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 | 3330 | 3590 | 3780 | e3900 | e3700 | 8290 | 12600 | 17100 | 9240 | 17700 | 4620 | 5380 |
2 | 3110 | 3430 | 3780 | 3750 | e4100 | 8280 | 15500 | 16600 | 8940 | 15400 | 4690 | 4950 |
3 | 3110 | 3260 | 3800 | 3420 | e4800 | 8500 | 16500 | 16200 | 8820 | 13800 | 4730 | 4980 |
4 | 3050 | 3250 | 3930 | 3850 | e5500 | 8530 | 16600 | 15800 | 8640 | 14100 | 4960 | 4580 |
5 | 3230 | 3030 | 3930 | 4440 | e5800 | 8630 | 16500 | 15300 | 7860 | 14700 | 5650 | 4320 |
6 | 3060 | 3180 | 3850 | 5400 | 5970 | 8460 | 16600 | 15300 | 8280 | 14300 | 5660 | 4210 |
7 | 2690 | 3580 | 3890 | 6950 | 5990 | 8200 | 16700 | 15400 | 7540 | 14000 | 8310 | 4190 |
8 | 3160 | 3470 | 3860 | e7700 | 5870 | 8410 | 17100 | 16700 | 7530 | 14200 | 9850 | 4140 |
9 | 2790 | 3840 | 3810 | e8200 | 5670 | 9200 | 18100 | 19300 | 7710 | 14000 | 9790 | 4160 |
10 | 2840 | 3950 | 3830 | e8500 | 5140 | 10500 | 20100 | 20700 | 8260 | 13100 | 8710 | 4110 |
11 | 2890 | 4010 | 3790 | e8000 | 5600 | 10600 | 20900 | 20900 | 9810 | 12100 | 8560 | 3980 |
12 | 2790 | 3890 | 3880 | e6400 | 6420 | 10000 | 20900 | 20200 | 10300 | 11800 | 8280 | 3810 |
13 | 2810 | 3750 | 3760 | e5100 | 7400 | 9140 | 20400 | 18700 | 10800 | 11200 | 7790 | 3860 |
14 | 2790 | 3600 | 3790 | e4300 | 8250 | 8800 | 20300 | 17100 | 11100 | 10200 | 7580 | 4020 |
15 | 2880 | 3250 | 3740 | e3700 | 8290 | 8620 | 20900 | 16600 | 11400 | 9990 | 6540 | 4860 |
16 | 2800 | 3710 | 3610 | e3300 | 8140 | 8210 | 21300 | 15900 | 11400 | 9050 | 6760 | 5170 |
17 | 2700 | 3570 | 3620 | e3600 | 7870 | 7320 | 21300 | 15300 | 10500 | 8720 | 6570 | 5270 |
18 | 2960 | 3670 | 3660 | e3900 | 7380 | 8920 | 22000 | 13900 | 11500 | 8000 | 6440 | 5580 |
19 | 2720 | 3230 | 3460 | e4400 | 7490 | 8830 | 22500 | 12900 | 11300 | 7990 | 6280 | 5730 |
20 | 2620 | 3370 | 3360 | e4300 | 7590 | 10100 | 22100 | 13000 | 13900 | 7650 | 5960 | 5780 |
21 | 2660 | 3390 | 3320 | e4100 | 7680 | 10400 | 21400 | 12200 | 12000 | 7760 | 5810 | 5540 |
22 | 2670 | 3410 | 3430 | e3950 | 7570 | 10700 | 21200 | 11700 | 12700 | 7540 | 5600 | 5280 |
23 | 2730 | 3310 | 3440 | e3850 | 7470 | 10500 | 21800 | 11500 | 11900 | 7160 | 5350 | 4750 |
24 | 2820 | 3470 | 3480 | e3750 | 7190 | 10100 | 21900 | 10500 | 11100 | 7450 | 4810 | 4510 |
25 | 3140 | 3730 | 3620 | e3650 | 7310 | 9790 | 21400 | 10800 | 11100 | 6830 | 5210 | 4580 |
26 | 3400 | 3510 | 3600 | e3600 | 7290 | 9400 | 20600 | 9900 | 10900 | 6670 | 5970 | 4450 |
27 | 3400 | 3580 | 3540 | e3600 | 7520 | 8890 | 19700 | 9920 | 14000 | 6680 | 5900 | 4280 |
28 | 3470 | 3680 | e3450 | e3550 | 8120 | 9140 | 19400 | 9750 | 18300 | 6700 | 5730 | 4300 |
29 | 3500 | 3600 | e3400 | e3550 | --- | 9150 | 18900 | 9510 | 19100 | 5680 | 5850 | 4350 |
30 | 3710 | 3650 | e3450 | e3550 | --- | 9070 | 18200 | 9720 | 19200 | 5760 | 5860 | 4480 |
31 | 3600 | --- | e3600 | e3550 | --- | 9620 | --- | 9350 | --- | 5020 | 5530 | --- |
TOTAL | 93430 | 105960 | 113460 | 143810 | 187120 | 284300 | 583400 | 447750 | 335130 | 315250 | 199350 | 139600 |
MEAN | 3014 | 3532 | 3660 | 4639 | 6683 | 9171 | 19450 | 14440 | 11170 | 10170 | 6431 | 4653 |
MAX | 3710 | 4010 | 3930 | 8500 | 8290 | 10700 | 22500 | 20900 | 19200 | 17700 | 9850 | 5780 |
MIN | 2620 | 3030 | 3320 | 3300 | 3700 | 7320 | 12600 | 9350 | 7530 | 5020 | 4620 | 3810 |
CFSM | .32 | .37 | .38 | .49 | .70 | .96 | 2.04 | 1.51 | 1.17 | 1.06 | .67 | .49 |
IN. | .36 | .41 | .44 | .56 | .73 | 1.11 | 2.27 | 1.74 | 1.31 | 1.23 | .78 | .54 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 4449 | 5141 | 4999 | 5267 | 6246 | 10900 | 10840 | 8354 | 6978 | 5741 | 4351 | 4178 |
MAX | 17110 | 16700 | 14780 | 15820 | 14030 | 22500 | 26950 | 26030 | 22780 | 24000 | 12420 | 13470 |
(WY) | 1987 | 1986 | 1983 | 1973 | 1997 | 1948 | 1993 | 1973 | 1996 | 1993 | 1993 | 1972 |
MIN | 1381 | 1626 | 1519 | 1172 | 1554 | 2803 | 3877 | 2032 | 2052 | 1902 | 1349 | 1084 |
(WY) | 1957 | 1950 | 1959 | 1940 | 1940 | 1954 | 1940 | 1958 | 1977 | 1965 | 1958 | 1958 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 2655240 | 2948560 | ||||
ANNUAL MEAN | 7275 | 8078 | 6452 | |||
HIGHEST ANNUAL MEAN | 14560 | 1993 | ||||
LOWEST ANNUAL MEAN | 2587 | 1964 | ||||
HIGHEST DAILY MEAN | 40000 A | Feb 23 | 22500 | Apr 19 | 44700 | Mar 22 1948 |
LOWEST DAILY MEAN | 2620 | Oct 20 | 2620 | Oct 20 | 834 | Jan 3 1940 |
ANNUAL SEVEN-DAY MINIMUM | 2720 | Oct 17 | 2720 | Oct 17 | 977 | Jan 1 1940 |
INSTANTANEOUS PEAK FLOW | 22600 | Apr 19 | 46500 B | Mar 26 1993 | ||
INSTANTANEOUS PEAK STAGE | 13.03 | Apr 19 | 18.88 C | Feb 23 1997 | ||
INSTANTANEOUS LOW FLOW | 2560 | Oct 17 | ||||
ANNUAL RUNOFF (CFSM) | .76 | .85 | .68 | |||
ANNUAL RUNOFF (INCHES) | 10.34 | 11.49 | 9.18 | |||
10 PERCENT EXCEEDS | 11200 | 16600 | 12800 | |||
50 PERCENT EXCEEDS | 5700 | 6440 | 4890 | |||
90 PERCENT EXCEEDS | 3320 | 3380 | 2000 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |