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 | 92 | 298 | 522 | 351 | 482 | 1150 | 3230 | 1050 | 355 | 710 | 89 | 48 |
2 | 93 | 302 | 464 | 386 | 706 | 937 | 1960 | 953 | 346 | 576 | 84 | 46 |
3 | 91 | 288 | 442 | 746 | 671 | 823 | 1340 | 785 | 330 | 513 | 80 | 44 |
4 | 88 | 262 | 461 | 1360 | 612 | 733 | 1120 | 696 | 340 | 471 | 93 | 37 |
5 | 74 | 242 | 425 | 1950 | 568 | 658 | 943 | 638 | 324 | 438 | 434 | 35 |
6 | 67 | 419 | 389 | 1500 | 525 | 609 | 848 | 602 | 309 | 418 | 235 | 33 |
7 | 66 | 601 | 366 | 2520 | 489 | 576 | 792 | 776 | 295 | 396 | 157 | 31 |
8 | 66 | 505 | 349 | 2050 | 461 | 1060 | 1170 | 2160 | 297 | 420 | 141 | 30 |
9 | 72 | 436 | 345 | 1530 | 438 | 2480 | 2090 | 1650 | 601 | 392 | 399 | 27 |
10 | 76 | 385 | 342 | 1230 | 426 | 1480 | 1770 | 1070 | 753 | 375 | 211 | 45 |
11 | 72 | 345 | 325 | 1010 | 636 | 1120 | 1320 | 891 | 602 | 335 | e160 | 46 |
12 | 67 | 311 | 296 | 894 | 1810 | 923 | 1110 | 814 | 1080 | 302 | 103 | 47 |
13 | 74 | 291 | 282 | 776 | 1260 | 859 | 1140 | 750 | 779 | 281 | 89 | 51 |
14 | 79 | 281 | 262 | e660 | 980 | 842 | 1980 | 676 | 825 | 263 | 80 | 160 |
15 | 79 | 262 | 261 | e660 | 838 | 759 | 1480 | 629 | 2100 | 249 | 74 | 261 |
16 | 64 | 234 | 270 | e570 | 751 | 708 | 1870 | 614 | 2670 | 231 | 68 | 156 |
17 | 62 | 211 | 263 | e530 | 718 | 1100 | 1480 | 563 | 2480 | 217 | 71 | 91 |
18 | 60 | 208 | 260 | e490 | 669 | 3980 | 1160 | 528 | 1590 | 207 | 80 | 75 |
19 | 61 | 207 | 260 | e470 | 603 | 4580 | 988 | 501 | 2220 | 201 | 100 | 60 |
20 | 60 | 198 | 257 | e440 | 567 | 2580 | 893 | 488 | 1470 | 187 | 74 | 53 |
21 | 56 | 194 | 252 | e440 | 536 | 1470 | 868 | 489 | 1260 | 173 | 61 | 50 |
22 | 53 | 183 | 272 | e430 | 507 | 1200 | 915 | 478 | 1030 | 170 | 57 | 46 |
23 | 58 | 163 | 295 | 423 | 491 | 1020 | 806 | 494 | 902 | 178 | 53 | 56 |
24 | 124 | 150 | 299 | 408 | 470 | 903 | 741 | 578 | 808 | 173 | 50 | 62 |
25 | 183 | 150 | 360 | 389 | 448 | 835 | 699 | 636 | 729 | 145 | 49 | 85 |
26 | 152 | 155 | 358 | 378 | 455 | 786 | 700 | 540 | 661 | 135 | 47 | 75 |
27 | 256 | 150 | 347 | 365 | 1570 | 729 | 627 | 492 | 600 | 126 | 47 | 57 |
28 | 343 | 306 | 342 | 365 | 1670 | 724 | 573 | 458 | 551 | 120 | 58 | 52 |
29 | 351 | 678 | 383 | 399 | --- | 694 | 616 | 426 | 536 | 113 | 69 | 56 |
30 | 346 | 574 | 337 | 459 | --- | 647 | 616 | 409 | 873 | 102 | 60 | 113 |
31 | 307 | --- | 289 | 444 | --- | 1910 | --- | 390 | --- | 97 | 49 | --- |
TOTAL | 3692 | 8989 | 10375 | 24623 | 20357 | 38875 | 35845 | 22224 | 27716 | 8714 | 3422 | 2028 |
MEAN | 119 | 300 | 335 | 794 | 727 | 1254 | 1195 | 717 | 924 | 281 | 110 | 67.6 |
MAX | 351 | 678 | 522 | 2520 | 1810 | 4580 | 3230 | 2160 | 2670 | 710 | 434 | 261 |
MIN | 53 | 150 | 252 | 351 | 426 | 576 | 573 | 390 | 295 | 97 | 47 | 27 |
CFSM | .28 | .69 | .77 | 1.84 | 1.68 | 2.90 | 2.77 | 1.66 | 2.14 | .65 | .26 | .16 |
IN. | .32 | .77 | .89 | 2.12 | 1.75 | 3.35 | 3.09 | 1.91 | 2.39 | .75 | .29 | .17 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 145 | 171 | 181 | 246 | 362 | 464 | 494 | 461 | 440 | 317 | 149 | 137 |
MAX | 1560 | 1189 | 1176 | 1265 | 1466 | 1752 | 1742 | 1829 | 1960 | 2967 | 1675 | 1222 |
(WY) | 1942 | 1978 | 1983 | 1969 | 1949 | 1979 | 1973 | 1996 | 1974 | 1982 | 1993 | 1970 |
MIN | 7.10 | 9.89 | 8.38 | 4.45 | 13.5 | 47.4 | 33.4 | 26.9 | 31.3 | 6.58 | 9.61 | 5.65 |
(WY) | 1938 | 1938 | 1964 | 1940 | 1989 | 1956 | 1956 | 1989 | 1940 | 1936 | 1936 | 1940 |
SUMMARY STATISTICS | FOR 1998 WATER YEAR | WATER YEARS 1935 - 1998 | ||||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 206860 | |||||
ANNUAL MEAN | 567 | 297 | ||||
HIGHEST ANNUAL MEAN | 1002 | 1993 | ||||
LOWEST ANNUAL MEAN | 50.9 | 1989 | ||||
HIGHEST DAILY MEAN | 4580 | Mar 19 | 25800 | Jul 25 1993 | ||
LOWEST DAILY MEAN | 27 | Sep 9 | 1.7 A | B | ||
ANNUAL SEVEN-DAY MINIMUM | 34 | Sep 3 | 2.1 | Sep 17 1940 | ||
INSTANTANEOUS PEAK FLOW | 5160 | Mar 19 | 34600 C | Jul 8 1982 | ||
INSTANTANEOUS PEAK STAGE | 24.91 | Mar 19 | 32.65 A | Jul 25 1993 | ||
INSTANTANEOUS LOW FLOW | 27 | Sep 9 | ||||
ANNUAL RUNOFF (CFSM) | 1.31 | .69 | ||||
ANNUAL RUNOFF (INCHES) | 17.81 | 9.34 | ||||
10 PERCENT EXCEEDS | 1240 | 660 | ||||
50 PERCENT EXCEEDS | 409 | 126 | ||||
90 PERCENT EXCEEDS | 61 | 18 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |