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 | .31 | .50 | 2.1 | e2.5 | 5.4 | 85 | 226 | 547 | 7.9 | 843 | 25 | 1.4 |
2 | .33 | 1.7 | 3.4 | e2.2 | 4.5 | 45 | 70 | 258 | 6.9 | 70 | 8.6 | 1.4 |
3 | .31 | 2.4 | 2.6 | e2.5 | 3.9 | 26 | 74 | 481 | 5.9 | 29 | 5.7 | 1.7 |
4 | .29 | 1.4 | 2.2 | 2.9 | 3.5 | 21 | 185 | 173 | 130 | 19 | 4.7 | 1.6 |
5 | .26 | 1.1 | 2.5 | 63 | 3.4 | 17 | 89 | 79 | 668 | 16 | 777 | 1.5 |
6 | .21 | 1.4 | 2.8 | 149 | 3.3 | 14 | 45 | 57 | 187 | 29 | 436 | 1.4 |
7 | .20 | 11 | 1.6 | 185 | 3.3 | 12 | 32 | 321 | 44 | 522 | 137 | 1.3 |
8 | .17 | 4.8 | 1.4 | 667 | 3.1 | 358 | 34 | 168 | 23 | 1050 | 74 | 1.3 |
9 | .18 | 2.3 | 1.4 | 505 | 2.7 | 545 | 23 | 57 | 18 | 399 | 48 | 1.2 |
10 | .19 | 1.6 | 1.4 | 76 | 2.5 | 210 | 15 | 38 | 16 | 49 | 23 | 1.2 |
11 | .19 | 1.3 | 1.7 | 36 | 3.0 | 46 | 12 | 28 | 14 | 27 | 48 | 1.1 |
12 | .21 | 1.3 | 2.2 | 20 | 8.9 | 23 | 10 | 22 | 111 | 19 | 101 | 1.1 |
13 | .27 | 1.3 | 1.9 | 13 | 9.3 | 17 | 13 | 17 | 43 | 14 | 12 | 1.1 |
14 | .31 | 1.2 | 1.6 | 10 | 6.8 | 17 | 537 | 15 | 576 | 10 | 5.5 | 1.1 |
15 | .67 | 1.7 | 1.6 | 11 | 4.9 | 15 | 289 | 14 | 636 | 8.8 | 4.1 | 1.1 |
16 | .70 | 2.1 | 1.5 | 12 | 27 | 13 | 3350 | 12 | 74 | 7.8 | 3.5 | 1.3 |
17 | .50 | 2.2 | 1.4 | 9.4 | 421 | 63 | 884 | 11 | 36 | 7.7 | 3.2 | 1.4 |
18 | .37 | 1.9 | 1.2 | 8.0 | 837 | 919 | 81 | 9.9 | 20 | 7.2 | 3.1 | 1.8 |
19 | .32 | 1.6 | 1.1 | 6.5 | 197 | 591 | 48 | 9.6 | 122 | 6.5 | 3.2 | 1.6 |
20 | .38 | 1.6 | 1.1 | 5.8 | 99 | 1230 | 39 | 7.9 | 85 | 5.9 | 3.1 | 1.9 |
21 | .41 | 1.7 | 1.2 | 5.0 | 86 | 1070 | 32 | 30 | 953 | 5.1 | 2.7 | 1.6 |
22 | .40 | 1.8 | 1.8 | 5.0 | 49 | 161 | 34 | 377 | 1280 | 4.6 | 2.3 | 1.2 |
23 | .38 | 2.0 | 8.7 | 5.9 | 32 | 61 | 133 | 409 | 156 | 4.7 | 2.2 | 1.3 |
24 | .69 | 1.9 | 16 | 8.0 | 22 | 40 | 47 | 78 | 43 | 6.1 | 2.0 | 1.4 |
25 | 4.2 | 1.9 | 148 | 8.3 | 16 | 28 | 31 | 39 | 23 | 4.9 | 1.8 | 1.8 |
26 | 2.4 | 1.8 | 51 | 11 | 13 | 22 | 26 | 40 | 14 | 4.5 | 1.8 | 75 |
27 | 5.1 | 1.8 | 12 | 23 | 344 | 25 | 184 | 27 | 10 | 13 | 1.6 | 12 |
28 | 2.0 | 1.9 | 5.8 | 32 | 144 | 1030 | 264 | 22 | 8.9 | 7.1 | 1.6 | 3.4 |
29 | .91 | 2.4 | 4.3 | 18 | --- | 700 | 360 | 14 | 23 | 5.0 | 1.4 | 2.5 |
30 | .64 | 2.4 | e2.7 | 10 | --- | 82 | 685 | 11 | 1250 | 55 | 1.4 | 2.2 |
31 | .50 | --- | e2.8 | 7.1 | --- | 103 | --- | 9.5 | --- | 141 | 1.4 | --- |
TOTAL | 24.00 | 64.00 | 291.0 | 1920.1 | 2355.5 | 7589 | 7852 | 3381.9 | 6584.6 | 3390.9 | 1745.9 | 129.9 |
MEAN | .77 | 2.13 | 9.39 | 61.9 | 84.1 | 245 | 262 | 109 | 219 | 109 | 56.3 | 4.33 |
MAX | 5.1 | 11 | 148 | 667 | 837 | 1230 | 3350 | 547 | 1280 | 1050 | 777 | 75 |
MIN | .17 | .50 | 1.1 | 2.2 | 2.5 | 12 | 10 | 7.9 | 5.9 | 4.5 | 1.4 | 1.1 |
CFSM | .01 | .03 | .11 | .73 | 1.00 | 2.90 | 3.10 | 1.29 | 2.60 | 1.30 | .67 | .05 |
IN. | .01 | .03 | .13 | .85 | 1.04 | 3.35 | 3.46 | 1.49 | 2.91 | 1.50 | .77 | .06 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1968 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 24.0 | 84.6 | 96.6 | 90.4 | 112 | 145 | 145 | 86.9 | 50.0 | 41.0 | 9.78 | 15.8 |
MAX | 143 | 600 | 485 | 244 | 407 | 381 | 542 | 910 | 219 | 413 | 56.3 | 254 |
(WY) | 1970 | 1986 | 1983 | 1969 | 1982 | 1979 | 1996 | 1995 | 1998 | 1969 | 1998 | 1993 |
MIN | .17 | .19 | .52 | .084 | 1.59 | 1.25 | 1.48 | 1.43 | .34 | .61 | .038 | .17 |
(WY) | 1969 | 1981 | 1990 | 1977 | 1978 | 1981 | 1981 | 1976 | 1988 | 1984 | 1984 | 1985 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1968 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 21162.55 | 35328.80 | ||||
ANNUAL MEAN | 58.0 | 96.8 | 74.8 | |||
HIGHEST ANNUAL MEAN | 132 | 1985 | ||||
LOWEST ANNUAL MEAN | 8.83 | 1976 | ||||
HIGHEST DAILY MEAN | 2230 | Jan 28 | 3350 | Apr 16 | 8070 | May 17 1995 |
LOWEST DAILY MEAN | .17 | Oct 8 | .17 | Oct 8 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | .19 | Oct 6 | .19 | Oct 6 | .00 | Nov 22 1967 |
INSTANTANEOUS PEAK FLOW | 4880 | Apr 16 | 11900 | May 17 1995 | ||
INSTANTANEOUS PEAK STAGE | 19.03 | Apr 16 | 21.76 | May 17 1995 | ||
INSTANTANEOUS LOW FLOW | .17 | Oct 7-9 | ||||
ANNUAL RUNOFF (CFSM) | .69 | 1.15 | .89 | |||
ANNUAL RUNOFF (INCHES) | 9.34 | 15.59 | 12.06 | |||
10 PERCENT EXCEEDS | 101 | 274 | 127 | |||
50 PERCENT EXCEEDS | 4.0 | 9.3 | 4.7 | |||
90 PERCENT EXCEEDS | .42 | 1.2 | .30 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |