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 | 19 | 22 | 417 | 273 | 416 | 493 | 2030 | 992 | 688 | e950 | 139 | 13 |
2 | 18 | 19 | 600 | 232 | 381 | 466 | 1590 | 1470 | 596 | 1050 | 122 | 12 |
3 | 18 | 21 | 650 | 240 | 346 | 436 | 1330 | 2370 | 523 | 915 | 84 | 12 |
4 | 17 | e23 | 557 | 229 | 308 | 408 | 1450 | 3510 | 471 | 712 | 65 | 12 |
5 | 15 | e25 | 415 | 237 | 287 | 378 | 1740 | 4580 | 447 | 571 | 56 | 12 |
6 | 14 | 27 | 299 | 374 | 274 | 343 | 1940 | 4280 | 423 | 512 | 82 | 11 |
7 | 13 | 27 | 227 | 626 | 256 | 315 | 1680 | 3240 | 399 | 465 | 88 | 11 |
8 | 13 | 42 | 188 | 1140 | 236 | 380 | 1380 | 2710 | 368 | 538 | 86 | 9.9 |
9 | 16 | 59 | 170 | 1740 | 220 | 718 | 1420 | 2700 | 531 | 887 | 108 | 9.6 |
10 | 18 | 59 | 179 | 2180 | 208 | 1120 | 1490 | 2570 | 818 | 1010 | 126 | 9.2 |
11 | 20 | 55 | 307 | 2150 | 218 | 1430 | 1230 | 2010 | 1030 | 808 | 118 | 8.2 |
12 | 22 | 47 | 426 | 1730 | 292 | 1360 | 962 | 1520 | 1480 | 580 | 146 | 7.0 |
13 | 20 | 40 | 439 | 1300 | 390 | 1100 | 780 | 1140 | 1520 | 437 | 107 | 6.7 |
14 | 20 | 37 | 380 | 966 | 415 | 921 | 678 | 899 | 2430 | 351 | 69 | 6.9 |
15 | 20 | 37 | 307 | 762 | 380 | 820 | 680 | 828 | 4060 | 291 | 50 | 7.0 |
16 | 28 | 36 | 255 | 629 | 348 | 771 | 769 | 762 | 4280 | 248 | 41 | 7.4 |
17 | 25 | 37 | 224 | 549 | 404 | 834 | 729 | 650 | 4360 | 216 | 34 | 7.6 |
18 | 19 | 38 | 201 | 478 | 630 | 1210 | 635 | 552 | 3830 | 189 | 31 | 8.7 |
19 | 17 | 35 | 181 | 411 | 882 | 1850 | 551 | 487 | 3890 | 166 | 27 | 12 |
20 | 16 | 34 | 163 | 353 | 1030 | 3010 | 492 | 521 | 3210 | 145 | 27 | 12 |
21 | 15 | 36 | 147 | 316 | 1000 | 3740 | 459 | 784 | 2770 | 133 | 25 | 13 |
22 | 14 | 39 | 147 | 292 | 894 | 3930 | 433 | 1000 | 2320 | 127 | 21 | 19 |
23 | 13 | 47 | 196 | 285 | 779 | 3430 | 417 | 1440 | 2770 | 113 | 19 | 19 |
24 | 12 | 46 | 259 | 274 | 681 | 2550 | 389 | 2040 | 2760 | 155 | 18 | 14 |
25 | 13 | 43 | 433 | 260 | 602 | 1870 | 366 | 2920 | 2420 | 204 | 16 | 9.2 |
26 | 14 | 39 | 605 | 249 | 540 | 1460 | 351 | 3370 | 1830 | 154 | 15 | 7.7 |
27 | 14 | 37 | 703 | 266 | 512 | 1160 | 334 | 2890 | 1320 | 112 | 15 | 10 |
28 | 20 | 36 | 660 | 334 | 500 | 1520 | 307 | 2060 | 960 | 89 | 14 | 12 |
29 | 40 | 38 | 544 | 410 | --- | 2510 | 328 | 1480 | 805 | 77 | 14 | 9.2 |
30 | 38 | 149 | 436 | 452 | --- | 3260 | 675 | 1070 | 881 | 70 | 14 | 8.1 |
31 | 29 | --- | 354 | 448 | --- | 2750 | --- | 839 | --- | 78 | 13 | --- |
TOTAL | 590 | 1230 | 11069 | 20185 | 13429 | 46543 | 27615 | 57684 | 54190 | 12353 | 1790 | 316.4 |
MEAN | 19.0 | 41.0 | 357 | 651 | 480 | 1501 | 921 | 1861 | 1806 | 398 | 57.7 | 10.5 |
MAX | 40 | 149 | 703 | 2180 | 1030 | 3930 | 2030 | 4580 | 4360 | 1050 | 146 | 19 |
MIN | 12 | 19 | 147 | 229 | 208 | 315 | 307 | 487 | 368 | 70 | 13 | 6.7 |
CFSM | .04 | .09 | .75 | 1.38 | 1.01 | 3.17 | 1.95 | 3.93 | 3.82 | .84 | .12 | .02 |
IN. | .05 | .10 | .87 | 1.59 | 1.06 | 3.66 | 2.17 | 4.54 | 4.26 | .97 | .14 | .02 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 158 | 331 | 561 | 488 | 615 | 803 | 756 | 811 | 515 | 288 | 188 | 100 |
MAX | 1189 | 2205 | 1626 | 1862 | 2028 | 2565 | 2116 | 2809 | 1864 | 1166 | 952 | 817 |
(WY) | 1994 | 1993 | 1988 | 1974 | 1982 | 1979 | 1994 | 1996 | 1974 | 1973 | 1981 | 1993 |
MIN | 12.7 | 24.4 | 16.7 | 14.2 | 63.4 | 132 | 85.5 | 103 | 48.0 | 16.8 | 14.9 | 10.5 |
(WY) | 1985 | 1977 | 1977 | 1977 | 1977 | 1992 | 1971 | 1976 | 1988 | 1988 | 1988 | 1998 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1971 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 127811.5 | 246994.4 | ||||
ANNUAL MEAN | 350 | 677 | 467 | |||
HIGHEST ANNUAL MEAN | 838 | 1973 | ||||
LOWEST ANNUAL MEAN | 185 | 1980 | ||||
HIGHEST DAILY MEAN | 4340 | Feb 28 | 4580 | May 5 | 9690 | Apr 14 1994 |
LOWEST DAILY MEAN | 9.1 | Aug 3 | 6.7 | Sep 13 | .00 | Sep 11 1988 |
ANNUAL SEVEN-DAY MINIMUM | 11 | Jul 30 | 7.3 | Sep 11 | 2.7 | Sep 8 1988 |
INSTANTANEOUS PEAK FLOW | 4780 | May 5 | 9950 | Apr 13 1994 | ||
INSTANTANEOUS PEAK STAGE | 13.81 | May 5 | 17.30 | Apr 13 1994 | ||
INSTANTANEOUS LOW FLOW | 6.6 | Sep 12,13 | ||||
ANNUAL RUNOFF (CFSM) | .74 | 1.43 | .99 | |||
ANNUAL RUNOFF (INCHES) | 10.05 | 19.43 | 13.42 | |||
10 PERCENT EXCEEDS | 977 | 2020 | 1250 | |||
50 PERCENT EXCEEDS | 149 | 346 | 184 | |||
90 PERCENT EXCEEDS | 19 | 14 | 20 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |