DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 45800 | 70400 | 64000 | 55700 | 84300 | 209000 | 230000 | 259000 | 168000 | 261000 | 105000 | 91700 |
2 | 52500 | 62800 | 63700 | 50900 | 85300 | 198000 | 234000 | 253000 | 172000 | 273000 | 98100 | 73600 |
3 | 48000 | 58200 | 60700 | 51300 | 82800 | 191000 | 241000 | 253000 | 170000 | 279000 | 95400 | 48000 |
4 | 48100 | 65700 | 50000 | 79900 | 93300 | 189000 | 256000 | 256000 | 165000 | 279000 | 92300 | 48300 |
5 | 50100 | 78800 | 43000 | 99200 | 95500 | 186000 | 273000 | 249000 | 157000 | 278000 | 94700 | 46500 |
6 | 51300 | 70700 | 49900 | 111000 | 95200 | 185000 | 286000 | 233000 | 145000 | 279000 | 103000 | 46900 |
7 | 48600 | 65500 | 55000 | 124000 | 92300 | 183000 | 295000 | 222000 | 136000 | 281000 | 109000 | 44400 |
8 | 46400 | 65600 | 57800 | 156000 | 93600 | 186000 | 300000 | 222000 | 135000 | 284000 | 113000 | 43200 |
9 | 42800 | 59400 | 60500 | 184000 | 92200 | 215000 | 304000 | 219000 | 148000 | 289000 | 119000 | 43600 |
10 | 41900 | 60800 | 54600 | 165000 | 91600 | 225000 | 306000 | 217000 | 146000 | 293000 | 121000 | 47400 |
11 | 52000 | 63900 | 55400 | 130000 | 94700 | 229000 | 308000 | 216000 | 146000 | 294000 | 120000 | 44300 |
12 | 50400 | 63000 | 57800 | 98300 | 117000 | 229000 | 312000 | 211000 | 182000 | 290000 | 118000 | 43300 |
13 | 51400 | 60200 | 57200 | 65900 | 133000 | 222000 | 318000 | 208000 | 190000 | 284000 | 114000 | 39300 |
14 | 41400 | 50400 | 55900 | 78200 | 132000 | 211000 | 329000 | 212000 | 200000 | 276000 | 104000 | 47300 |
15 | 49800 | 46800 | 58100 | 66800 | 115000 | 192000 | 335000 | 214000 | 219000 | 267000 | 104000 | 50300 |
16 | 68600 | 43900 | 58700 | 71600 | 111000 | 171000 | 346000 | 205000 | 221000 | 255000 | 102000 | 66200 |
17 | 73200 | 53000 | 58600 | 73400 | 114000 | 161000 | 356000 | 183000 | 229000 | 242000 | 85900 | 70800 |
18 | 71100 | 50400 | 60400 | 79500 | 122000 | 205000 | 356000 | 163000 | 230000 | 227000 | 79800 | 59500 |
19 | 72700 | 47500 | 54700 | 76300 | 123000 | 221000 | 348000 | 165000 | 227000 | 216000 | 96400 | 47200 |
20 | 71100 | 50300 | 56600 | 85500 | 123000 | 216000 | 337000 | 173000 | 230000 | 207000 | 99100 | 42800 |
21 | 70100 | 46200 | 65800 | 80000 | 126000 | 211000 | 324000 | 180000 | 236000 | 192000 | 72600 | 40900 |
22 | 73900 | 44000 | 57000 | 77300 | 128000 | 207000 | 311000 | 203000 | 233000 | 173000 | 64200 | 42500 |
23 | 76000 | 42500 | 53700 | 82300 | 132000 | 202000 | 302000 | 219000 | 236000 | 156000 | 54300 | 38800 |
24 | 78900 | 48700 | 59700 | 85900 | 140000 | 202000 | 294000 | 213000 | 246000 | 161000 | 58700 | 41800 |
25 | 74000 | 42500 | 54800 | 84200 | 139000 | 208000 | 288000 | 214000 | 252000 | 161000 | 65800 | 41100 |
26 | 74800 | 36700 | 53500 | 87000 | 139000 | 216000 | 281000 | 220000 | 250000 | 160000 | 66400 | 40800 |
27 | 65900 | 43200 | 59300 | 82800 | 164000 | 217000 | 274000 | 219000 | 249000 | 140000 | 59200 | 40100 |
28 | 64000 | 48300 | 59100 | 85300 | 202000 | 216000 | 268000 | 209000 | 252000 | 118000 | 64200 | 38600 |
29 | 62100 | 57200 | 52600 | 81600 | --- | 216000 | 264000 | 193000 | 249000 | 109000 | 79600 | 42300 |
30 | 69200 | 67700 | 49200 | 84300 | --- | 215000 | 265000 | 192000 | 251000 | 116000 | 93100 | 40700 |
31 | 72300 | --- | 48800 | 89700 | --- | 217000 | --- | 176000 | --- | 114000 | 96900 | --- |
MEAN | 59950 | 55480 | 56330 | 91060 | 116500 | 204900 | 298000 | 212000 | 202300 | 224300 | 91890 | 48410 |
MAX | 78900 | 78800 | 65800 | 184000 | 202000 | 229000 | 356000 | 259000 | 252000 | 294000 | 121000 | 91700 |
MIN | 41400 | 36700 | 43000 | 50900 | 82800 | 161000 | 230000 | 163000 | 135000 | 109000 | 54300 | 38600 |
IN. | .40 | .36 | .38 | .61 | .71 | 1.38 | 1.94 | 1.43 | 1.32 | 1.51 | .62 | .32 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 94750 | 96780 | 94410 | 82740 | 94230 | 150400 | 191000 | 192900 | 159400 | 149100 | 111200 | 89680 |
MAX | 334900 | 171300 | 169900 | 161000 | 124500 | 217400 | 342100 | 333300 | 263900 | 469300 | 416900 | 309900 |
(WY) | 1987 | 1987 | 1993 | 1993 | 1997 | 1997 | 1993 | 1993 | 1996 | 1993 | 1993 | 1993 |
MIN | 28050 | 33270 | 31810 | 34800 | 40940 | 72220 | 82570 | 69140 | 36310 | 30420 | 37230 | 37850 |
(WY) | 1989 | 1990 | 1990 | 1990 | 1989 | 1989 | 1990 | 1988 | 1988 | 1988 | 1988 | 1988 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1987 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL MEAN | 116700 | 138500 | 125700 | |||
HIGHEST ANNUAL MEAN | 250700 | 1993 | ||||
LOWEST ANNUAL MEAN | 53860 | 1989 | ||||
HIGHEST DAILY MEAN | 304000 | Mar 1 | 356000 | Apr 17 | 596000 | Aug 3 1993 |
LOWEST DAILY MEAN | 36700 | Nov 26 | 36700 | Nov 26 | 20100 | Dec 14 1988 |
ANNUAL SEVEN-DAY MINIMUM | 43400 | Nov 21 | 40500 | Sep 23 | 23600 | Dec 12 1988 |
INSTANTANEOUS PEAK FLOW | --- | 358000 | Apr 17,18 | 598000 | Aug 1 1993 | |
INSTANTANEOUS PEAK STAGE | --- | 429.60 | Apr 17 | 441.96 | Aug 1 1993 | |
INSTANTANEOUS LOW FLOW | --- | 31900 | Nov 26 | 20100 | Dec 14 1988 | |
ANNUAL RUNOFF (INCHES) | 9.25 | 10.98 | 9.97 | |||
10 PERCENT EXCEEDS | 227000 | 270000 | 246000 | |||
50 PERCENT EXCEEDS | 85000 | 109000 | 98300 | |||
90 PERCENT EXCEEDS | 53300 | 47500 | 43400 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |