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 | 12 | 17 | 18 | 20 | 1030 | 464 | 327 | 1200 | 679 | 603 | 44 | 15 |
2 | 13 | 16 | 18 | e29 | 1180 | 403 | 302 | 1060 | 925 | 748 | 38 | 15 |
3 | 14 | 16 | 18 | e21 | 1080 | 418 | 286 | 965 | 1170 | 757 | 36 | 15 |
4 | 16 | 15 | 19 | e17 | 865 | 471 | 297 | 889 | 1170 | 573 | 34 | 15 |
5 | 16 | 15 | 19 | e15 | 679 | 476 | 258 | 859 | 1960 | 463 | 32 | 15 |
6 | 30 | 15 | 23 | e17 | 585 | 497 | 288 | 885 | 1560 | 394 | 33 | 14 |
7 | 27 | 16 | 103 | e20 | 559 | 502 | 235 | 1050 | 1160 | 340 | 39 | 13 |
8 | 20 | 16 | 104 | e18 | 647 | 497 | 239 | 920 | 936 | 300 | 48 | 12 |
9 | 18 | 23 | 79 | e17 | 836 | 539 | 296 | 798 | 815 | 270 | 44 | 11 |
10 | 16 | 48 | 52 | e17 | 818 | 532 | 307 | 725 | 734 | 234 | 37 | 9.6 |
11 | 14 | 96 | 44 | e16 | 732 | 429 | 290 | 690 | 765 | 202 | 32 | 9.8 |
12 | 14 | 56 | 39 | e16 | 676 | 371 | 252 | 837 | 3760 | 179 | 66 | 10 |
13 | 13 | 41 | 35 | e15 | 551 | 360 | 221 | 3130 | 6080 | 160 | 68 | 11 |
14 | 11 | 33 | 33 | e15 | 474 | 360 | 221 | 4330 | 10100 | 147 | 54 | 9.8 |
15 | 11 | 28 | 28 | e14 | 451 | 377 | 301 | 2700 | 10400 | 136 | 43 | 9.1 |
16 | 11 | 25 | 27 | e14 | 418 | 561 | 2200 | 1970 | 5270 | 118 | 36 | 8.9 |
17 | 14 | 23 | 26 | e18 | 369 | 1290 | 4470 | 5900 | 2300 | 107 | 30 | 8.6 |
18 | 31 | 21 | 26 | e28 | 333 | 1330 | 3870 | 6700 | 1750 | 100 | 26 | 8.7 |
19 | 41 | 20 | 25 | e33 | 315 | 960 | 2550 | 2690 | 1450 | 92 | 25 | 8.8 |
20 | 36 | 18 | 27 | e39 | 282 | 783 | 1950 | 1940 | 1250 | 85 | 23 | 8.7 |
21 | 31 | 17 | 25 | e54 | 251 | 703 | 1660 | 1630 | 1110 | 78 | 23 | 9.0 |
22 | 19 | 18 | 22 | e700 | 239 | 610 | 1510 | 1870 | 989 | 73 | 21 | 9.2 |
23 | 15 | 17 | 22 | e2300 | 250 | 538 | 1530 | 1560 | 897 | 67 | 22 | 9.0 |
24 | 17 | 16 | 21 | e2700 | 254 | 494 | 1440 | 1390 | 822 | 59 | 28 | 8.3 |
25 | 18 | 17 | 20 | 1820 | 245 | 434 | 1230 | 1200 | 873 | 56 | 28 | 8.2 |
26 | 16 | 16 | 20 | 1300 | 236 | 383 | 1100 | 1040 | 835 | 54 | 26 | 8.0 |
27 | 17 | 15 | 20 | 1500 | 296 | 365 | 1090 | 926 | 718 | 51 | 22 | 11 |
28 | 21 | 15 | 20 | 2500 | 430 | 361 | 1540 | 848 | 641 | 56 | 21 | 15 |
29 | 17 | 17 | 19 | 1560 | --- | 344 | 1650 | 781 | 567 | 55 | 19 | 15 |
30 | 16 | 19 | 18 | 1060 | --- | 312 | 1420 | 727 | 495 | 56 | 17 | 13 |
31 | 18 | --- | 22 | 900 | --- | 310 | --- | 700 | --- | 49 | 16 | --- |
TOTAL | 583 | 725 | 992 | 16793 | 15081 | 16474 | 33330 | 52910 | 62181 | 6662 | 1031 | 333.7 |
MEAN | 18.8 | 24.2 | 32.0 | 542 | 539 | 531 | 1111 | 1707 | 2073 | 215 | 33.3 | 11.1 |
MAX | 41 | 96 | 104 | 2700 | 1180 | 1330 | 4470 | 6700 | 10400 | 757 | 68 | 15 |
MIN | 11 | 15 | 18 | 14 | 236 | 310 | 221 | 690 | 495 | 49 | 16 | 8.0 |
CFSM | .02 | .03 | .04 | .71 | .70 | .69 | 1.45 | 2.23 | 2.70 | .28 | .04 | .01 |
IN. | .03 | .04 | .05 | .81 | .73 | .80 | 1.62 | 2.57 | 3.02 | .32 | .05 | .02 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 198 | 276 | 403 | 478 | 624 | 951 | 1075 | 911 | 786 | 374 | 182 | 229 |
MAX | 2765 | 3340 | 4062 | 2808 | 2089 | 3157 | 3136 | 4216 | 3322 | 2687 | 2734 | 4330 |
(WY) | 1987 | 1986 | 1983 | 1993 | 1951 | 1979 | 1973 | 1995 | 1974 | 1951 | 1981 | 1993 |
MIN | .59 | 2.47 | 2.40 | 6.01 | 14.9 | 68.1 | 99.7 | 114 | 21.6 | 6.09 | 1.22 | 1.84 |
(WY) | 1957 | 1964 | 1964 | 1945 | 1963 | 1956 | 1977 | 1958 | 1963 | 1988 | 1988 | 1988 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1945 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 287612.9 | 207095.7 | ||||
ANNUAL MEAN | 788 | 567 | 539 | |||
HIGHEST ANNUAL MEAN | 1672 | 1993 | ||||
LOWEST ANNUAL MEAN | 78.2 | 1989 | ||||
HIGHEST DAILY MEAN | 11700 | May 9 | 10400 | Jun 15 | 34000 | Dec 4 1982 |
LOWEST DAILY MEAN | 9.9 | Sep 30 | 8.0 | Sep 26 | .20 | A |
ANNUAL SEVEN-DAY MINIMUM | 11 | Sep 24 | 8.6 | Sep 20 | .20 | Oct 27 1956 |
INSTANTANEOUS PEAK FLOW | 13800 | Jun 14 | 44800 | Dec 4 1982 | ||
INSTANTANEOUS PEAK STAGE | 16.89 | Jun 14 | 20.21 B | Dec 4 1982 | ||
INSTANTANEOUS LOW FLOW | 7.2 | Sep 26, 27 | 0.20 C | |||
ANNUAL RUNOFF (CFSM) | 1.03 | .74 | .70 | |||
ANNUAL RUNOFF (INCHES) | 13.95 | 10.04 | 9.55 | |||
10 PERCENT EXCEEDS | 1910 | 1470 | 1290 | |||
50 PERCENT EXCEEDS | 381 | 85 | 188 | |||
90 PERCENT EXCEEDS | 15 | 15 | 12 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |