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 | 119 | 211 | 478 | 570 | 2050 | 1560 | 7990 | 5600 | 1220 | 4480 | 479 | 138 |
2 | 118 | 201 | 576 | 660 | 2100 | 1480 | 6930 | 6780 | 1140 | 4670 | 410 | 133 |
3 | 109 | 192 | 585 | 579 | 2050 | 1400 | 5990 | 6610 | 1050 | 4290 | 366 | 132 |
4 | 108 | 181 | 531 | 815 | 1900 | 1330 | 5110 | 7440 | 978 | 4000 | 363 | 121 |
5 | 109 | 176 | 464 | 1980 | 1790 | 1250 | 4400 | 9320 | 913 | 5140 | 462 | 120 |
6 | 107 | 177 | 408 | 4300 | 1660 | 1180 | 3850 | 11200 | 879 | 5570 | 517 | 116 |
7 | 102 | 181 | 374 | 5750 | 1500 | 1110 | 3430 | 14000 | 833 | 5600 | 974 | 108 |
8 | 101 | 184 | 342 | 7390 | 1370 | 1260 | 3360 | 17900 | 782 | 8490 | 2160 | 111 |
9 | 100 | 180 | 316 | 9560 | 1270 | 3450 | 4080 | 19000 | 864 | 11500 | 2460 | 117 |
10 | 91 | 174 | 306 | 9860 | 1180 | 7190 | 4800 | 19600 | 1340 | 12200 | 2240 | 118 |
11 | 94 | 168 | 307 | 9370 | 1260 | 8490 | 5390 | 18300 | 5400 | 10800 | 1820 | 116 |
12 | 100 | 167 | 307 | 8340 | 1900 | 8480 | 4980 | 15600 | 11200 | 8030 | 1460 | 113 |
13 | 100 | 157 | 304 | 6580 | 2200 | 7800 | 4240 | 12400 | 12100 | 4740 | 1090 | 106 |
14 | 95 | 149 | 337 | 4830 | 2320 | 6620 | 4220 | 9140 | 12000 | 2850 | 805 | 105 |
15 | 96 | 157 | 359 | 3990 | 2250 | 5710 | 4700 | 6390 | 11000 | 1930 | 602 | 99 |
16 | 96 | 157 | 341 | 3390 | 2060 | 5250 | 4990 | 4780 | 9910 | 1440 | 493 | 92 |
17 | 100 | 159 | 316 | 2860 | 2000 | 6200 | 5420 | 3790 | 9130 | 1160 | 417 | 91 |
18 | 105 | 158 | 323 | 2380 | 2440 | 12900 | 5140 | 3070 | 8680 | 978 | 389 | 90 |
19 | 108 | 155 | 324 | 1950 | 2980 | 16100 | 4460 | 2540 | 8580 | 860 | 352 | 90 |
20 | 106 | 161 | 337 | 1630 | 3310 | 17300 | 3700 | 2270 | 8310 | 757 | 303 | 95 |
21 | 105 | 158 | 346 | 1430 | 3080 | 18400 | 3590 | 2810 | 7580 | 690 | 265 | 88 |
22 | 101 | 171 | 354 | 1310 | 2710 | 18800 | 3700 | 2610 | 6220 | 1070 | 237 | 87 |
23 | 102 | 175 | 369 | 1210 | 2410 | 17600 | 3670 | 2180 | 4620 | 1840 | 216 | 92 |
24 | 97 | 178 | 399 | 1130 | 2180 | 15700 | 3420 | 2180 | 3680 | 2430 | 198 | 91 |
25 | 90 | 192 | 612 | 1080 | 1980 | 13500 | 3130 | 2420 | 3130 | 2480 | 183 | 89 |
26 | 93 | 185 | 854 | 1020 | 1800 | 11100 | 2890 | 2440 | 2490 | 2030 | 176 | 92 |
27 | 115 | 186 | 1070 | 980 | 1720 | 8460 | 2660 | 2050 | 1990 | 1610 | 167 | 82 |
28 | 144 | 211 | 1130 | 975 | 1640 | 6770 | 2440 | 1730 | 1630 | 1230 | 162 | 79 |
29 | 148 | 276 | 1020 | 1120 | --- | 7350 | 2360 | 1500 | 1420 | 922 | 161 | 77 |
30 | 180 | 340 | 892 | 1470 | --- | 8310 | 3910 | 1380 | 2450 | 718 | 153 | 79 |
31 | 208 | --- | 749 | 1840 | --- | 8500 | --- | 1290 | --- | 572 | 146 | --- |
TOTAL | 3447 | 5517 | 15430 | 100349 | 57110 | 250550 | 128950 | 218320 | 141519 | 115077 | 20226 | 3067 |
MEAN | 111 | 184 | 498 | 3237 | 2040 | 8082 | 4298 | 7043 | 4717 | 3712 | 652 | 102 |
MAX | 208 | 340 | 1130 | 9860 | 3310 | 18800 | 7990 | 19600 | 12100 | 12200 | 2460 | 138 |
MIN | 90 | 149 | 304 | 570 | 1180 | 1110 | 2360 | 1290 | 782 | 572 | 146 | 77 |
CFSM | .05 | .09 | .24 | 1.55 | .98 | 3.87 | 2.06 | 3.37 | 2.26 | 1.78 | .31 | .05 |
IN. | .06 | .10 | .27 | 1.79 | 1.02 | 4.46 | 2.29 | 3.88 | 2.52 | 2.05 | .36 | .05 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1923 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 709 | 975 | 1560 | 1922 | 2517 | 3166 | 3237 | 2711 | 2014 | 1244 | 465 | 576 |
MAX | 8019 | 5850 | 8203 | 9079 | 7425 | 11210 | 8396 | 10910 | 7934 | 7004 | 2497 | 7372 |
(WY) | 1994 | 1986 | 1928 | 1950 | 1982 | 1982 | 1950 | 1943 | 1958 | 1993 | 1977 | 1993 |
MIN | 25.5 | 37.2 | 40.7 | 26.1 | 82.3 | 200 | 574 | 169 | 94.6 | 33.0 | 33.7 | 26.3 |
(WY) | 1957 | 1965 | 1964 | 1945 | 1931 | 1931 | 1931 | 1934 | 1934 | 1934 | 1988 | 1941 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1923 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 762171 | 1059562 | ||||
ANNUAL MEAN | 2088 | 2903 | 1757 | |||
HIGHEST ANNUAL MEAN | 4477 | 1993 | ||||
LOWEST ANNUAL MEAN | 365 | 1931 | ||||
HIGHEST DAILY MEAN | 17200 | Mar 1 | 19600 | May 10 | 27000 | Mar 7 1979 |
LOWEST DAILY MEAN | 90 | Oct 25 | 77 | Sep 29 | 10 | Oct 6 1956 |
ANNUAL SEVEN-DAY MINIMUM | 96 | Oct 10 | 84 | Sep 24 | 14 | Aug 2 1934 |
INSTANTANEOUS PEAK FLOW | 19700 | May 10 | 27000 | A | ||
INSTANTANEOUS PEAK STAGE | 15.88 | May 10 | 21.68 B | Mar 7 1979 | ||
INSTANTANEOUS LOW FLOW | 76 | C | 9.0 | D | ||
ANNUAL RUNOFF (CFSM) | 1.00 | 1.39 | .84 | |||
ANNUAL RUNOFF (INCHES) | 13.56 | 18.85 | 11.42 | |||
10 PERCENT EXCEEDS | 5360 | 8480 | 4780 | |||
50 PERCENT EXCEEDS | 893 | 1260 | 735 | |||
90 PERCENT EXCEEDS | 158 | 106 | 79 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |