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 | 4780 | 7060 | 6020 | e4200 | 43200 | 19100 | 10300 | 44600 | 21300 | 22200 | 6800 | 6810 |
2 | e4600 | 7920 | 5210 | e3900 | 42100 | 19000 | 12700 | 43400 | 21500 | 20400 | 8290 | 7170 |
3 | e4500 | 9810 | 5700 | e3800 | 39600 | 19400 | 11500 | 41400 | 22100 | 18900 | 7270 | 6950 |
4 | e5000 | 6890 | 7340 | e3700 | 40600 | 18500 | 12000 | 39400 | 23200 | 19100 | e7200 | 6420 |
5 | e5000 | 5360 | 6700 | e3700 | 38100 | 18600 | 12200 | 37200 | 23800 | 19000 | 7200 | 6460 |
6 | 5370 | 5430 | 7310 | e3700 | 37700 | 19500 | 9800 | 37100 | 23000 | 19200 | 7000 | 5930 |
7 | 5820 | 5380 | 10100 | e3600 | 36700 | 18600 | 11500 | 35600 | 22600 | 19200 | 7020 | 6060 |
8 | 6570 | 5240 | 9210 | e3800 | 34000 | 18500 | 11400 | 35700 | 22600 | 13900 | 6880 | 6900 |
9 | 7490 | 5140 | 9910 | e3600 | 33300 | 19100 | 13300 | 33800 | 21300 | 8710 | 7070 | 6460 |
10 | 7270 | 6470 | 11100 | e3400 | 31600 | 19600 | 14500 | 32100 | 20100 | 8220 | 7010 | 4360 |
11 | 6240 | 7020 | 11600 | e3300 | 29000 | 19900 | 15800 | 30500 | 18600 | 8710 | 6970 | e4100 |
12 | 6340 | 11200 | 10600 | e3900 | 30600 | 19700 | 17000 | 29900 | 18800 | 9870 | 6670 | e4400 |
13 | 5740 | 13200 | 10600 | e3700 | 31300 | 19400 | 20700 | 33000 | 21800 | 9920 | 6820 | 4350 |
14 | e5900 | 12600 | 9540 | e3600 | 29100 | 19500 | 22100 | 34800 | 25900 | 7850 | 6850 | 5020 |
15 | e5200 | 12500 | 6240 | e3800 | 28100 | 15000 | 21500 | 34400 | 30600 | 7440 | 6730 | 3870 |
16 | e5400 | 9540 | 7200 | e4000 | 29100 | 8530 | 21700 | 33200 | 36300 | 7240 | 6630 | 4640 |
17 | 5140 | 10400 | 7360 | e4100 | 28200 | 10400 | 23600 | 34400 | 39400 | 7420 | 6890 | 3890 |
18 | 6190 | 9740 | 5850 | e4300 | 26700 | 20000 | 28300 | 36900 | 36700 | 7510 | 6750 | 4160 |
19 | 12000 | 8920 | 6800 | e4700 | 26200 | 24800 | 33200 | 37300 | 35200 | 7720 | 6960 | 3360 |
20 | 15000 | 10100 | 6860 | e5200 | 25600 | 25100 | 36400 | 34100 | 33700 | 9250 | 6890 | 3700 |
21 | 16100 | 7460 | 6770 | e5800 | 24600 | 25200 | 37800 | 32700 | 32000 | 7650 | e6800 | 3530 |
22 | 16100 | 5350 | 6750 | 9920 | 23100 | 24700 | 37400 | 32800 | 30100 | 7310 | e7000 | e3900 |
23 | 15500 | 5990 | 6760 | 17200 | 22600 | 24000 | 38100 | 31800 | 28000 | 8170 | e6900 | e4200 |
24 | 14300 | 7080 | 7280 | 18200 | 21000 | 23400 | 39500 | 31700 | 28200 | 8770 | e8000 | e3000 |
25 | 11500 | 6130 | 6470 | 22900 | 21200 | 22400 | 42600 | 30600 | 27600 | 8440 | e7700 | e4400 |
26 | 9640 | 6320 | 6250 | 32200 | 19900 | 21300 | 44900 | 29700 | 27100 | 8830 | 7500 | 3180 |
27 | 7870 | 6290 | 5860 | 39400 | 19400 | 20100 | 45400 | 28300 | 25500 | 9290 | 7610 | 3090 |
28 | 8140 | 6130 | 5380 | 41900 | 19300 | 19100 | 46400 | 26300 | 23700 | 8070 | 7670 | 4640 |
29 | 7270 | 5900 | 5750 | 43600 | --- | 16100 | 45800 | 25400 | 23800 | 7420 | 7790 | 9790 |
30 | 7060 | 5670 | 5180 | 44400 | --- | 10000 | 45100 | 23500 | 23000 | 6940 | 7920 | 8250 |
31 | 7130 | --- | e4000 | 44000 | --- | 8970 | --- | 21300 | --- | e6600 | 6850 | --- |
TOTAL | 250160 | 232240 | 227700 | 397520 | 831900 | 587500 | 782500 | 1032900 | 787500 | 339250 | 221640 | 152990 |
MEAN | 8070 | 7741 | 7345 | 12820 | 29710 | 18950 | 26080 | 33320 | 26250 | 10940 | 7150 | 5100 |
MAX | 16100 | 13200 | 11600 | 44400 | 43200 | 25200 | 46400 | 44600 | 39400 | 22200 | 8290 | 9790 |
MIN | 4500 | 5140 | 4000 | 3300 | 19300 | 8530 | 9800 | 21300 | 18600 | 6600 | 6630 | 3000 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 9510 | 11200 | 13580 | 14510 | 17010 | 23720 | 25670 | 23540 | 18900 | 13630 | 9815 | 9130 |
MAX | 33180 | 37100 | 52390 | 44480 | 40470 | 56190 | 55630 | 52180 | 46230 | 46130 | 28440 | 34620 |
(WY) | 1987 | 1986 | 1983 | 1993 | 1974 | 1979 | 1983 | 1943 | 1974 | 1993 | 1993 | 1993 |
MIN | 3362 | 4428 | 4598 | 3747 | 3421 | 7000 | 7928 | 7822 | 5579 | 4474 | 5038 | 4027 |
(WY) | 1964 | 1977 | 1944 | 1963 | 1963 | 1964 | 1940 | 1989 | 1977 | 1965 | 1944 | 1963 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1940 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 7141130 | 5843800 | ||||
ANNUAL MEAN | 19560 | 16010 | 15840 | |||
HIGHEST ANNUAL MEAN | 32200 | 1993 | ||||
LOWEST ANNUAL MEAN | 6820 | 1964 | ||||
HIGHEST DAILY MEAN | 63800 | May 11 | 46400 | Apr 28 | 86700 | Dec 7 1982 |
LOWEST DAILY MEAN | 4000 A | Dec 31 | 3000 B | Sep 24 | 600 C | Oct 26 1997 |
ANNUAL SEVEN-DAY MINIMUM | 4710 | Sep 29 | 3590 | Jan 5 | 2060 | Oct 8 1964 |
INSTANTANEOUS PEAK FLOW | 47000 D | Apr 28 | 88800 E | Dec 7 1982 | ||
INSTANTANEOUS PEAK STAGE | 18.19 F | Apr 30 | 26.02 | May 25 1943 | ||
10 PERCENT EXCEEDS | 35200 | 35400 | 32600 | |||
50 PERCENT EXCEEDS | 19000 | 9920 | 11000 | |||
90 PERCENT EXCEEDS | 5810 | 4560 | 5310 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |