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 | 3740 | 5430 | 4370 | 3070 | 21900 | 10500 | 6990 | 24700 | 9790 | 7960 | 4360 | 4310 |
2 | 3820 | 4260 | 3700 | 3200 | 20100 | 9900 | 6020 | 22400 | 19900 | 9130 | 3860 | 3240 |
3 | 4830 | 3490 | 2860 | 1930 | 21200 | 10100 | 7100 | 19200 | 20400 | 9460 | 4650 | 3190 |
4 | 5500 | 2950 | 3330 | e2300 | 19100 | 11000 | 6460 | 17500 | 15600 | 9310 | 4180 | 4490 |
5 | 4240 | 3960 | 4000 | e2100 | 16800 | 11100 | 7500 | 15500 | 13400 | 8590 | 3520 | 3610 |
6 | 4710 | 3680 | 4470 | e2000 | 15500 | 11600 | 5820 | 14800 | 11200 | 8250 | 4670 | 3230 |
7 | 5800 | 2770 | 8510 | e2200 | 13900 | 12700 | 6360 | 15300 | 9880 | 7330 | 4220 | 4430 |
8 | 4410 | 3660 | 8760 | e2050 | 12900 | 12300 | 6800 | 13800 | 8810 | 7020 | 3940 | 2870 |
9 | 4290 | 3250 | 6510 | e1900 | 12800 | 11600 | 13500 | 12100 | 8620 | 6110 | 4570 | 3190 |
10 | 4520 | 6540 | 6530 | e2000 | 15200 | 11700 | 13300 | 11200 | 8880 | 5410 | 3020 | 2670 |
11 | 3570 | 8490 | 5760 | e2100 | 14700 | 11300 | 12800 | 10600 | 11700 | 6320 | 4170 | 2990 |
12 | 3570 | 7920 | 4520 | e2000 | 14400 | 10400 | 12200 | 14200 | 19800 | 5400 | 4990 | 2510 |
13 | 3070 | 5970 | 4930 | e1900 | 14300 | 9970 | 10700 | 21000 | 26200 | 4920 | 3830 | 3460 |
14 | 4320 | 6310 | 4070 | e1980 | 12900 | 10800 | 10500 | 21400 | 39500 | 5000 | 4540 | 2360 |
15 | 2720 | 5540 | 4400 | e2040 | 11400 | 9090 | 10400 | 16500 | 34500 | 4610 | 5050 | 2790 |
16 | 3870 | 4280 | 3740 | e2130 | 10700 | 9860 | 24100 | 15000 | 23600 | 4430 | 4310 | 2870 |
17 | 4550 | 4660 | 4090 | e2250 | 10900 | 15000 | 38600 | 16300 | 18500 | 4810 | 3590 | 1730 |
18 | 10700 | 4010 | 3980 | e2400 | 9910 | 19500 | 40200 | 16600 | 14200 | 5670 | 4140 | 3270 |
19 | 10400 | 3400 | 3610 | e2700 | 9460 | 17100 | 33500 | 13800 | 11500 | 5350 | 5260 | 2310 |
20 | 10200 | 3900 | 2520 | e3100 | 9360 | 14500 | 29500 | 12000 | 9860 | 5480 | 5050 | 2030 |
21 | 8000 | 3290 | 3800 | 4890 | 8680 | 12700 | 25800 | 10400 | 8760 | 5180 | 5560 | 2800 |
22 | 6300 | 3520 | 3570 | 14100 | 7650 | 12100 | 27300 | 13000 | 9110 | 6470 | 4880 | 3180 |
23 | 5040 | 3210 | 1980 | 26000 | 6770 | 10700 | 40000 | 13300 | 10300 | 6920 | 4890 | 1690 |
24 | 4330 | 2870 | 3460 | 44000 | 7390 | 10100 | 45600 | 12600 | 12200 | 6700 | 5490 | 3060 |
25 | 5000 | 2460 | 2590 | 46000 | 7120 | 9010 | 37600 | 10800 | 10100 | 6410 | 6620 | 1930 |
26 | 3860 | 4180 | 2270 | 41000 | 6730 | 8280 | 29800 | 9640 | 8630 | 6930 | 5850 | 2630 |
27 | 3550 | 3000 | 3350 | 36100 | 8270 | 7950 | 25400 | 8670 | 8800 | 4820 | 5610 | 2350 |
28 | 5440 | 3390 | 2010 | 38100 | 8100 | 7760 | 32500 | 7380 | 8110 | 5400 | 5200 | 8020 |
29 | 5090 | 2990 | 3700 | 35800 | --- | 7460 | 33500 | 7740 | 7290 | 4580 | 5170 | 7750 |
30 | 5070 | 3030 | 2270 | 28800 | --- | 7180 | 29600 | 6760 | 7680 | 4860 | 3880 | 5390 |
31 | 5130 | --- | 3380 | 25100 | --- | 6780 | --- | 6720 | --- | 4860 | 4110 | --- |
TOTAL | 159640 | 126410 | 127040 | 385240 | 348140 | 340040 | 629450 | 430910 | 426820 | 193690 | 143180 | 100350 |
MEAN | 5150 | 4214 | 4098 | 12430 | 12430 | 10970 | 20980 | 13900 | 14230 | 6248 | 4619 | 3345 |
MAX | 10700 | 8490 | 8760 | 46000 | 21900 | 19500 | 45600 | 24700 | 39500 | 9460 | 6620 | 8020 |
MIN | 2720 | 2460 | 1980 | 1900 | 6730 | 6780 | 5820 | 6720 | 7290 | 4430 | 3020 | 1690 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1920 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 7568 | 8604 | 9817 | 10180 | 11730 | 15240 | 16380 | 13820 | 11780 | 9250 | 7851 | 7750 |
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 | 3345 |
(WY) | 1975 | 1977 | 1944 | 1963 | 1963 | 1964 | 1986 | 1988 | 1988 | 1988 | 1939 | 1999 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1920 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 4495850 | 3410910 | ||||
ANNUAL MEAN | 12320 | 9345 | 10820 | |||
HIGHEST ANNUAL MEAN | 17850 | 1993 | ||||
LOWEST ANNUAL MEAN | 5583 | 1964 | ||||
HIGHEST DAILY MEAN | 72600 | May 9 | 46000 | Jan 25 | 89600 | Feb 22 1997 |
LOWEST DAILY MEAN | 1980 | Dec 23 | 1690 | Sep 23 | 1460 | Oct 16 1943 |
ANNUAL SEVEN-DAY MINIMUM | 2750 | Dec 22 | 1990 | Jan 9 | 1990 A | Jan 9 1999 |
INSTANTANEOUS PEAK FLOW | 47100 | Apr 23 | 95000 | Feb 22 1997 | ||
INSTANTANEOUS PEAK STAGE | 9.48 | Apr 23 | 16.85 | Feb 22 1997 | ||
INSTANTANEOUS LOW FLOW | 975 | B | ||||
10 PERCENT EXCEEDS | 22800 | 20000 | 19500 | |||
50 PERCENT EXCEEDS | 9090 | 6460 | 9000 | |||
90 PERCENT EXCEEDS | 3620 | 2780 | 4560 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |