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 | 5690 | 7720 | 4060 | e3500 | 39400 | 14800 | 10300 | 46100 | 14300 | 14300 | 6660 | 5580 |
2 | 4680 | 6880 | 5140 | e3600 | 38000 | 16000 | 6800 | 43300 | 19000 | 13500 | 5530 | 5260 |
3 | 5780 | 5650 | 4860 | e3000 | 35900 | 16300 | e7500 | 39100 | 22200 | 14200 | 5410 | 5290 |
4 | 5500 | 3170 | 5580 | e3500 | 38800 | 14900 | 6820 | 33000 | 21000 | 13800 | 5570 | 5100 |
5 | 5430 | 3800 | 5460 | e3000 | 32400 | 16000 | 8170 | 30800 | 19600 | 13300 | 4800 | 4930 |
6 | 5280 | 4180 | 6460 | e3100 | 32600 | 17200 | 9100 | 27300 | 18900 | 14100 | 5150 | 4580 |
7 | 7220 | 3790 | 9870 | e3400 | 29600 | 16000 | 8460 | 26600 | 17700 | 12400 | 5080 | 5160 |
8 | 6350 | 4120 | 11500 | e3100 | 25800 | 16000 | 11000 | 26500 | 16800 | 10700 | 5900 | 5060 |
9 | 6370 | 3830 | 10300 | e3000 | 26600 | 17000 | 13500 | 23800 | 15500 | 8930 | 4970 | 4110 |
10 | 6140 | e8000 | 9440 | e3100 | 24600 | 16500 | 15400 | 21700 | 14400 | 8810 | 4690 | 3570 |
11 | 5320 | 13500 | 7870 | e3200 | 22800 | 15800 | 16700 | 20500 | 15400 | 8210 | 4880 | 3640 |
12 | 5830 | 11300 | 7530 | e3100 | 28300 | 15400 | 16000 | 21400 | 18500 | 8260 | 4710 | 3420 |
13 | 5040 | 10800 | 7060 | e3000 | 26000 | 15500 | 15000 | 25100 | 23400 | 7080 | 6950 | 3760 |
14 | 4930 | 10200 | 5670 | e3100 | e24000 | 15800 | 14700 | 29100 | 31500 | 6000 | 5840 | 4160 |
15 | 3970 | 8790 | 5010 | e3200 | 22600 | 14300 | 15900 | 28800 | 38000 | 5770 | 5630 | 4370 |
16 | 3400 | 8670 | 4660 | e3300 | 21900 | 12200 | 19900 | 26500 | 39700 | 5500 | 4910 | 2940 |
17 | 4170 | 7430 | 4770 | e3500 | 20300 | 15200 | 32000 | 24600 | 33800 | 5980 | 5810 | 3880 |
18 | 14000 | 6440 | 3930 | e3700 | 17900 | 22800 | 36400 | 27600 | 28700 | 6280 | 5330 | 3450 |
19 | 18500 | 7100 | 5620 | e4100 | 17100 | 24400 | 39000 | 26400 | 25600 | 6880 | 6480 | 3370 |
20 | 16900 | 6900 | 3280 | e4700 | 16700 | 22400 | e37000 | 23800 | e23500 | 6750 | 6130 | 3060 |
21 | 15000 | 4690 | 4580 | e7000 | 15900 | 21800 | 34100 | 22300 | 21200 | 6800 | 6130 | 3660 |
22 | 11500 | 3630 | e4300 | 11500 | 14300 | 19200 | 32600 | 24300 | 19100 | 7480 | 6640 | 4320 |
23 | 9910 | 5420 | 2960 | 18800 | 14500 | 17400 | 36800 | 23600 | 19300 | 7670 | 5120 | 3070 |
24 | 9200 | 4610 | 3000 | 34500 | 12100 | 17500 | 46700 | 23500 | 20900 | 9190 | 7870 | 4450 |
25 | 8300 | 4780 | 2870 | 49300 | 12200 | 16200 | 50200 | 21600 | 20000 | 7990 | 8020 | 2820 |
26 | 7110 | 3960 | 2960 | 48700 | 12400 | 14600 | 47100 | 20300 | 17400 | 8010 | 8710 | 3600 |
27 | 6520 | 4160 | 4830 | 48300 | 13100 | 13700 | 43800 | 17500 | 16300 | 7380 | 7590 | 4060 |
28 | 7690 | 4160 | 3210 | 47300 | 14500 | 13600 | 44300 | 16100 | 15800 | 6960 | 7450 | 8000 |
29 | 7110 | 3410 | 4240 | 48200 | --- | 13700 | 47000 | 15900 | 15400 | 5220 | 7810 | 11200 |
30 | 7960 | 5830 | e3200 | 46300 | --- | 10400 | 46900 | 14800 | 13300 | 5660 | 5410 | 8810 |
31 | 7150 | --- | e3800 | 41700 | --- | 10100 | --- | 13900 | --- | 6740 | 5520 | --- |
TOTAL | 237950 | 186920 | 168020 | 468800 | 650300 | 502700 | 769150 | 785800 | 636200 | 269850 | 186700 | 138680 |
MEAN | 7676 | 6231 | 5420 | 15120 | 23220 | 16220 | 25640 | 25350 | 21210 | 8705 | 6023 | 4623 |
MAX | 18500 | 13500 | 11500 | 49300 | 39400 | 24400 | 50200 | 46100 | 39700 | 14300 | 8710 | 11200 |
MIN | 3400 | 3170 | 2870 | 3000 | 12100 | 10100 | 6800 | 13900 | 13300 | 5220 | 4690 | 2820 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 9381 | 13300 | 15940 | 14650 | 17360 | 24670 | 23900 | 19310 | 17090 | 13000 | 9645 | 9336 |
MAX | 23990 | 31730 | 51370 | 36120 | 32640 | 55690 | 48890 | 34420 | 33600 | 28840 | 18640 | 26090 |
(WY) | 1994 | 1986 | 1983 | 1993 | 1997 | 1982 | 1983 | 1998 | 1996 | 1993 | 1993 | 1993 |
MIN | 5456 | 6231 | 4698 | 7102 | 7176 | 8202 | 10770 | 8544 | 7199 | 5669 | 3739 | 2687 |
(WY) | 1998 | 1999 | 1990 | 1996 | 1996 | 1996 | 1986 | 1989 | 1988 | 1991 | 1991 | 1991 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1982 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 6440280 | 5001070 | ||||
ANNUAL MEAN | 17640 | 13700 | 15620 | |||
HIGHEST ANNUAL MEAN | 24470 | 1993 | ||||
LOWEST ANNUAL MEAN | 10780 | 1992 | ||||
HIGHEST DAILY MEAN | 85900 | May 10 | 50200 | Apr 25 | 111000 | Feb 23 1997 |
LOWEST DAILY MEAN | 2870 | Dec 25 | 2820 | Sep 25 | 2040 | Sep 27 1991 |
ANNUAL SEVEN-DAY MINIMUM | 3420 | Dec 20 | 3090 | Jan 8 | 2140 | Sep 24 1991 |
INSTANTANEOUS PEAK FLOW | 55000 A | Jan 25 | 117000 B | Feb 23 1997 | ||
INSTANTANEOUS PEAK STAGE | 24.03 C | Jan 30 | 32.02 | Mar 7 1985 | ||
10 PERCENT EXCEEDS | 33300 | 31100 | 30000 | |||
50 PERCENT EXCEEDS | 15000 | 8810 | 11700 | |||
90 PERCENT EXCEEDS | 4740 | 3620 | 5990 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |