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 | 147 | 65 | 97 | e200 | 7870 | 2910 | 1980 | 3550 | 878 | e1000 | 478 | 107 |
2 | 143 | 65 | 154 | e400 | 7830 | 2980 | 1800 | 3460 | 1050 | e1100 | 485 | 106 |
3 | 141 | 79 | 173 | e1200 | 7790 | 2910 | 2310 | 3430 | 1170 | e1100 | 503 | 95 |
4 | 137 | e350 | 164 | e1500 | 7830 | 2710 | 4710 | 3370 | 1170 | e1050 | 503 | 91 |
5 | 132 | e800 | 155 | e1700 | 7690 | 2510 | 5940 | 3710 | 1140 | e1000 | 494 | 86 |
6 | 166 | 1400 | 127 | e1500 | 7060 | 2840 | 7740 | 4190 | 1060 | e960 | 415 | 81 |
7 | e300 | 1520 | 211 | e1200 | 6950 | 3420 | 9870 | 4470 | 1030 | e910 | e350 | 77 |
8 | e600 | 1420 | 290 | e950 | 7420 | 3700 | 10900 | 4480 | e1000 | e860 | e310 | 73 |
9 | 1430 | 1250 | 505 | e700 | 7740 | 4210 | 11000 | 4500 | e970 | e800 | e280 | 71 |
10 | 1460 | 1090 | e630 | e540 | 8640 | 4620 | 10500 | 4430 | e930 | e740 | e270 | 69 |
11 | 1420 | 930 | e700 | e450 | 9480 | 4790 | 9690 | 4130 | e910 | e820 | e290 | 67 |
12 | 1230 | 1100 | 652 | e400 | 9550 | 4830 | 8580 | 3940 | e880 | e920 | e330 | 66 |
13 | 1040 | 1240 | 379 | e550 | 8880 | 4710 | 7730 | 3770 | e850 | e920 | e340 | 66 |
14 | 725 | 1250 | 183 | e1200 | 8150 | 4360 | 6830 | 3550 | e820 | e900 | e320 | 62 |
15 | 518 | 1220 | 135 | e1800 | 7410 | 4020 | 6600 | 3260 | e790 | 818 | e285 | 58 |
16 | 167 | 1110 | 121 | e2000 | 6620 | 3920 | 6810 | 2900 | e770 | 763 | 257 | 56 |
17 | 115 | 914 | 114 | e2200 | 5880 | 4600 | 6640 | 2520 | e750 | 724 | 229 | 55 |
18 | 135 | 728 | 109 | e2400 | 5190 | 5100 | 6080 | 2350 | e730 | 673 | 207 | 53 |
19 | 177 | 577 | 108 | e2800 | 4580 | 5320 | 5370 | 2280 | e710 | 641 | 191 | 54 |
20 | 314 | 524 | 105 | e3300 | 4050 | 5150 | 4650 | 2190 | e700 | 604 | 183 | 53 |
21 | 579 | 453 | 225 | e4500 | 3630 | 4780 | 4170 | 1950 | e690 | 601 | 171 | 52 |
22 | 1010 | 585 | 703 | 5600 | 3240 | 4420 | 3810 | 1650 | e680 | 551 | 165 | 48 |
23 | 1080 | 661 | 1170 | 8200 | 2910 | 4120 | 3580 | 1560 | e670 | 498 | 158 | 46 |
24 | 989 | 535 | 1190 | 10700 | 2640 | 3880 | 3380 | 1460 | e660 | 461 | 148 | 48 |
25 | 789 | 329 | 931 | 14100 | 2360 | 3720 | 3150 | 1300 | e660 | 418 | 138 | 48 |
26 | 552 | 256 | e600 | 16100 | 2160 | 3620 | 2970 | 1140 | e650 | 364 | 130 | 45 |
27 | 480 | 235 | e500 | 14800 | 2090 | 3360 | 2870 | 1020 | e660 | 379 | 122 | 40 |
28 | 306 | 142 | e400 | 12700 | 2700 | 3050 | 2880 | 879 | e720 | 405 | 123 | 37 |
29 | 121 | 110 | e320 | 11000 | --- | 2750 | 3130 | 814 | e820 | 424 | 122 | 44 |
30 | 79 | 94 | e270 | 9650 | --- | 2440 | 3400 | 855 | e920 | 476 | 116 | 42 |
31 | 69 | --- | e220 | 8410 | --- | 2180 | --- | 863 | --- | 498 | 107 | --- |
TOTAL | 16551 | 21032 | 11641 | 142750 | 168340 | 117930 | 169070 | 83971 | 25438 | 22378 | 8220 | 1896 |
MEAN | 534 | 701 | 376 | 4605 | 6012 | 3804 | 5636 | 2709 | 848 | 722 | 265 | 63.2 |
MAX | 1460 | 1520 | 1190 | 16100 | 9550 | 5320 | 11000 | 4500 | 1170 | 1100 | 503 | 107 |
MIN | 69 | 65 | 97 | 200 | 2090 | 2180 | 1800 | 814 | 650 | 364 | 107 | 37 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 473 | 1533 | 2142 | 2608 | 2961 | 3835 | 4110 | 3591 | 2003 | 959 | 504 | 424 |
MAX | 2700 | 10110 | 10030 | 9489 | 10600 | 12290 | 10510 | 16410 | 6972 | 3393 | 1281 | 2821 |
(WY) | 1994 | 1994 | 1983 | 1991 | 1982 | 1979 | 1979 | 1983 | 1995 | 1998 | 1993 | 1993 |
MIN | 75.9 | 44.2 | 74.3 | 74.7 | 377 | 237 | 289 | 298 | 119 | 131 | 72.1 | 43.8 |
(WY) | 1996 | 1972 | 1990 | 1977 | 1972 | 1981 | 1981 | 1987 | 1972 | 1971 | 1991 | 1971 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1971 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 814851 | 789217 | ||||
ANNUAL MEAN | 2232 | 2162 | 2090 | |||
HIGHEST ANNUAL MEAN | 3864 | 1983 | ||||
LOWEST ANNUAL MEAN | 741 | 1972 | ||||
HIGHEST DAILY MEAN | 11900 | Apr 20 | 16100 | Jan 26 | 33500 | May 2 1996 |
LOWEST DAILY MEAN | 65 | Nov 1,2 | 37 | Sep 28 | -2600 A | Aug 6 1993 |
ANNUAL SEVEN-DAY MINIMUM | 112 | Oct 28 | 43 | Sep 24 | -1340 | Aug 1 1993 |
INSTANTANEOUS PEAK FLOW | 16400 B | Jan 26 | 33800 C | May 2 1996 | ||
INSTANTANEOUS PEAK STAGE | 28.83 D | Jan 27 | 36.88 | May 5 1983 | ||
INSTANTANEOUS LOW FLOW | 36 | Sep 28 | ||||
10 PERCENT EXCEEDS | 5960 | 6610 | 5620 | |||
50 PERCENT EXCEEDS | 1290 | 910 | 891 | |||
90 PERCENT EXCEEDS | 181 | 106 | 100 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |