 | 28.4 | 91.8 | 45.2 | 13.7 | 8.51 | 6.57 | 5.46 |
(WY) | 1989 | 1989 | 1996 | 1980 | 1989 | 1989 | 1996 | 1988 | 1988 | 1988 | 1988 | 1988 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1978 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 121777.7 | 94099.5 | ||||
ANNUAL MEAN | 334 | 258 | 298 | |||
HIGHEST ANNUAL MEAN | 601 | 1993 | ||||
LOWEST ANNUAL MEAN | 105 | 1980 | ||||
HIGHEST DAILY MEAN | 2140 | Mar 21 | 2020 | Jun 25 | 6960 | Apr 13 1994 |
LOWEST DAILY MEAN | 8.6 | Oct 14 | 6.0 | Sep 27 | 3.7 | Sep 8 1988 |
ANNUAL SEVEN-DAY MINIMUM | 9.0 | Oct 9 | 6.6 | Sep 21 | 4.1 | Sep 4 1988 |
INSTANTANEOUS PEAK FLOW | 2590 | Jun 24 | 7810 | Apr 13 1994 | ||
INSTANTANEOUS PEAK STAGE | 19.88 | Jun 24 | 24.04 | Apr 13 1994 | ||
INSTANTANEOUS LOW FLOW | 5.6 | Sep 27,28 | ||||
10 PERCENT EXCEEDS | 904 | 719 | 750 | |||
50 PERCENT EXCEEDS | 169 | 61 | 125 | |||
90 PERCENT EXCEEDS | 10 | 9.8 | 11 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |