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 | 8.9 | 6.6 | 9.6 | 37 | 94 | 1010 | 6530 | 7680 | 176 | 1330 | 4900 | 35 |
2 | 8.2 | 6.3 | 11 | 21 | 84 | 633 | 6960 | 7000 | 194 | 1460 | 1930 | 34 |
3 | 7.2 | 7.3 | 11 | 18 | 74 | 472 | 4860 | 5170 | 176 | 711 | 445 | 33 |
4 | 6.9 | 8.0 | 11 | 17 | 65 | 327 | 3010 | 7140 | 140 | 348 | 2590 | 33 |
5 | 6.6 | 7.6 | 17 | 94 | 59 | 262 | 3760 | 9160 | 444 | 229 | 2930 | 32 |
6 | 6.5 | 8.4 | 18 | 763 | 56 | 276 | 3980 | 8010 | 1050 | 171 | 4910 | 34 |
7 | 6.7 | 7.9 | 15 | 1200 | 53 | 311 | 2700 | 7670 | 617 | 1020 | 5080 | 31 |
8 | 6.5 | 7.5 | 14 | 2800 | 51 | 336 | 1320 | 9810 | 316 | 5330 | 4220 | 29 |
9 | 6.3 | 8.6 | 14 | 3540 | 48 | 1530 | 1990 | 11000 | 1880 | 6930 | 3280 | 27 |
10 | 6.4 | 9.3 | 13 | 2400 | 45 | 3150 | 2060 | 8740 | 3650 | 6160 | 1870 | 26 |
11 | 6.9 | 14 | 12 | 1020 | 48 | 3410 | 1000 | 6870 | 2660 | 5020 | 1140 | 24 |
12 | 6.4 | 13 | 12 | 399 | 61 | 1990 | 590 | 4230 | 4470 | 2570 | 730 | 22 |
13 | 6.2 | 12 | 11 | 229 | 68 | 736 | 461 | 1460 | 6380 | 991 | 415 | 22 |
14 | 8.0 | 13 | 11 | 157 | 70 | 437 | 763 | 567 | 7080 | 365 | 317 | 21 |
15 | 12 | 11 | 11 | 176 | 76 | 359 | 888 | 396 | 7490 | 235 | 212 | 20 |
16 | 10 | 9.1 | 11 | 155 | 133 | 312 | 4930 | 320 | 6870 | 191 | 155 | e21 |
17 | 8.6 | 8.1 | 12 | 129 | 1040 | 348 | 7620 | 266 | 4960 | 208 | 125 | e23 |
18 | 7.3 | 7.6 | 11 | 121 | 3480 | 2460 | 7070 | 228 | 2340 | 152 | 107 | e25 |
19 | 6.5 | 7.2 | 11 | 112 | 4360 | 5250 | 6220 | 197 | 2060 | 124 | 94 | e28 |
20 | 7.8 | 6.7 | 9.8 | 96 | 3290 | 6240 | 6290 | 182 | 4000 | 105 | 84 | 34 |
21 | 7.8 | 6.8 | 8.6 | 81 | 1810 | 8130 | 4140 | 200 | 3200 | 95 | 76 | 49 |
22 | 6.8 | 7.4 | 10 | 78 | 934 | 8720 | 1390 | 1620 | 2620 | 90 | 70 | 52 |
23 | 6.2 | 6.8 | 12 | 313 | 542 | 7560 | 602 | 6440 | 5190 | 1160 | 64 | 43 |
24 | 6.2 | 6.2 | 41 | 327 | 369 | 8120 | 465 | 7730 | 3640 | 4080 | 60 | 38 |
25 | 5.9 | 6.7 | 222 | 263 | 272 | 8770 | 386 | 7300 | 2360 | 4480 | 56 | 68 |
26 | 6.4 | 8.2 | 172 | 216 | 217 | 6350 | 330 | 5460 | 1420 | 4520 | 53 | 265 |
27 | 6.0 | 8.5 | 105 | 216 | 251 | 2380 | 289 | 1950 | 611 | 2300 | 48 | 260 |
28 | 5.7 | 7.9 | 104 | 183 | 805 | 2520 | 265 | 563 | 360 | 488 | 44 | 106 |
29 | 5.6 | 8.2 | 65 | 157 | --- | 5160 | 244 | 320 | 270 | 220 | 42 | 61 |
30 | 5.6 | 9.2 | 45 | 138 | --- | 5400 | 4570 | 249 | 722 | 1380 | e39 | 49 |
31 | 5.9 | --- | 33 | 115 | --- | 5510 | --- | 203 | --- | 5310 | 37 | --- |
TOTAL | 218.0 | 255.1 | 1063.0 | 15571 | 18455 | 98469 | 85683 | 128131 | 77346 | 57773 | 36123 | 1545 |
MEAN | 7.03 | 8.50 | 34.3 | 502 | 659 | 3176 | 2856 | 4133 | 2578 | 1864 | 1165 | 51.5 |
MAX | 12 | 14 | 222 | 3540 | 4360 | 8770 | 7620 | 11000 | 7490 | 6930 | 5080 | 265 |
MIN | 5.6 | 6.2 | 8.6 | 17 | 45 | 262 | 244 | 182 | 140 | 90 | 37 | 20 |
CFSM | .01 | .01 | .03 | .44 | .58 | 2.81 | 2.53 | 3.65 | 2.28 | 1.65 | 1.03 | .05 |
IN. | .01 | .01 | .03 | .51 | .61 | 3.24 | 2.82 | 4.21 | 2.54 | 1.90 | 1.19 | .05 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 203 | 580 | 1037 | 1360 | 1489 | 1750 | 1667 | 1395 | 773 | 432 | 309 | 208 |
MAX | 2146 | 5462 | 7882 | 9030 | 6833 | 5425 | 6267 | 10150 | 4271 | 2644 | 5794 | 2569 |
(WY) | 1950 | 1986 | 1968 | 1950 | 1982 | 1978 | 1922 | 1943 | 1945 | 1993 | 1915 | 1993 |
MIN | .30 | 1.07 | 1.73 | 6.90 | 12.6 | 4.92 | 56.9 | 45.1 | 14.4 | 9.75 | 4.17 | .79 |
(WY) | 1954 | 1954 | 1954 | 1977 | 1963 | 1954 | 1954 | 1925 | 1988 | 1930 | 1964 | 1953 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1914 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 302991.8 | 520632.1 | ||||
ANNUAL MEAN | 830 | 1426 | 931 | |||
HIGHEST ANNUAL MEAN | 2040 | 1950 | ||||
LOWEST ANNUAL MEAN | 29.3 | 1954 | ||||
HIGHEST DAILY MEAN | 13900 | Mar 2 | 11000 | May 9 | 43200 | May 10 1961 |
LOWEST DAILY MEAN | 5.6 | Oct 29,30 | 5.6 | Oct 29,30 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | 5.9 | Oct 25 | 5.9 | Oct 25 | .00 | Sep 3 1954 |
INSTANTANEOUS PEAK FLOW | 11400 | May 9 | 47000 | Jan 5 1950 | ||
INSTANTANEOUS PEAK STAGE | 20.83 | May 9 | 26.67 | Jan 5 1950 | ||
INSTANTANEOUS LOW FLOW | 4.6 | Oct 12 | ||||
ANNUAL RUNOFF (CFSM) | .73 | 1.26 | .82 | |||
ANNUAL RUNOFF (INCHES) | 9.97 | 17.12 | 11.18 | |||
10 PERCENT EXCEEDS | 2500 | 5320 | 2920 | |||
50 PERCENT EXCEEDS | 114 | 200 | 147 | |||
90 PERCENT EXCEEDS | 7.7 | 7.7 | 10 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |