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 | 53 | 143 | 299 | 168 | 362 | 909 | 2580 | 1190 | 320 | 1280 | 130 | 73 |
2 | 51 | 156 | 266 | 245 | 586 | 731 | 2000 | 1910 | 303 | 738 | 121 | 68 |
3 | 51 | 146 | 243 | 442 | 691 | 643 | 1410 | 1240 | 295 | 589 | 114 | 64 |
4 | 50 | 134 | 243 | 1000 | 574 | 585 | 1120 | 902 | 287 | 523 | 111 | 60 |
5 | 50 | 126 | 240 | 1490 | 510 | 530 | 952 | 771 | 282 | 514 | 140 | 56 |
6 | 47 | 126 | 219 | 1390 | 455 | 489 | 851 | 719 | 273 | 469 | 150 | 54 |
7 | 46 | 219 | 211 | 1920 | 414 | 463 | 805 | 843 | 262 | 443 | 123 | 52 |
8 | 46 | 263 | 201 | 1960 | 388 | 730 | 1210 | 1540 | 259 | 506 | 132 | 50 |
9 | 45 | 233 | 196 | 1400 | 367 | 1810 | 1800 | 2010 | 370 | 480 | 113 | 47 |
10 | 46 | 208 | 196 | 1010 | 352 | 1450 | 1800 | 1320 | 485 | 454 | 109 | 46 |
11 | 46 | 191 | 193 | 834 | 401 | 953 | 1330 | 912 | 422 | 379 | 101 | 45 |
12 | 47 | 175 | 179 | e720 | 1420 | 773 | 1080 | 791 | 794 | 342 | 98 | 44 |
13 | 49 | 165 | 164 | e600 | 1560 | 703 | 1100 | 732 | 737 | 318 | 88 | 43 |
14 | 48 | 159 | 143 | e520 | 966 | 684 | 1930 | 649 | 572 | 298 | 83 | 181 |
15 | 47 | 155 | 146 | e550 | 773 | 624 | 1860 | 594 | 931 | 278 | 79 | 319 |
16 | 46 | 146 | 188 | e460 | 679 | 575 | 1920 | 576 | 1380 | 260 | 76 | 190 |
17 | 44 | 134 | 177 | e430 | 635 | 691 | 1770 | 554 | 1240 | 245 | 82 | 119 |
18 | 43 | 129 | 164 | e390 | 598 | 2100 | 1280 | 496 | 1040 | 236 | 263 | 93 |
19 | 43 | 133 | 162 | e360 | 539 | 2390 | 1060 | 468 | 1960 | 225 | 672 | 82 |
20 | 44 | 130 | 165 | e360 | 494 | 2700 | 951 | 459 | 1620 | 213 | 214 | 74 |
21 | 43 | 126 | 167 | e340 | 465 | 2090 | 911 | 462 | 1110 | 200 | 142 | 69 |
22 | 43 | 123 | 171 | e330 | 438 | 1250 | 1150 | 440 | 922 | 243 | 115 | 76 |
23 | 43 | 116 | 180 | e320 | 421 | 1000 | 1020 | 443 | 769 | 696 | 101 | 75 |
24 | 49 | 112 | 187 | e310 | 411 | 859 | 859 | 451 | 679 | 398 | 91 | 67 |
25 | 55 | 112 | 200 | 310 | 400 | 771 | 774 | 517 | 608 | 264 | 84 | 66 |
26 | 63 | 112 | 227 | 297 | 394 | 721 | 763 | 452 | 546 | 224 | 79 | 64 |
27 | 71 | 112 | 223 | 288 | 963 | 668 | 724 | 414 | 497 | 201 | 76 | 60 |
28 | 86 | 118 | 201 | 282 | 1390 | 632 | 636 | 389 | 463 | 183 | 85 | 57 |
29 | 114 | 234 | 264 | 294 | --- | 659 | 622 | 368 | 600 | 168 | 98 | 63 |
30 | 141 | 327 | 245 | 330 | --- | 603 | 622 | 354 | 1390 | 154 | 87 | 63 |
31 | 154 | --- | 182 | 347 | --- | 1980 | --- | 339 | --- | 140 | 78 | --- |
TOTAL | 1804 | 4763 | 6242 | 19697 | 17646 | 31766 | 36890 | 23305 | 21416 | 11661 | 4035 | 2420 |
MEAN | 58.2 | 159 | 201 | 635 | 630 | 1025 | 1230 | 752 | 714 | 376 | 130 | 80.7 |
MAX | 154 | 327 | 299 | 1960 | 1560 | 2700 | 2580 | 2010 | 1960 | 1280 | 672 | 319 |
MIN | 43 | 112 | 143 | 168 | 352 | 463 | 622 | 339 | 259 | 140 | 76 | 43 |
CFSM | .13 | .36 | .45 | 1.43 | 1.42 | 2.30 | 2.76 | 1.69 | 1.60 | .85 | .29 | .18 |
IN. | .15 | .40 | .52 | 1.65 | 1.48 | 2.66 | 3.08 | 1.95 | 1.79 | .97 | .34 | .20 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 127 | 160 | 175 | 244 | 354 | 503 | 540 | 468 | 416 | 303 | 165 | 129 |
MAX | 791 | 1192 | 1469 | 1133 | 1280 | 1791 | 2307 | 1762 | 1829 | 2258 | 1508 | 1006 |
(WY) | 1942 | 1978 | 1983 | 1969 | 1985 | 1993 | 1973 | 1996 | 1974 | 1982 | 1993 | 1970 |
MIN | 5.47 | 11.3 | 8.86 | 6.39 | 11.9 | 66.0 | 33.4 | 33.0 | 35.8 | 11.7 | 10.3 | 7.29 |
(WY) | 1989 | 1938 | 1964 | 1977 | 1989 | 1956 | 1956 | 1989 | 1977 | 1936 | 1988 | 1988 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1935 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 69305 | 181645 | ||||
ANNUAL MEAN | 190 | 498 | 298 | |||
HIGHEST ANNUAL MEAN | 965 | 1993 | ||||
LOWEST ANNUAL MEAN | 76.6 | 1940 | ||||
HIGHEST DAILY MEAN | 3840 | Feb 23 | 2700 | Mar 20 | 14000 | Apr 22 1973 |
LOWEST DAILY MEAN | 16 A | Jan 21 | 43 | B | 1.3 | Oct 19 1988 |
ANNUAL SEVEN-DAY MINIMUM | 18 | Jan 15 | 43 | Oct 17 | 2.4 | Oct 18 1988 |
INSTANTANEOUS PEAK FLOW | 3100 | Mar 31 | 18000 | Apr 22 1973 | ||
INSTANTANEOUS PEAK STAGE | 21.41 | Mar 31 | 23.33 | Apr 22 1973 | ||
INSTANTANEOUS LOW FLOW | 41 | C | 1.2 | D | ||
ANNUAL RUNOFF (CFSM) | .43 | 1.12 | .67 | |||
ANNUAL RUNOFF (INCHES) | 5.79 | 15.18 | 9.10 | |||
10 PERCENT EXCEEDS | 290 | 1240 | 686 | |||
50 PERCENT EXCEEDS | 113 | 319 | 130 | |||
90 PERCENT EXCEEDS | 37 | 60 | 20 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |