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 | 356 | 343 | 1960 | 1770 | 2890 | 5410 | 16200 | 17300 | 6610 | 16300 | 1580 | 1040 |
2 | 349 | 327 | 3040 | 1730 | 2860 | 4810 | 15800 | 18900 | 5570 | 12300 | 1510 | 948 |
3 | 343 | 346 | 2450 | 1780 | 2850 | 4470 | 14300 | 19100 | 5160 | 10000 | 1500 | 903 |
4 | 335 | 338 | 2230 | 1700 | 2740 | 4570 | 13600 | 17900 | 4690 | 8540 | 1610 | 852 |
5 | 329 | 347 | 2140 | 1900 | 2540 | 4810 | 13200 | 16900 | 4470 | 7490 | 4420 | 813 |
6 | 323 | 383 | 1770 | 2370 | 2640 | 4140 | 12800 | 15800 | 4460 | 6930 | 5150 | 784 |
7 | 318 | 438 | 1590 | 2830 | 2590 | 3660 | 12600 | 17100 | 4350 | 6660 | 6550 | 748 |
8 | 320 | 501 | 1430 | 4130 | 2440 | 3840 | 13000 | 23000 | 4200 | 10300 | 5110 | 716 |
9 | 317 | 464 | 1330 | 7940 | 2240 | 7150 | 13500 | 24900 | 4480 | 10100 | 3560 | 696 |
10 | 316 | 441 | 1310 | 9320 | 2140 | 9690 | 12000 | 24900 | 6120 | 8700 | 2890 | 679 |
11 | 317 | 407 | 1280 | 8080 | 2510 | 9000 | 10700 | 21900 | 7890 | 7760 | 2550 | 664 |
12 | 328 | 387 | 1310 | 7110 | 5000 | 8400 | 9570 | 19800 | 12600 | 6880 | 2250 | 649 |
13 | 335 | 379 | 1360 | 6450 | 5880 | 7880 | 8600 | 19000 | 13700 | 6340 | 1880 | 639 |
14 | 326 | 377 | 1360 | 6010 | 5040 | 7750 | 8940 | 16800 | 13500 | 5570 | 1620 | 656 |
15 | 363 | 376 | 1320 | 5750 | 4380 | 7810 | 9550 | 14700 | 14100 | 4950 | 1450 | 640 |
16 | 344 | 368 | 1270 | 5500 | 4110 | 7510 | 9010 | 13100 | 16900 | 4510 | 1370 | 636 |
17 | 333 | 371 | 1240 | 4980 | 4120 | 7600 | 8120 | 11200 | 19700 | 4000 | 1390 | 639 |
18 | 329 | 369 | 1230 | 4170 | 4940 | 13300 | 7500 | 9150 | 21400 | 3620 | 3440 | 618 |
19 | 319 | 359 | 1200 | 3440 | 6050 | 16400 | 6960 | 7350 | 20700 | 3350 | 5100 | 604 |
20 | 305 | 361 | 1160 | 3110 | 6170 | 16000 | 6300 | 6900 | 22800 | 3240 | 4200 | 596 |
21 | 302 | 355 | 1130 | 2990 | 6290 | 19300 | 6060 | 6120 | 24900 | 3030 | 3100 | 587 |
22 | 301 | 358 | 1080 | 2960 | 6090 | 20800 | 5900 | 5790 | 25600 | 2900 | 2450 | 573 |
23 | 301 | 366 | 1080 | 2950 | 5830 | 21900 | 5350 | 6270 | 27500 | 3130 | 2070 | 565 |
24 | 306 | 370 | 1210 | 2810 | 5600 | 21500 | 5030 | 8100 | 27600 | 2730 | 1770 | 568 |
25 | 301 | 370 | 1570 | 2590 | 5360 | 20800 | 4800 | 11000 | 25600 | 2920 | 1530 | 589 |
26 | 312 | 355 | 2330 | 2480 | 5080 | 20200 | 4550 | 11700 | 22700 | 2560 | 1370 | 634 |
27 | 325 | 357 | 2300 | 2460 | 5120 | 19100 | 4170 | 11800 | 19500 | 2230 | 1250 | 590 |
28 | 359 | 390 | 2090 | 2560 | 5910 | 17900 | 3960 | 11200 | 16200 | 2060 | 1190 | 575 |
29 | 381 | 496 | 2040 | 2690 | --- | 17200 | 4660 | 10600 | 15600 | 2080 | 1180 | 563 |
30 | 366 | 837 | 2010 | 2980 | --- | 16300 | 12200 | 9570 | 19600 | 1890 | 1080 | 549 |
31 | 363 | --- | 1900 | 2990 | --- | 16000 | --- | 7980 | --- | 1730 | 1120 | --- |
TOTAL | 10222 | 11936 | 50720 | 120530 | 119410 | 365200 | 278930 | 435830 | 438200 | 174800 | 77240 | 20313 |
MEAN | 330 | 398 | 1636 | 3888 | 4265 | 11780 | 9298 | 14060 | 14610 | 5639 | 2492 | 677 |
MAX | 381 | 837 | 3040 | 9320 | 6290 | 21900 | 16200 | 24900 | 27600 | 16300 | 6550 | 1040 |
MIN | 301 | 327 | 1080 | 1700 | 2140 | 3660 | 3960 | 5790 | 4200 | 1730 | 1080 | 549 |
CFSM | .06 | .08 | .32 | .76 | .84 | 2.31 | 1.83 | 2.76 | 2.87 | 1.11 | .49 | .13 |
IN. | .07 | .09 | .37 | .88 | .87 | 2.67 | 2.04 | 3.18 | 3.20 | 1.28 | .56 | .15 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1910 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 1281 | 1738 | 2566 | 3389 | 4340 | 5394 | 6413 | 6274 | 4773 | 2880 | 1649 | 1139 |
MAX | 12180 | 13180 | 18250 | 19580 | 14010 | 19590 | 25140 | 30570 | 20730 | 11480 | 15000 | 13180 |
(WY) | 1994 | 1986 | 1983 | 1950 | 1968 | 1979 | 1922 | 1943 | 1974 | 1981 | 1981 | 1993 |
MIN | 118 | 98.1 | 102 | 78.9 | 186 | 287 | 526 | 598 | 699 | 302 | 184 | 70.0 |
(WY) | 1915 | 1915 | 1915 | 1918 | 1931 | 1941 | 1931 | 1954 | 1988 | 1911 | 1922 | 1922 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1910 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 830659 | 2103331 | ||||
ANNUAL MEAN | 2276 | 5763 | 3484 | |||
HIGHEST ANNUAL MEAN | 8523 | 1993 | ||||
LOWEST ANNUAL MEAN | 516 | 1954 | ||||
HIGHEST DAILY MEAN | 14200 | Mar 4 | 27600 | Jun 24 | 120000 | May 20 1943 |
LOWEST DAILY MEAN | 301 | A | 301 | A | 45 B | C |
ANNUAL SEVEN-DAY MINIMUM | 304 | Oct 20 | 304 | Oct 20 | 45 | Jan 21 1918 |
INSTANTANEOUS PEAK FLOW | 28000 | Jun 24 | 123000 | May 20 1943 | ||
INSTANTANEOUS PEAK STAGE | 18.04 | Jun 24 | 25.63 | May 20 1943 | ||
INSTANTANEOUS LOW FLOW | 294 | D | ||||
ANNUAL RUNOFF (CFSM) | .45 | 1.13 | .68 | |||
ANNUAL RUNOFF (INCHES) | 6.07 | 15.36 | 9.29 | |||
10 PERCENT EXCEEDS | 5220 | 16300 | 8990 | |||
50 PERCENT EXCEEDS | 1430 | 3040 | 1620 | |||
90 PERCENT EXCEEDS | 359 | 359 | 297 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |