DISCHARGE: February 1908 to December 1912, August 1914 to current year. Monthly discharge only for some periods, published in WSP 1308. |
STAGE: Water years 1994-2001. |
CHEMICAL: Water years 1978-91. |
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 1370 | 1070 | 1480 | e1700 | 6730 | 4670 | 845 | 476 | 1120 | 849 | 248 | 138 |
2 | 1270 | 1140 | 2730 | e1500 | 5830 | 4080 | 827 | 415 | e1000 | 876 | 240 | 119 |
3 | 1110 | 1130 | 1670 | e1200 | 3960 | 3810 | 820 | 319 | e500 | 841 | 423 | 108 |
4 | 1040 | 1110 | 1610 | e1100 | 3120 | 3680 | 809 | 277 | e2500 | 795 | 565 | 101 |
5 | 4040 | 1100 | 1600 | e1000 | 2860 | 3580 | 742 | 253 | e4500 | 797 | 581 | 96 |
6 | 7070 | 1140 | 1840 | e950 | 2760 | 3490 | 700 | 239 | e6200 | 746 | 575 | 91 |
7 | 11000 | 1850 | 2190 | e880 | 2720 | 3410 | 641 | 233 | 6940 | 561 | 573 | 88 |
8 | 12400 | 2020 | 2310 | 849 | 2860 | 3360 | 547 | 235 | 8690 | 758 | 574 | 85 |
9 | 7870 | 1880 | 2320 | 833 | 4820 | 3290 | 482 | 228 | 8130 | 1040 | 573 | 103 |
10 | 3080 | 5300 | 2310 | 1110 | 7980 | 3000 | 534 | 217 | 3960 | 1750 | 573 | 130 |
11 | 2060 | 5610 | 2340 | 1490 | 10600 | 2760 | 1360 | 200 | 1880 | 858 | 573 | 117 |
12 | 2120 | 3670 | 2880 | 1740 | 8790 | 2520 | 1450 | 189 | 1560 | 581 | 569 | 102 |
13 | 2050 | 2790 | 2830 | 1790 | 5450 | 2390 | 892 | 181 | 1370 | 434 | 567 | 91 |
14 | 1730 | 3550 | 2530 | 1890 | 4150 | 2190 | 876 | 175 | 1150 | 354 | 564 | 84 |
15 | 1450 | 2660 | 2540 | 2720 | 4480 | 1970 | 1130 | 169 | 1060 | 561 | 516 | 81 |
16 | 1170 | 2040 | 2520 | 3580 | 4420 | 1960 | 1340 | 162 | 1060 | 715 | 407 | 78 |
17 | 1110 | 1790 | 2470 | 3340 | 3940 | 2180 | 1460 | 160 | 1090 | 730 | 330 | 77 |
18 | 1140 | 1670 | 2420 | 2880 | 3480 | 1920 | 1440 | 402 | 1230 | 1540 | 318 | 86 |
19 | 1430 | 1600 | e2400 | 2720 | 3260 | 1700 | 1390 | 1080 | 1230 | 1590 | 314 | 112 |
20 | 1480 | 1570 | e2400 | 2530 | 3170 | 1580 | 1370 | 620 | 1120 | 1190 | 307 | 142 |
21 | 1470 | 1520 | e2350 | 2300 | 3100 | 1430 | 1300 | 399 | 1050 | 807 | 303 | 138 |
22 | 1450 | 1480 | e2350 | 2230 | 3050 | 1360 | 1220 | 421 | 1000 | 727 | 302 | 114 |
23 | 1420 | 1460 | e2350 | 2180 | 3000 | 1310 | 1190 | 347 | 1120 | 697 | 300 | 88 |
24 | 1270 | 1440 | e2300 | 2100 | 2990 | 1220 | 1170 | 300 | 1210 | 709 | 323 | 78 |
25 | 1230 | 1780 | e2300 | 2030 | 5530 | 1130 | 1090 | e325 | 1080 | 1170 | 334 | 74 |
26 | 1230 | 4400 | e2300 | 2000 | 6730 | 1060 | 1000 | 344 | 934 | 827 | 420 | 71 |
27 | 1220 | 4510 | e2300 | 1940 | 7240 | 1040 | 854 | 341 | 888 | 527 | 485 | 69 |
28 | 1210 | 2660 | e2300 | 1850 | 6140 | 1030 | 683 | 475 | 875 | 373 | 312 | 69 |
29 | 1200 | 1820 | e2300 | 1850 | --- | 1020 | 551 | 383 | 864 | 305 | 219 | 70 |
30 | 1120 | 1420 | e2150 | 5130 | --- | 1010 | 495 | 288 | 854 | 280 | 156 | 70 |
31 | 992 | --- | e1950 | 6480 | --- | 891 | --- | 444 | --- | 261 | 131 | --- |
TOTAL | 79802 | 67180 | 70340 | 65892 | 133160 | 70041 | 29208 | 10297 | 66165 | 24249 | 12675 | 2870 |
MEAN | 2574 | 2239 | 2269 | 2126 | 4756 | 2259 | 974 | 332 | 2206 | 782 | 409 | 95.7 |
MAX | 12400 | 5610 | 2880 | 6480 | 10600 | 4670 | 1460 | 1080 | 8690 | 1750 | 581 | 142 |
MIN | 992 | 1070 | 1480 | 833 | 2720 | 891 | 482 | 160 | 500 | 261 | 131 | 69 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 2001, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 643 | 1001 | 2007 | 2392 | 2750 | 2985 | 2489 | 1889 | 1760 | 1294 | 886 | 565 |
MAX | 3349 | 5459 | 5783 | 7027 | 6884 | 7565 | 6462 | 8080 | 5486 | 3122 | 2599 | 3366 |
(WY) | 1970 | 1994 | 1986 | 1993 | 1982 | 1979 | 1979 | 1996 | 1974 | 1974 | 1974 | 1993 |
MIN | 34.3 | 39.1 | 20.6 | 19.0 | 233 | 401 | 236 | 165 | 61.9 | 48.7 | 50.5 | 30.2 |
(WY) | 1988 | 1977 | 1977 | 1977 | 2000 | 2000 | 2000 | 1987 | 1988 | 1988 | 1976 | 1976 |
SUMMARY STATISTICS | FOR 2000 CALENDAR YEAR | FOR 2001 WATER YEAR | WATER YEARS 1970 - 2001 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 468542 | 631879 | ||||
ANNUAL MEAN | 1280 | 1731 | 1717 | |||
HIGHEST ANNUAL MEAN | 3415 | 1974 | ||||
LOWEST ANNUAL MEAN | 583 | 1977 | ||||
HIGHEST DAILY MEAN | 12400 | Oct 8 | 12400 | Oct 8 | 23900 | Apr 30 1996 |
LOWEST DAILY MEAN | 73 | Feb 16 | 69 | Sep 27,28 | 17 | A |
ANNUAL SEVEN-DAY MINIMUM | 80 | Feb 10 | 72 | Sep 24 | 17 | Dec 23 1976 |
MAXIMUM PEAK FLOW | 14000 | Oct 8 | 30000 B | Jun 16 1970 | ||
MAXIMUM PEAK STAGE | 23.39 | Oct 8 | 27.41 | Apr 30 1996 | ||
INSTANTANEOUS LOW FLOW | 67 | Sep 27,28 | ||||
10 PERCENT EXCEEDS | 2530 | 3730 | 4350 | |||
50 PERCENT EXCEEDS | 746 | 1170 | 1030 | |||
90 PERCENT EXCEEDS | 135 | 179 | 75 |
A - Dec. 23-29, 1976; Feb. 5-9, 1977. | |
B - About 30,000 ft3/s, result of levee break. |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |