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 | 158 | 109 | 107 | 199 | 2000 | 5570 | 15900 | 7710 | 3800 | 6720 | 7030 | 3770 |
2 | 150 | 125 | 114 | 193 | 1740 | 4900 | 15600 | 7460 | 3500 | 6620 | 5930 | 3790 |
3 | 123 | 108 | 132 | 184 | 1400 | 4000 | 14700 | 7070 | 3050 | 5350 | 4800 | 3640 |
4 | 108 | 96 | 185 | 182 | 1020 | 3300 | 13600 | 6890 | 3760 | 4610 | 4350 | 3490 |
5 | e104 | 95 | 187 | 196 | 1320 | 2810 | 12900 | 7250 | 7880 | 4530 | 6270 | 3210 |
6 | e100 | 99 | 279 | 478 | 1350 | 2560 | 12100 | 7360 | 9030 | 4330 | 8450 | 3050 |
7 | 96 | 117 | 301 | 1570 | 1340 | 2430 | 10600 | 7380 | 8170 | 4310 | 9030 | 2820 |
8 | 96 | 124 | 295 | 3420 | 1330 | 2920 | 9690 | 7500 | 5790 | 7940 | 9280 | 2540 |
9 | 97 | 122 | 293 | 5980 | 1320 | 5630 | 9580 | 7080 | 4740 | 9050 | 9140 | 2320 |
10 | 98 | 123 | 297 | 6960 | 1310 | 6950 | 10000 | 6310 | 5380 | 8620 | 7860 | 2140 |
11 | 94 | 116 | 299 | 6420 | 1320 | 7170 | 11400 | 5390 | 5760 | 6880 | 5650 | 1950 |
12 | 86 | 115 | 298 | 5290 | 1320 | 6750 | 12700 | 4840 | 5450 | 5440 | 5480 | 1760 |
13 | 84 | 110 | 299 | 4700 | 1330 | 5620 | 12900 | 4360 | 6240 | 5330 | 5780 | 1500 |
14 | 86 | 106 | 295 | 4510 | 1220 | 4810 | 12800 | 3940 | 7830 | 4610 | 5020 | 1230 |
15 | 88 | 103 | 288 | 4510 | 1100 | 4270 | 12900 | 3720 | 9190 | 3850 | 4660 | 1070 |
16 | 89 | 99 | 310 | 4560 | 959 | 4300 | 14800 | 3470 | 9110 | 3630 | 4480 | 960 |
17 | 88 | 93 | 558 | 4580 | 1250 | 4640 | 16400 | 3030 | 8500 | 3520 | 4390 | 882 |
18 | 87 | 89 | 618 | 4520 | 4450 | 6850 | 17200 | 2650 | 7620 | 3480 | 4360 | 698 |
19 | 87 | 87 | 584 | 4400 | 6490 | 9030 | 16300 | 2430 | 7560 | 3540 | 4710 | 517 |
20 | 87 | 88 | 513 | 4300 | 6890 | 11000 | 15400 | 2260 | 7930 | 3730 | 4790 | 627 |
21 | 85 | 88 | 489 | 4230 | 5920 | 13500 | 14000 | 2150 | 9760 | 3940 | 4450 | 648 |
22 | 84 | 86 | 498 | 4140 | 4670 | 14900 | 11200 | 2800 | 11800 | 4180 | 4390 | 653 |
23 | 84 | 86 | 524 | 3940 | 4010 | 15200 | 9590 | 6000 | 12900 | 4170 | 4330 | 606 |
24 | 95 | 87 | 560 | 3690 | 3690 | 15300 | 8960 | 7990 | 11200 | 4790 | 4250 | 400 |
25 | 106 | 88 | 781 | 3580 | 3490 | 15600 | 8670 | 8170 | 8330 | 4920 | 4280 | 368 |
26 | 116 | 86 | 871 | 3530 | 3390 | 15400 | 8440 | 8040 | 6200 | 5000 | 4290 | 487 |
27 | 109 | 88 | 815 | 3290 | 3710 | 14600 | 8210 | 8220 | 5180 | 4430 | 4260 | 1280 |
28 | 110 | 93 | 500 | 2960 | 4980 | 14400 | 8000 | 6270 | 4020 | 4170 | 4220 | 1560 |
29 | 102 | 94 | 346 | 2590 | --- | 14600 | 8000 | 4690 | 3650 | 4210 | 4020 | 1380 |
30 | 102 | 98 | 276 | 2220 | --- | 15200 | 7590 | 4140 | 5560 | 4530 | 3740 | 1170 |
31 | 99 | --- | 236 | 2060 | --- | 15700 | --- | 3920 | --- | 6640 | 3630 | --- |
TOTAL | 3098 | 3018 | 12148 | 103382 | 74319 | 269910 | 360130 | 170490 | 208890 | 157070 | 167320 | 50516 |
MEAN | 99.9 | 101 | 392 | 3335 | 2654 | 8707 | 12000 | 5500 | 6963 | 5067 | 5397 | 1684 |
MAX | 158 | 125 | 871 | 6960 | 6890 | 15700 | 17200 | 8220 | 12900 | 9050 | 9280 | 3790 |
MIN | 84 | 86 | 107 | 182 | 959 | 2430 | 7590 | 2150 | 3050 | 3480 | 3630 | 368 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 987 | 1995 | 4860 | 5155 | 6106 | 6838 | 6578 | 4603 | 3266 | 2464 | 1590 | 1038 |
MAX | 5021 | 12600 | 17460 | 12050 | 18850 | 16930 | 16750 | 15470 | 7875 | 6010 | 5397 | 5280 |
(WY) | 1994 | 1994 | 1983 | 1991 | 1982 | 1979 | 1979 | 1996 | 1990 | 1973 | 1998 | 1993 |
MIN | 99.9 | 90.2 | 89.4 | 74.2 | 516 | 891 | 487 | 211 | 102 | 104 | 161 | 102 |
(WY) | 1998 | 1972 | 1977 | 1977 | 1978 | 1981 | 1986 | 1976 | 1988 | 1976 | 1988 | 1976 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1970 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 887885 | 1580291 | ||||
ANNUAL MEAN | 2433 | 4330 | 3779 | |||
HIGHEST ANNUAL MEAN | 6824 | 1973 | ||||
LOWEST ANNUAL MEAN | 1194 | 1992 | ||||
HIGHEST DAILY MEAN | 17500 | Mar 4 | 17200 | Apr 18 | 48700 | May 19 1995 |
LOWEST DAILY MEAN | 84 | A | 84 | A | 56 | Sep 12 1970 |
ANNUAL SEVEN-DAY MINIMUM | 86 | Oct 17 | 86 | Oct 17 | 63 | Sep 7 1970 |
INSTANTANEOUS PEAK FLOW | 17400 | Apr 18 | 50300 | May 19 1995 | ||
INSTANTANEOUS PEAK STAGE | 21.93 | Apr 18 | 25.79 | May 19 1995 | ||
INSTANTANEOUS LOW FLOW | 81 | Oct 13 | 54 | B | ||
10 PERCENT EXCEEDS | 9310 | 9720 | 10300 | |||
50 PERCENT EXCEEDS | 374 | 3790 | 2000 | |||
90 PERCENT EXCEEDS | 99 | 99 | 139 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |