DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 85400 | 70100 | 76800 | 164000 | 961000 | 275000 | 211000 | 313000 | 83100 | 161000 | 88700 | 62900 |
2 | 82200 | 74500 | 70300 | 197000 | 943000 | 331000 | 192000 | 296000 | 108000 | 176000 | 78700 | 62800 |
3 | 61800 | 88000 | 64000 | 191000 | 924000 | 377000 | 174000 | 302000 | 124000 | 189000 | 85600 | 61500 |
4 | 63000 | 86000 | 60100 | 200000 | 907000 | 409000 | 212000 | 295000 | 99200 | 233000 | 86700 | 66100 |
5 | 67900 | 74200 | 58000 | 207000 | 879000 | 438000 | 232000 | 248000 | 121000 | 166000 | 56400 | 48300 |
6 | 74500 | 109000 | 58200 | 204000 | 845000 | 482000 | 256000 | 295000 | 114000 | 174000 | 61200 | 45300 |
7 | 89700 | 89200 | 75600 | 204000 | 801000 | 510000 | 266000 | 349000 | 144000 | 128000 | 79200 | 38600 |
8 | 101000 | 64700 | 103000 | 193000 | 726000 | 543000 | 266000 | 337000 | 100000 | 164000 | 60500 | 48500 |
9 | 120000 | 63700 | 109000 | 203000 | 662000 | 595000 | 256000 | 301000 | 130000 | 131000 | 81700 | 41000 |
10 | 125000 | 87000 | 129000 | 299000 | 623000 | 625000 | 222000 | 283000 | 115000 | 151000 | 74100 | 40000 |
11 | 123000 | 96500 | 157000 | 399000 | 589000 | 639000 | 204000 | 278000 | 103000 | 80400 | 66900 | 42300 |
12 | 116000 | 102000 | 162000 | 478000 | 579000 | 642000 | 208000 | 285000 | 55600 | 110000 | 60700 | 41800 |
13 | 106000 | 108000 | 168000 | 516000 | 571000 | 636000 | 215000 | 307000 | 65400 | 142000 | 65600 | 47700 |
14 | 91800 | 92700 | 164000 | 529000 | 565000 | 648000 | 232000 | 291000 | 111000 | 120000 | 87100 | 38900 |
15 | 85300 | 97200 | 183000 | 508000 | 554000 | 668000 | 256000 | 213000 | 79500 | 136000 | 58300 | 35300 |
16 | 75100 | 109000 | 195000 | 495000 | 535000 | 661000 | 267000 | 193000 | 88200 | 109000 | 71000 | 35000 |
17 | 74800 | 93100 | 220000 | 477000 | 519000 | 654000 | 264000 | 176000 | 77700 | 113000 | 52400 | e34000 |
18 | 72500 | 96200 | 207000 | 485000 | 495000 | 640000 | 253000 | 184000 | 76000 | 106000 | 57600 | 33900 |
19 | 71400 | 103000 | 179000 | 513000 | 464000 | 631000 | 258000 | 160000 | 81000 | 116000 | 56800 | 46300 |
20 | 72300 | 103000 | 158000 | 538000 | 430000 | 620000 | 248000 | 128000 | 54700 | 102000 | 61500 | 33200 |
21 | 77300 | 87500 | 125000 | 565000 | 379000 | 582000 | 243000 | 141000 | 66900 | 109000 | 61300 | 35000 |
22 | 94700 | 91200 | 180000 | 611000 | 322000 | 563000 | 250000 | 151000 | 73900 | 93200 | 45100 | 38900 |
23 | 107000 | 99000 | 227000 | 696000 | 332000 | 553000 | 255000 | 135000 | 77500 | 98200 | 41800 | 39500 |
24 | 71100 | 79500 | 219000 | 816000 | 327000 | 509000 | 261000 | 115000 | 81800 | 88200 | 57000 | 35900 |
25 | 70300 | 76900 | 197000 | 909000 | 285000 | 485000 | 269000 | 134000 | 70400 | 86000 | 69600 | 31200 |
26 | 74100 | 77300 | 193000 | 951000 | 247000 | 454000 | 277000 | 129000 | 65400 | 107000 | 71100 | 30500 |
27 | 79400 | 78600 | 190000 | 938000 | 212000 | 386000 | 288000 | 135000 | 84800 | 108000 | 100000 | 37300 |
28 | 69400 | 83400 | 185000 | 915000 | 212000 | 311000 | 303000 | 139000 | 93600 | 86300 | 95800 | 41700 |
29 | 66700 | 75500 | 151000 | 901000 | --- | 270000 | 317000 | 138000 | 150000 | 101000 | 64800 | 51500 |
30 | 72600 | 78200 | 143000 | 921000 | --- | 247000 | 321000 | 111000 | 166000 | 111000 | 69700 | 53700 |
31 | 71600 | --- | 160000 | 951000 | --- | 228000 | --- | 88800 | --- | 101000 | 69800 | --- |
TOTAL | 2612900 | 2634200 | 4567000 | 16174000 | 15888000 | 15612000 | 7476000 | 6650800 | 2860700 | 3896300 | 2136700 | 1298600 |
MEAN | 84290 | 87810 | 147300 | 521700 | 567400 | 503600 | 249200 | 214500 | 95360 | 125700 | 68930 | 43290 |
MAX | 125000 | 109000 | 227000 | 951000 | 961000 | 668000 | 321000 | 349000 | 166000 | 233000 | 100000 | 66100 |
MIN | 61800 | 63700 | 58000 | 164000 | 212000 | 228000 | 174000 | 88800 | 54700 | 80400 | 41800 | 30500 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1928 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 103200 | 165100 | 289800 | 401000 | 471200 | 528600 | 458300 | 339200 | 221100 | 154500 | 121500 | 99230 |
MAX | 335600 | 450300 | 717500 | 1022000 | 1217000 | 1039000 | 896400 | 917800 | 596400 | 441200 | 331100 | 383500 |
(WY) | 1980 | 1986 | 1973 | 1937 | 1937 | 1997 | 1994 | 1983 | 1997 | 1928 | 1958 | 1979 |
MIN | 22710 | 33400 | 48610 | 71650 | 77380 | 154700 | 129900 | 75180 | 53840 | 23350 | 25390 | 29330 |
(WY) | 1931 | 1931 | 1931 | 1940 | 1934 | 1941 | 1986 | 1941 | 1936 | 1930 | 1930 | 1930 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1928 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 118335200 | 81807200 | ||||
ANNUAL MEAN | 324200 | 224100 | 277700 | |||
HIGHEST ANNUAL MEAN | 436600 | 1979 | ||||
LOWEST ANNUAL MEAN | 120300 | 1931 | ||||
HIGHEST DAILY MEAN | 850000 | Apr 21 | 961000 | Feb 1 | 1850000 | Feb 1 1937 |
LOWEST DAILY MEAN | 58000 | Dec 5 | 30500 | Sep 26 | 15000 | Jul 20 1930 |
ANNUAL SEVEN-DAY MINIMUM | 66100 | Dec 1 | 34900 | Sep 20 | 16600 | Jul 20 1930 |
INSTANTANEOUS PEAK FLOW | 968000 | Feb 1 | 1850000 | Feb 1 1937 | ||
INSTANTANEOUS PEAK STAGE | 51.93 | Feb 1 | 66.60 | Feb 2 1937 | ||
10 PERCENT EXCEEDS | 666000 | 567000 | 640000 | |||
50 PERCENT EXCEEDS | 276000 | 129000 | 191000 | |||
90 PERCENT EXCEEDS | 77200 | 58100 | 68000 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |