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 | 6040 | 7030 | 8710 | 9860 | 167000 | 43900 | 23600 | 60200 | 17300 | 18800 | 6010 | 4040 |
2 | 5830 | 7350 | 8540 | 9870 | 153000 | 48800 | 22500 | 56200 | 20900 | 32000 | 5760 | 3960 |
3 | 5690 | 7690 | 8420 | e9000 | 137000 | 51000 | 23000 | 51900 | 35900 | 36500 | 5580 | 3800 |
4 | 5610 | 9150 | 8260 | e8500 | 122000 | 52800 | 32300 | 47500 | 44100 | 28000 | 5430 | 3730 |
5 | 5540 | 9980 | 8210 | e8400 | 110000 | 54500 | 35900 | 42000 | 50900 | 20800 | 5210 | 3620 |
6 | 5760 | 9380 | 8080 | e8300 | 98100 | 59100 | 38400 | 38400 | 53200 | 18100 | 5120 | 3550 |
7 | 10600 | 8890 | 8420 | e8200 | 91900 | 64500 | 39000 | 39000 | 52800 | 16500 | 5020 | 3460 |
8 | 15700 | 8560 | 8820 | e8100 | 92900 | 66400 | 35200 | 36400 | 49800 | 15500 | 4990 | 3430 |
9 | 13800 | 8220 | 9190 | e8100 | 97200 | 69000 | 32300 | 32500 | 44700 | 14400 | 4830 | 3320 |
10 | 11800 | 8400 | 9160 | e8050 | 102000 | 73200 | 32600 | 29400 | 37100 | 14800 | 4780 | 3220 |
11 | 11500 | 9880 | 8850 | e8000 | 110000 | 76200 | 32900 | 26700 | 28400 | 15500 | 4740 | 3220 |
12 | 12000 | 13300 | 8580 | e8400 | 119000 | 76600 | 29900 | 24300 | 23400 | 13000 | 4630 | 3150 |
13 | 11700 | 14700 | 8510 | e10000 | 124000 | 74700 | 27900 | 22700 | 21100 | 10900 | 4680 | 3060 |
14 | 10800 | 14600 | 8300 | e17000 | 125000 | 70300 | 27400 | 22500 | 21900 | 9390 | 5080 | 3010 |
15 | 9970 | 15100 | 8070 | e20000 | 123000 | 63800 | 27600 | 23400 | 23400 | 8520 | 4800 | 2970 |
16 | 9120 | 14500 | 7850 | e22000 | 117000 | 57200 | 27000 | 24100 | 22500 | 8030 | 4550 | 2880 |
17 | 8350 | 13300 | 7700 | e25000 | 106000 | 53900 | 26600 | 25100 | 21200 | 7680 | 4810 | 2910 |
18 | 7910 | 12200 | 7650 | e30000 | 92800 | 50400 | 31200 | 25200 | 19600 | 7370 | 5210 | 3010 |
19 | 7740 | 11100 | 7370 | e36000 | 80500 | 46600 | 39300 | 24600 | 18100 | 7220 | 5060 | 3140 |
20 | 7720 | 10200 | 7150 | e45000 | 69800 | 45500 | 44600 | 23900 | 16500 | 7180 | 4770 | 3370 |
21 | 7540 | 9550 | 7580 | e55000 | 61700 | 46800 | 47300 | 22700 | 15000 | 7520 | 4610 | 3450 |
22 | 7480 | 9090 | 12200 | 67300 | 55000 | 47600 | 48800 | 22600 | 13700 | 8610 | 4440 | 3530 |
23 | 7450 | 8690 | 14400 | 81900 | 49400 | 47400 | 50200 | 25700 | 12600 | 9450 | 4320 | 3610 |
24 | 7370 | 8380 | 14500 | 94600 | 44400 | 45400 | 52800 | 24800 | 12200 | 9500 | 4310 | 3630 |
25 | 7300 | 8190 | 15100 | 109000 | 40400 | 41400 | 55600 | 24600 | 14100 | 8850 | 4280 | 3650 |
26 | 7130 | 8220 | 14900 | 126000 | 37400 | 37100 | 57300 | 23600 | 16200 | 8230 | 4230 | 3640 |
27 | 7000 | 8570 | 14200 | 145000 | 35100 | 33400 | 56300 | 22900 | 17000 | 7620 | 4170 | 3540 |
28 | 6880 | 8440 | 13400 | 162000 | 38400 | 30600 | 56700 | 23000 | 20400 | 7260 | 4230 | 3520 |
29 | 6820 | 8510 | 12800 | 174000 | --- | 28600 | 60400 | 22600 | 22900 | 7010 | 4080 | 3540 |
30 | 6810 | 8700 | 11900 | 175000 | --- | 26600 | 61600 | 20800 | 21000 | 6620 | 3960 | 3580 |
31 | 6780 | --- | 10800 | 173000 | --- | 24900 | --- | 18700 | --- | 6300 | 3990 | --- |
TOTAL | 261740 | 299870 | 307620 | 1670580 | 2600000 | 1608200 | 1176200 | 928000 | 787900 | 397160 | 147680 | 102540 |
MEAN | 8443 | 9996 | 9923 | 53890 | 92860 | 51880 | 39210 | 29940 | 26260 | 12810 | 4764 | 3418 |
MAX | 15700 | 15100 | 15100 | 175000 | 167000 | 76600 | 61600 | 60200 | 53200 | 36500 | 6010 | 4040 |
MIN | 5540 | 7030 | 7150 | 8000 | 35100 | 24900 | 22500 | 18700 | 12200 | 6300 | 3960 | 2880 |
CFSM | .29 | .35 | .35 | 1.88 | 3.24 | 1.81 | 1.37 | 1.05 | .92 | .45 | .17 | .12 |
IN. | .34 | .39 | .40 | 2.17 | 3.38 | 2.09 | 1.53 | 1.21 | 1.02 | .52 | .19 | .13 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1928 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 9195 | 15500 | 25440 | 37960 | 41210 | 50510 | 50660 | 42120 | 28760 | 19270 | 12040 | 8915 |
MAX | 37700 | 87950 | 92340 | 199300 | 147100 | 108700 | 106400 | 144100 | 80120 | 73580 | 75530 | 50670 |
(WY) | 1994 | 1994 | 1986 | 1950 | 1950 | 1985 | 1938 | 1996 | 1998 | 1958 | 1979 | 1989 |
MIN | 2465 | 2632 | 2266 | 2861 | 3758 | 4815 | 11900 | 5805 | 5035 | 3366 | 2372 | 2572 |
(WY) | 1941 | 1931 | 1964 | 1977 | 1931 | 1941 | 1941 | 1934 | 1988 | 1936 | 1936 | 1940 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1928 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 13576230 | 10287490 | ||||
ANNUAL MEAN | 37200 | 28180 | 28400 | |||
HIGHEST ANNUAL MEAN | 56740 | 1950 | ||||
LOWEST ANNUAL MEAN | 6144 | 1941 | ||||
HIGHEST DAILY MEAN | 174000 | Jun 24 | 175000 | Jan 30 | 302000 | May 25 1943 |
LOWEST DAILY MEAN | 5540 | Oct 5 | 2880 | Sep 16 | 1650 | Sep 27 1941 |
ANNUAL SEVEN-DAY MINIMUM | 5820 | Sep 30 | 3000 | Sep 13 | 1700 | Dec 19 1963 |
INSTANTANEOUS PEAK FLOW | 176000 | Jan 29 | 305000 | May 25 1943 | ||
INSTANTANEOUS PEAK STAGE | 29.12 | Jan 29 | 31.75 | Jan 7 1991 | ||
ANNUAL RUNOFF (CFSM) | 1.30 | .98 | .99 | |||
ANNUAL RUNOFF (INCHES) | 17.64 | 13.36 | 13.47 | |||
10 PERCENT EXCEEDS | 82500 | 66800 | 68300 | |||
50 PERCENT EXCEEDS | 25400 | 14400 | 16600 | |||
90 PERCENT EXCEEDS | 7670 | 4260 | 4370 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |