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 | 4310 | 5540 | 6920 | 6160 | 11200 | 10500 | 26200 | 15200 | 6260 | 12500 | 4850 | 5220 |
2 | 3940 | 4400 | 6590 | 7730 | 14000 | 9750 | 27200 | 16700 | 6670 | 12200 | 4080 | 4120 |
3 | 4260 | 4690 | 6450 | 7210 | 15600 | 9210 | 24100 | 17200 | 6790 | 11200 | 4830 | 4710 |
4 | 4490 | 3560 | 6400 | 12700 | 14400 | 9840 | 21700 | 16000 | 7240 | 13300 | 8340 | 4310 |
5 | 4990 | 4520 | 6310 | 20300 | 13700 | 8720 | 19300 | 17900 | 5190 | 14200 | 21600 | 3950 |
6 | 3990 | 5170 | 6280 | 25600 | 12100 | 8470 | 17100 | 22900 | 6740 | 14100 | 19800 | 4310 |
7 | 4190 | 4210 | 6020 | 28500 | 10700 | 8450 | 16100 | 41800 | 5810 | 15300 | 14500 | 8180 |
8 | 4480 | 4880 | 5650 | 30200 | 10700 | 11100 | 17800 | 69500 | 5580 | 22000 | 14800 | 9550 |
9 | 5060 | 4370 | 5300 | 37000 | 10200 | 19700 | 21400 | 72600 | 7260 | 21600 | 13800 | 7170 |
10 | 4830 | 4220 | 6370 | 35800 | 9810 | 26800 | 21800 | 56700 | 9530 | 21800 | 12100 | 5760 |
11 | 4210 | 4630 | 7360 | 31200 | 12900 | 27300 | 21100 | 45200 | 16200 | 20400 | 10700 | 4340 |
12 | 5100 | 4370 | 7230 | 26900 | 22000 | 25100 | 20400 | 37400 | 36800 | 17800 | 9720 | 4170 |
13 | 4260 | 3300 | 6220 | 22800 | 22100 | 22400 | 18100 | 31800 | 39800 | 15000 | 8510 | 4480 |
14 | 4410 | 4380 | 6640 | 19100 | 17400 | 21000 | 17700 | 27000 | 29900 | 12000 | 7510 | 4380 |
15 | 3450 | 3740 | 4980 | 17500 | 16000 | 19400 | 17600 | 21300 | 24100 | 9810 | 6580 | 4830 |
16 | 3910 | 5430 | 5470 | 15800 | 14100 | 17700 | 17400 | 17700 | 22100 | 8550 | 6960 | 5780 |
17 | 3640 | 4120 | 4590 | 14200 | 14100 | 19400 | 18400 | 15700 | 20000 | 8060 | 5950 | 4660 |
18 | 3310 | 3630 | 5700 | 13300 | 18800 | 40800 | 18300 | 12600 | 18400 | 6940 | 5540 | 4310 |
19 | 3690 | 4470 | 5320 | 12400 | 19800 | 55300 | 18500 | 12200 | 19100 | 7370 | 5710 | 3620 |
20 | 2960 | 4140 | 4820 | 11400 | 17900 | 53200 | 16500 | 10500 | 18900 | 7350 | 4740 | 4180 |
21 | 3500 | 4270 | 6080 | 11000 | 16200 | 46100 | 19200 | 10400 | 18000 | 6540 | 5240 | 4570 |
22 | 3080 | 3830 | 4890 | 10500 | 15200 | 44300 | 21200 | 10300 | 15100 | 6470 | 5350 | 3530 |
23 | 3720 | 4400 | 7050 | 9870 | 13100 | 40700 | 19200 | 9820 | 13300 | 7590 | 5210 | 4400 |
24 | 3870 | 3970 | 6320 | 9550 | 12600 | 35800 | 17600 | 9560 | 11400 | 8150 | 6750 | 2730 |
25 | 2940 | 4230 | 9080 | 9000 | 12500 | 31800 | 16800 | 10700 | 9950 | 7670 | 7790 | 3810 |
26 | 4420 | 4430 | 10100 | 8860 | 11000 | 27800 | 16300 | 9090 | 10800 | 7680 | 7260 | 3450 |
27 | 8110 | 4280 | 9400 | 8370 | 11000 | 24000 | 15300 | 8750 | 13600 | 6320 | 7380 | 3670 |
28 | 7010 | 6130 | 8910 | 8040 | 10700 | 22100 | 14000 | 8570 | 11500 | 6610 | 6360 | 3070 |
29 | 6360 | 6630 | 8430 | 8970 | --- | 20900 | 14000 | 8350 | 11100 | 6050 | 5640 | 4450 |
30 | 5510 | 6540 | 8180 | 9450 | --- | 21300 | 14200 | 7840 | 10800 | 4360 | 5440 | 4000 |
31 | 4670 | --- | 7680 | 9730 | --- | 22800 | --- | 6790 | --- | 5270 | 4640 | --- |
TOTAL | 136670 | 136480 | 206740 | 499140 | 399810 | 761740 | 564500 | 678070 | 437920 | 344190 | 257680 | 139710 |
MEAN | 4409 | 4549 | 6669 | 16100 | 14280 | 24570 | 18820 | 21870 | 14600 | 11100 | 8312 | 4657 |
MAX | 8110 | 6630 | 10100 | 37000 | 22100 | 55300 | 27200 | 72600 | 39800 | 22000 | 21600 | 9550 |
MIN | 2940 | 3300 | 4590 | 6160 | 9810 | 8450 | 14000 | 6790 | 5190 | 4360 | 4080 | 2730 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1920 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 7599 | 8659 | 9889 | 10160 | 11720 | 15290 | 16320 | 13820 | 11750 | 9288 | 7892 | 7806 |
MAX | 21050 | 24180 | 30100 | 28430 | 25970 | 41290 | 33180 | 35180 | 25940 | 21020 | 19220 | 22770 |
(WY) | 1927 | 1986 | 1983 | 1993 | 1997 | 1979 | 1922 | 1943 | 1993 | 1957 | 1924 | 1993 |
MIN | 3518 | 3720 | 3739 | 3202 | 3264 | 5153 | 6516 | 5649 | 4346 | 4687 | 4242 | 3522 |
(WY) | 1975 | 1977 | 1944 | 1963 | 1963 | 1964 | 1986 | 1988 | 1988 | 1988 | 1939 | 1976 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1920 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 4048000 | 4562650 | ||||
ANNUAL MEAN | 11090 | 12500 | 10840 | |||
HIGHEST ANNUAL MEAN | 17850 | 1993 | ||||
LOWEST ANNUAL MEAN | 5583 | 1964 | ||||
HIGHEST DAILY MEAN | 89600 | Feb 22 | 72600 | May 9 | 89600 | Feb 22 1997 |
LOWEST DAILY MEAN | 2940 | Oct 25 | 2730 | Sep 24 | 1460 | Oct 16 1943 |
ANNUAL SEVEN-DAY MINIMUM | 3390 | Oct 19 | 3390 | Oct 19 | 2570 | Jan 26 1940 |
INSTANTANEOUS PEAK FLOW | 77200 | May 8 | 95000 | Feb 22 1997 | ||
INSTANTANEOUS PEAK STAGE | 14.22 | May 8 | 16.85 | Feb 22 1997 | ||
INSTANTANEOUS LOW FLOW | 864 | Jul 30 | ||||
10 PERCENT EXCEEDS | 19300 | 22800 | 19500 | |||
50 PERCENT EXCEEDS | 8590 | 9080 | 9020 | |||
90 PERCENT EXCEEDS | 4400 | 4210 | 4580 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |