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 | 465 | 448 | 842 | 567 | 939 | 1690 | 1720 | 1940 | 912 | 2050 | 344 | 460 |
2 | 385 | 573 | 807 | 543 | 1050 | 1630 | 2180 | 1810 | 690 | 1970 | 321 | 441 |
3 | 328 | 689 | 805 | 561 | 1070 | 1580 | 2340 | 1780 | 671 | 1880 | 319 | 431 |
4 | 320 | 695 | 807 | 662 | 1130 | 1490 | 2340 | 1740 | 672 | 1950 | 325 | 419 |
5 | 296 | 682 | 821 | 826 | 1210 | 1410 | 2260 | 1660 | 695 | 1870 | 342 | 372 |
6 | 335 | 714 | 809 | 1170 | 1190 | 1280 | 2030 | 1550 | 665 | 1770 | 594 | 360 |
7 | 334 | 753 | 810 | 1760 | 1190 | 1270 | 1820 | 1660 | 640 | 1740 | 1090 | 494 |
8 | 314 | 739 | 773 | 2060 | 1190 | 1320 | 1930 | 2230 | 635 | 1660 | 1240 | 459 |
9 | 293 | 733 | 701 | 2010 | 1160 | 1430 | 2290 | 2640 | 651 | 1550 | 1260 | 412 |
10 | 340 | 735 | 696 | 1890 | 1140 | 1330 | 2360 | 2740 | 656 | 1410 | 1270 | 367 |
11 | 334 | 717 | 674 | 1750 | 1160 | 1380 | 2350 | 2720 | 677 | 1130 | 1280 | 344 |
12 | 308 | 697 | 621 | 1800 | 1360 | 1320 | 2280 | 2610 | 689 | 966 | 1230 | 345 |
13 | 306 | 619 | 581 | 1640 | 1520 | 1250 | 2240 | 2650 | 805 | 745 | 1100 | 335 |
14 | 337 | 586 | 562 | 1550 | 1610 | 1280 | 2250 | 2620 | 871 | 603 | 1070 | 368 |
15 | 362 | 646 | 545 | 1330 | 1680 | 1280 | 2280 | 2450 | 1030 | 549 | 1080 | 485 |
16 | 379 | 613 | 525 | 1260 | 1770 | 1270 | 2730 | 2010 | 1040 | 533 | 1000 | 555 |
17 | 376 | 624 | 514 | 1210 | 1740 | 1290 | 2870 | 1870 | 992 | 438 | 949 | 667 |
18 | 354 | 641 | 493 | 1190 | 1760 | 1390 | 2890 | 1710 | 917 | 397 | 852 | 682 |
19 | 350 | 748 | 509 | 1180 | 1750 | 1530 | 2900 | 1450 | 814 | 385 | 668 | 651 |
20 | 372 | 745 | 508 | 1150 | 1770 | 1660 | 2880 | 1150 | 785 | 401 | 523 | 610 |
21 | 365 | 755 | 519 | 1140 | 1800 | 1630 | 2890 | 953 | 797 | 356 | 426 | 604 |
22 | 355 | 725 | 516 | 1120 | 1800 | 1590 | 2920 | 926 | 810 | 411 | 408 | 546 |
23 | 347 | 753 | 542 | 1080 | 1800 | 1520 | 2890 | 920 | 800 | 430 | 338 | 398 |
24 | 392 | 729 | 602 | 1030 | 1780 | 1300 | 2820 | 881 | 732 | 434 | 378 | 352 |
25 | 447 | 710 | 565 | 1040 | 1770 | 1140 | 2740 | 852 | 644 | 434 | 460 | 334 |
26 | 530 | 738 | 570 | 1030 | 1740 | 1020 | 2720 | 815 | 1320 | 421 | 469 | 271 |
27 | 512 | 723 | 588 | 1010 | 1700 | 974 | 2670 | 709 | 1640 | 398 | 488 | 337 |
28 | 395 | 725 | 577 | 971 | 1700 | 994 | 2540 | 661 | 1740 | 382 | 517 | 371 |
29 | 421 | 718 | 586 | 976 | --- | 949 | 2460 | 756 | 1970 | 403 | 511 | 349 |
30 | 398 | 833 | 558 | 982 | --- | 976 | 2310 | 987 | 2030 | 394 | 514 | 358 |
31 | 387 | --- | 570 | 941 | --- | 1180 | --- | 988 | --- | 391 | 506 | --- |
TOTAL | 11437 | 20806 | 19596 | 37429 | 41479 | 41353 | 73900 | 50438 | 27990 | 28451 | 21872 | 13177 |
MEAN | 369 | 694 | 632 | 1207 | 1481 | 1334 | 2463 | 1627 | 933 | 918 | 706 | 439 |
MAX | 530 | 833 | 842 | 2060 | 1800 | 1690 | 2920 | 2740 | 2030 | 2050 | 1280 | 682 |
MIN | 293 | 448 | 493 | 543 | 939 | 949 | 1720 | 661 | 635 | 356 | 319 | 271 |
CFSM | .26 | .49 | .45 | .86 | 1.06 | .95 | 1.76 | 1.16 | .67 | .65 | .50 | .31 |
IN. | .30 | .55 | .52 | .99 | 1.10 | 1.10 | 1.96 | 1.34 | .74 | .75 | .58 | .35 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1916 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 611 | 809 | 788 | 720 | 853 | 1668 | 1719 | 1132 | 785 | 601 | 466 | 498 |
MAX | 3650 | 2492 | 3105 | 2675 | 3613 | 4162 | 4961 | 3786 | 3075 | 2902 | 2964 | 2926 |
(WY) | 1987 | 1986 | 1983 | 1960 | 1938 | 1918 | 1993 | 1973 | 1996 | 1938 | 1924 | 1972 |
MIN | 31.8 | 147 | 185 | 142 | 168 | 274 | 237 | 150 | 110 | 57.7 | 31.4 | 52.9 |
(WY) | 1957 | 1954 | 1940 | 1940 | 1940 | 1934 | 1934 | 1934 | 1934 | 1934 | 1934 | 1934 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1916 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 351677 | 387928 | ||||
ANNUAL MEAN | 963 | 1063 | 887 | |||
HIGHEST ANNUAL MEAN | 1936 | 1993 | ||||
LOWEST ANNUAL MEAN | 202 | 1934 | ||||
HIGHEST DAILY MEAN | 3520 | Feb 24 | 2920 | Apr 22 | 6610 | Apr 2 1979 |
LOWEST DAILY MEAN | 281 | Sep 16 | 271 | Sep 26 | 12 | A |
ANNUAL SEVEN-DAY MINIMUM | 309 | Sep 10 | 317 | Oct 3 | 19 | Oct 16 1956 |
INSTANTANEOUS PEAK FLOW | 2930 | Apr 22 | 6610 | B | ||
INSTANTANEOUS PEAK STAGE | 2.65 | Apr 22 | 4.50 C | Apr 1 1916 | ||
INSTANTANEOUS LOW FLOW | 157 | Oct 5 | .00 | D | ||
ANNUAL RUNOFF (CFSM) | .69 | .76 | .63 | |||
ANNUAL RUNOFF (INCHES) | 9.32 | 10.29 | 8.59 | |||
10 PERCENT EXCEEDS | 1700 | 2040 | 2000 | |||
50 PERCENT EXCEEDS | 807 | 814 | 596 | |||
90 PERCENT EXCEEDS | 375 | 368 | 187 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |