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 | 18 | 25 | 55 | 28 | 113 | 387 | 1390 | 595 | 291 | 220 | 50 | 53 |
2 | 16 | 24 | 43 | 33 | 203 | 342 | 1370 | 609 | 274 | 194 | 45 | 44 |
3 | 17 | 22 | 41 | 69 | 303 | 316 | 1060 | 692 | 254 | 198 | 44 | 42 |
4 | 16 | 23 | 40 | 260 | 317 | 298 | 838 | 615 | 240 | 421 | 55 | 41 |
5 | 16 | 27 | 42 | 493 | 296 | 278 | 685 | 537 | 236 | 705 | 184 | 40 |
6 | 16 | 32 | 35 | 573 | 264 | 266 | 593 | 522 | 226 | 474 | 162 | 35 |
7 | 16 | 36 | 34 | 840 | 240 | 256 | 536 | 1110 | 208 | 467 | 117 | 33 |
8 | 15 | 47 | 31 | 840 | 239 | 420 | 681 | 2500 | 201 | 721 | 110 | 30 |
9 | 21 | 33 | 31 | 636 | 244 | 973 | 1270 | 2530 | 227 | 511 | 76 | 34 |
10 | 17 | 27 | 37 | 470 | 234 | 806 | 1400 | 2340 | 427 | 363 | 64 | 30 |
11 | 21 | 24 | 35 | 356 | 330 | 659 | 1090 | 1600 | 697 | 287 | 62 | 27 |
12 | 19 | 27 | 34 | 364 | 891 | 525 | 841 | 1120 | 1240 | 241 | 54 | 29 |
13 | 23 | 26 | 31 | 308 | 913 | 458 | 734 | 1060 | 1170 | 210 | 48 | e24 |
14 | 36 | 24 | 27 | e310 | 664 | 421 | 727 | 845 | 826 | 185 | 45 | e50 |
15 | 33 | 26 | 30 | e290 | 528 | 363 | 630 | 713 | 664 | 165 | 44 | e120 |
16 | 24 | 26 | 32 | e270 | 459 | 331 | 2750 | 627 | 532 | 154 | 41 | e100 |
17 | 20 | 23 | 27 | e230 | 433 | 340 | 2550 | 531 | 449 | 136 | 41 | 57 |
18 | 20 | 29 | 31 | e200 | 408 | 846 | 2080 | 478 | 423 | 121 | 40 | 45 |
19 | 20 | 27 | 27 | e180 | 359 | 1470 | 1380 | 469 | 654 | 129 | 36 | 43 |
20 | 19 | 26 | 28 | e170 | 323 | 1410 | 1130 | 1620 | 649 | 162 | 34 | 38 |
21 | 17 | 28 | 26 | e150 | 296 | 1040 | 1830 | 1070 | 485 | 121 | 33 | 33 |
22 | 19 | 25 | 26 | e140 | 280 | 794 | 1790 | 709 | 393 | 107 | 33 | 35 |
23 | 19 | 29 | 27 | e130 | 262 | 650 | 1450 | 583 | 345 | 101 | 31 | 32 |
24 | 19 | 22 | 29 | e125 | 264 | 549 | 1110 | 538 | 312 | 90 | 38 | 31 |
25 | 23 | 28 | 30 | e119 | 256 | 483 | 909 | 489 | 285 | 82 | 148 | 33 |
26 | 26 | 27 | 35 | 114 | 250 | 454 | 957 | 425 | 460 | 74 | 162 | 32 |
27 | 31 | 27 | 29 | 109 | 322 | 424 | 926 | 378 | 309 | 69 | 85 | 30 |
28 | 57 | 28 | 35 | 107 | 427 | 400 | 781 | 379 | 314 | 67 | 82 | 25 |
29 | 38 | 34 | 36 | 109 | --- | 372 | 702 | 391 | 290 | 61 | 123 | 28 |
30 | 33 | 39 | 33 | 109 | --- | 346 | 643 | 353 | 254 | 60 | 80 | 31 |
31 | 26 | --- | 30 | 107 | --- | 620 | --- | 326 | --- | 56 | 58 | --- |
TOTAL | 711 | 841 | 1027 | 8239 | 10118 | 17297 | 34833 | 26754 | 13335 | 6952 | 2225 | 1225 |
MEAN | 22.9 | 28.0 | 33.1 | 266 | 361 | 558 | 1161 | 863 | 445 | 224 | 71.8 | 40.8 |
MAX | 57 | 47 | 55 | 840 | 913 | 1470 | 2750 | 2530 | 1240 | 721 | 184 | 120 |
MIN | 15 | 22 | 26 | 28 | 113 | 256 | 536 | 326 | 201 | 56 | 31 | 24 |
CFSM | .06 | .07 | .09 | .69 | .93 | 1.44 | 3.00 | 2.23 | 1.15 | .58 | .19 | .11 |
IN. | .07 | .08 | .10 | .79 | .97 | 1.66 | 3.35 | 2.57 | 1.28 | .67 | .21 | .12 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 152 | 191 | 205 | 225 | 317 | 533 | 495 | 407 | 356 | 234 | 167 | 144 |
MAX | 1318 | 1052 | 1234 | 946 | 1215 | 2392 | 1782 | 1316 | 1734 | 1863 | 1202 | 1181 |
(WY) | 1955 | 1986 | 1983 | 1974 | 1997 | 1979 | 1993 | 1996 | 1993 | 1996 | 1987 | 1980 |
MIN | 11.3 | 12.6 | 11.3 | 6.19 | 15.5 | 70.2 | 61.1 | 47.8 | 57.4 | 20.5 | 17.9 | 12.3 |
(WY) | 1954 | 1954 | 1964 | 1940 | 1940 | 1956 | 1963 | 1949 | 1988 | 1940 | 1971 | 1953 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 99428 | 123557 | ||||
ANNUAL MEAN | 272 | 339 | 285 | |||
HIGHEST ANNUAL MEAN | 752 | 1993 | ||||
LOWEST ANNUAL MEAN | 65.7 | 1977 | ||||
HIGHEST DAILY MEAN | 7010 | Feb 21 | 2750 | Apr 16 | 14600 | Jul 18 1996 |
LOWEST DAILY MEAN | 15 | Sep 30, Oct. 8 | 15 | Oct 8 | 3.0 | Jan 20 1940 |
ANNUAL SEVEN-DAY MINIMUM | 16 | Oct 2 | 16 | Oct 2 | 4.1 | Jan 19 1940 |
INSTANTANEOUS PEAK FLOW | 3160 | Apr 16 | 25400 | Jul 18 1996 | ||
INSTANTANEOUS PEAK STAGE | 7.67 | Apr 16 | 13.37 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | 14 | Oct 1 | 2.1 | Jan 20 1940 | ||
ANNUAL RUNOFF (CFSM) | .70 | .87 | .74 | |||
ANNUAL RUNOFF (INCHES) | 9.56 | 11.88 | 10.02 | |||
10 PERCENT EXCEEDS | 416 | 845 | 663 | |||
50 PERCENT EXCEEDS | 141 | 162 | 130 | |||
90 PERCENT EXCEEDS | 22 | 26 | 19 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |