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 | 80 | 79 | 1370 | 771 | 1060 | 1940 | 9560 | 3400 | 2680 | 5200 | 603 | 269 |
2 | 76 | 73 | 903 | 730 | 1090 | 1820 | 8700 | 5150 | 2500 | 4570 | 582 | 252 |
3 | 77 | 69 | 1100 | 706 | 1030 | 2150 | 7750 | 6850 | 2150 | 3880 | 542 | 237 |
4 | 79 | 76 | 971 | 666 | 849 | 2520 | 7540 | 8770 | 2000 | 3400 | 549 | 223 |
5 | 78 | 85 | 725 | 712 | 1110 | 1840 | 8320 | 10300 | 2060 | 3310 | 1590 | 210 |
6 | 75 | 136 | 654 | 792 | 1030 | 1500 | 8580 | 12300 | 2150 | 2730 | 4300 | 196 |
7 | 73 | 128 | 536 | 975 | 909 | 1540 | 7770 | 12800 | 2020 | 3200 | 3220 | 187 |
8 | 71 | 123 | 494 | 1900 | 750 | 1810 | 7260 | 14300 | 1780 | 3810 | 1860 | 176 |
9 | 76 | 98 | 489 | 3140 | 716 | 3120 | 6560 | 13600 | 2520 | 4070 | 1460 | 167 |
10 | 76 | 88 | 488 | 3280 | 754 | 3500 | 5800 | 13000 | 3770 | 3640 | 1240 | 163 |
11 | 75 | 97 | 580 | 3120 | 1030 | 3740 | 4990 | 12000 | 3880 | 3340 | 985 | 158 |
12 | 72 | 86 | 601 | 2970 | 1410 | 3650 | 4270 | 10400 | 6960 | 3180 | 691 | 153 |
13 | 85 | 79 | 584 | 3000 | 1320 | 3570 | 3820 | 9320 | 8610 | 2670 | 543 | 146 |
14 | 77 | 82 | 544 | 2930 | 1220 | 3670 | 4170 | 8490 | 9050 | 2350 | 466 | 144 |
15 | 88 | 80 | 518 | 2810 | 1240 | 3620 | 4070 | 7010 | 9000 | 2080 | 428 | 152 |
16 | 82 | 77 | 508 | 2520 | 1250 | 3530 | 3630 | 5950 | 10200 | 1720 | 772 | 145 |
17 | 71 | 80 | 494 | 1830 | 1570 | 3830 | 3550 | 4580 | 12100 | 1460 | 1140 | 141 |
18 | 69 | 82 | 459 | 1320 | 2220 | 5620 | 3350 | 3360 | 13600 | 1350 | 1210 | 141 |
19 | 69 | 82 | 446 | 1190 | 2480 | 6660 | 2930 | 2930 | 17500 | 1280 | 2120 | 141 |
20 | 69 | 82 | 410 | 1190 | 2800 | 7890 | 2880 | 2360 | 18700 | 1180 | 1580 | 140 |
21 | 65 | 96 | 331 | 1230 | 2770 | 11500 | 2750 | 2350 | 18400 | 1100 | 1150 | 142 |
22 | 64 | 101 | 372 | 1270 | 2690 | 13500 | 2390 | 2550 | 17700 | 883 | 903 | 143 |
23 | 64 | 90 | 415 | 1130 | 2610 | 13800 | 2260 | 3200 | 17600 | 1120 | 710 | 133 |
24 | 64 | 84 | 576 | 1010 | 2550 | 14000 | 2170 | 6290 | 15600 | 1480 | 583 | 130 |
25 | 66 | 84 | 851 | 982 | 2370 | 13800 | 1990 | 6800 | 14400 | 996 | 505 | 137 |
26 | 80 | 85 | 821 | 1020 | 2170 | 12700 | 1750 | 6800 | 11800 | 808 | 442 | 143 |
27 | 91 | 93 | 764 | 925 | 2620 | 10800 | 1760 | 7220 | 9090 | 814 | 361 | 137 |
28 | 105 | 167 | 841 | 896 | 2250 | 9440 | 2090 | 6760 | 7570 | 895 | 307 | 125 |
29 | 102 | 211 | 845 | 1040 | --- | 10700 | 2080 | 5720 | 6480 | 633 | 377 | 121 |
30 | 84 | 848 | 825 | 1050 | --- | 11800 | 2310 | 4300 | 6010 | 522 | 406 | 121 |
31 | 76 | --- | 797 | 1000 | --- | 11000 | --- | 3380 | --- | 489 | 295 | --- |
TOTAL | 2379 | 3641 | 20312 | 48105 | 45868 | 200560 | 137050 | 222240 | 257880 | 68160 | 31920 | 4873 |
MEAN | 76.7 | 121 | 655 | 1552 | 1638 | 6470 | 4568 | 7169 | 8596 | 2199 | 1030 | 162 |
MAX | 105 | 848 | 1370 | 3280 | 2800 | 14000 | 9560 | 14300 | 18700 | 5200 | 4300 | 269 |
MIN | 64 | 69 | 331 | 666 | 716 | 1500 | 1750 | 2350 | 1780 | 489 | 295 | 121 |
CFSM | .03 | .05 | .25 | .59 | .63 | 2.47 | 1.74 | 2.74 | 3.28 | .84 | .39 | .06 |
IN. | .03 | .05 | .29 | .68 | .65 | 2.85 | 1.95 | 3.16 | 3.66 | .97 | .45 | .07 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1908 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 873 | 962 | 1161 | 1891 | 2248 | 2782 | 3302 | 3201 | 2293 | 1133 | 533 | 595 |
MAX | 12280 | 5516 | 7500 | 12940 | 7762 | 8117 | 14100 | 16760 | 8596 | 4819 | 5914 | 12730 |
(WY) | 1927 | 1942 | 1928 | 1950 | 1951 | 1939 | 1922 | 1943 | 1998 | 1951 | 1915 | 1926 |
MIN | 7.29 | 12.6 | 27.5 | 29.5 | 34.6 | 50.8 | 180 | 113 | 146 | 49.1 | 40.7 | 22.3 |
(WY) | 1915 | 1915 | 1915 | 1918 | 1931 | 1954 | 1931 | 1954 | 1934 | 1954 | 1936 | 1922 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1908 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 414099 | 1042988 | ||||
ANNUAL MEAN | 1135 | 2858 | 1745 | |||
HIGHEST ANNUAL MEAN | 4808 | 1927 | ||||
LOWEST ANNUAL MEAN | 114 | 1954 | ||||
HIGHEST DAILY MEAN | 11600 | Mar 3-4 | 18700 | Jun 20 | 67700 | May 19 1943 |
LOWEST DAILY MEAN | 64 | Oct 22,23,24 | 64 | Oct 22,23,24 | 3.0 | A |
ANNUAL SEVEN-DAY MINIMUM | 66 | Oct 19 | 66 | Oct 19 | 3.0 | Oct 3 1914 |
INSTANTANEOUS PEAK FLOW | 19000 | Jun 20 | 68700 | May 19 1943 | ||
INSTANTANEOUS PEAK STAGE | 21.85 | Jun 20 | 31.52 B | May 19 1943 | ||
INSTANTANEOUS LOW FLOW | 63 | C | ||||
ANNUAL RUNOFF (CFSM) | .43 | 1.09 | .67 | |||
ANNUAL RUNOFF (INCHES) | 5.88 | 14.82 | 9.05 | |||
10 PERCENT EXCEEDS | 2660 | 8730 | 4620 | |||
50 PERCENT EXCEEDS | 524 | 1190 | 665 | |||
90 PERCENT EXCEEDS | 82 | 82 | 59 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |