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 | 10 | 19 | 29 | 39 | 121 | 496 | 1690 | 616 | 121 | 434 | 1980 | 44 |
2 | 8.8 | 17 | 31 | 36 | 104 | 301 | 1300 | 513 | 96 | 378 | 2520 | 58 |
3 | 8.7 | 16 | 27 | 38 | 91 | 210 | 641 | 653 | 86 | 214 | 2280 | 67 |
4 | 12 | 18 | 25 | 37 | 81 | 173 | 787 | 479 | 396 | 253 | 1510 | 58 |
5 | 12 | 19 | 28 | 51 | 76 | 154 | 1110 | 635 | 1510 | 184 | 1220 | 63 |
6 | 11 | 66 | 31 | 149 | 73 | 147 | 1050 | 443 | 2410 | 170 | 1220 | 47 |
7 | 8.8 | 178 | 26 | 206 | 71 | 149 | 565 | 355 | 2650 | 140 | 1400 | 38 |
8 | 8.4 | 102 | 24 | 579 | 68 | 445 | 383 | 335 | 2030 | 662 | 2010 | 31 |
9 | 8.2 | 56 | 23 | 1250 | 66 | 1260 | 296 | 266 | 1270 | 1050 | 2290 | 26 |
10 | 10 | 36 | 26 | 1240 | 64 | 1480 | 247 | 236 | 1130 | 1120 | 1560 | 21 |
11 | 11 | 26 | 35 | 1020 | 73 | 1680 | 213 | 182 | 1210 | 384 | 480 | 19 |
12 | 9.1 | 22 | 39 | 446 | 137 | 1640 | 194 | 152 | 1230 | 279 | 730 | 18 |
13 | 9.1 | 21 | 35 | 234 | 170 | 1170 | 180 | 132 | 1190 | 375 | 960 | 16 |
14 | 16 | 20 | 30 | 164 | 190 | 450 | 360 | 112 | 1490 | 167 | 925 | 16 |
15 | 21 | 22 | 26 | 162 | 154 | 305 | 619 | e104 | 1840 | 106 | 379 | 17 |
16 | 16 | 24 | 24 | 219 | 138 | 257 | 1640 | e96 | 2140 | 88 | 171 | 17 |
17 | 13 | 23 | 24 | 169 | 453 | 320 | 2110 | e88 | 1960 | 78 | 121 | 19 |
18 | 11 | 20 | 22 | 150 | 1290 | 1040 | 3510 | 80 | 1670 | 69 | 129 | 27 |
19 | 11 | 19 | 21 | 119 | 1410 | 1430 | 3670 | 73 | 1290 | 62 | 552 | 30 |
20 | 9.6 | 19 | 21 | 92 | 1550 | 2520 | 2690 | 69 | 548 | 58 | 918 | 23 |
21 | 8.4 | 18 | 21 | 97 | 1510 | 4490 | 1520 | 73 | 599 | 53 | 977 | 27 |
22 | 8.8 | 18 | 30 | 92 | 895 | 4470 | 441 | 302 | 1080 | 50 | 531 | 23 |
23 | 9.0 | 18 | 65 | 93 | 418 | 4150 | 301 | 969 | 1520 | 451 | 174 | 20 |
24 | 14 | 17 | 95 | 95 | 302 | 3570 | 254 | 1170 | 2010 | 907 | 103 | 19 |
25 | 71 | 17 | 413 | 92 | 242 | 2540 | 217 | 1400 | 2090 | 492 | 77 | 16 |
26 | 63 | 16 | 382 | 93 | 208 | 1490 | 193 | 1610 | 1640 | 210 | 62 | 17 |
27 | 73 | 16 | 247 | 102 | 232 | 537 | 206 | 1480 | 473 | 160 | 51 | 42 |
28 | 65 | 16 | 149 | 137 | 405 | 1170 | 310 | 1030 | 192 | 110 | 43 | 52 |
29 | 36 | 15 | 87 | 170 | --- | 1430 | 662 | 347 | 149 | 87 | 41 | 53 |
30 | 23 | 18 | 63 | 170 | --- | 1620 | 795 | 197 | 406 | 357 | 39 | 35 |
31 | 19 | --- | 50 | 145 | --- | 1680 | --- | 151 | --- | 1140 | 41 | --- |
TOTAL | 614.9 | 912 | 2149 | 7686 | 10592 | 42774 | 28154 | 14348 | 36426 | 10288 | 25494 | 959 |
MEAN | 19.8 | 30.4 | 69.3 | 248 | 378 | 1380 | 938 | 463 | 1214 | 332 | 822 | 32.0 |
MAX | 73 | 178 | 413 | 1250 | 1550 | 4490 | 3670 | 1610 | 2650 | 1140 | 2520 | 67 |
MIN | 8.2 | 15 | 21 | 36 | 64 | 147 | 180 | 69 | 86 | 50 | 39 | 16 |
CFSM | .04 | .07 | .15 | .53 | .82 | 2.97 | 2.02 | 1.00 | 2.62 | .72 | 1.77 | .07 |
IN. | .05 | .07 | .17 | .62 | .85 | 3.43 | 2.26 | 1.15 | 2.92 | .82 | 2.04 | .08 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 90.0 | 286 | 456 | 399 | 581 | 716 | 734 | 527 | 322 | 136 | 104 | 95.9 |
MAX | 506 | 1543 | 2380 | 1438 | 1954 | 2390 | 1771 | 3579 | 1214 | 530 | 822 | 1142 |
(WY) | 1987 | 1994 | 1983 | 1974 | 1982 | 1978 | 1979 | 1995 | 1998 | 1981 | 1998 | 1993 |
MIN | 2.55 | 2.21 | 6.86 | 3.87 | 42.3 | 34.5 | 45.3 | 25.4 | 12.4 | 12.9 | 10.7 | 4.30 |
(WY) | 1972 | 1972 | 1977 | 1977 | 1978 | 1981 | 1981 | 1976 | 1988 | 1976 | 1971 | 1983 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1971 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 97457.8 | 180396.9 | ||||
ANNUAL MEAN | 267 | 494 | 369 | |||
HIGHEST ANNUAL MEAN | 660 | 1973 | ||||
LOWEST ANNUAL MEAN | 74.6 | 1976 | ||||
HIGHEST DAILY MEAN | 4250 | Mar 2 | 4490 | Mar 21 | 15000 | May 19 1995 |
LOWEST DAILY MEAN | 5.3 | Sep 21,22 | 8.2 | Oct 9 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | 8.4 | Sep 19 | 9.2 | Oct 7 | .75 | Sep 15 1983 |
INSTANTANEOUS PEAK FLOW | 4830 | Mar 21 | 15300 | May 19 1995 | ||
INSTANTANEOUS PEAK STAGE | 16.91 | Mar 21 | 25.38 | May 19 1995 | ||
INSTANTANEOUS LOW FLOW | 7.6 | B | ||||
ANNUAL RUNOFF (CFSM) | .58 | 1.07 | .80 | |||
ANNUAL RUNOFF (INCHES) | 7.81 | 14.46 | 10.81 | |||
10 PERCENT EXCEEDS | 728 | 1510 | 1050 | |||
50 PERCENT EXCEEDS | 73 | 149 | 73 | |||
90 PERCENT EXCEEDS | 15 | 17 | 8.7 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |