DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 7.5 | 19 | 21 | e8.5 | 1430 | 79 | 50 | 116 | 44 | 117 | 6.0 | 3.3 |
2 | 6.9 | 158 | 19 | e9.0 | 424 | 72 | 49 | 90 | 87 | 70 | 5.3 | 3.6 |
3 | 7.3 | 607 | 20 | e10 | 241 | 74 | 67 | 75 | 63 | 36 | 5.2 | 3.4 |
4 | 7.9 | 194 | 20 | e15 | 158 | 69 | 197 | 69 | 38 | 25 | 4.8 | 3.1 |
5 | 8.5 | 89 | 21 | e18 | 114 | 64 | 138 | 157 | 188 | 20 | 4.3 | 3.2 |
6 | 16 | 57 | 22 | e18 | 100 | 67 | 347 | 161 | 90 | 21 | 4.3 | 3.3 |
7 | 19 | 43 | 25 | e15 | 5410 | 57 | 172 | 136 | 43 | 40 | 4.9 | 3.0 |
8 | 14 | 37 | 26 | e13 | 5040 | 81 | 122 | 85 | 28 | 18 | 10 | 2.5 |
9 | 12 | 36 | 22 | e12 | 674 | 258 | 432 | 65 | 24 | 79 | 5.4 | 2.4 |
10 | 9.9 | 232 | 19 | e12 | 307 | 260 | 227 | 56 | 20 | 100 | 6.9 | 2.1 |
11 | 8.9 | 253 | 18 | e13 | 337 | 169 | 145 | 50 | 25 | 36 | 5.7 | 2.4 |
12 | 8.7 | 102 | 18 | e14 | 563 | 126 | 112 | 118 | 24 | 22 | 5.0 | 3.6 |
13 | 8.1 | 66 | 18 | e16 | 252 | 101 | 88 | 926 | 1010 | 15 | 5.5 | 4.6 |
14 | 7.3 | 53 | 18 | e20 | 178 | 88 | 81 | 280 | 922 | 12 | 5.1 | 3.9 |
15 | 6.7 | 44 | 17 | e24 | 155 | 74 | 274 | 154 | 184 | 11 | 4.7 | 3.6 |
16 | 6.5 | 38 | 17 | e30 | 147 | 67 | 502 | 132 | 93 | 9.9 | 3.8 | 3.7 |
17 | 8.2 | 33 | 17 | e45 | 141 | 63 | 304 | 102 | 62 | 9.4 | 3.8 | 3.1 |
18 | 16 | 30 | 17 | 536 | 123 | 58 | 194 | 83 | 47 | 8.9 | 3.5 | 3.1 |
19 | 30 | 28 | 19 | 484 | 109 | 52 | 151 | 65 | 37 | 8.8 | 3.4 | 3.2 |
20 | 17 | 29 | 19 | 320 | 97 | 51 | 121 | 54 | 31 | 8.4 | 3.3 | 3.4 |
21 | 12 | 26 | 21 | 378 | 86 | 50 | 116 | 48 | 27 | 7.5 | 3.4 | 3.1 |
22 | 9.7 | 23 | 28 | 1530 | 78 | 50 | 107 | 56 | 24 | 7.1 | 3.5 | 3.3 |
23 | 8.4 | 22 | 20 | 1360 | 79 | 228 | 88 | 50 | 23 | 6.8 | 3.5 | 2.8 |
24 | 7.7 | 21 | 18 | 881 | 83 | 138 | 76 | 42 | 29 | 6.5 | 15 | 2.6 |
25 | 7.8 | 21 | 16 | 322 | 85 | 90 | 74 | 37 | 25 | 5.7 | 15 | 3.0 |
26 | 7.9 | 21 | e14 | 200 | 80 | 70 | 119 | 32 | 274 | 5.2 | 8.4 | 3.5 |
27 | 8.7 | 20 | e13 | 164 | 94 | 62 | 177 | 29 | 170 | 11 | 7.2 | 3.6 |
28 | 8.8 | 19 | e12 | 143 | 95 | 58 | 262 | 26 | 71 | 12 | 5.9 | 3.4 |
29 | 13 | 19 | e10 | 113 | --- | 56 | 404 | 24 | 45 | 9.0 | 5.2 | 5.5 |
30 | 12 | 21 | e9.5 | 93 | --- | 52 | 192 | 22 | 32 | 8.2 | 5.0 | 4.9 |
31 | 16 | --- | e9.0 | 1200 | --- | 49 | --- | 32 | --- | 6.9 | 3.6 | --- |
TOTAL | 338.4 | 2361 | 563.5 | 8016.5 | 16680 | 2833 | 5388 | 3372 | 3780 | 753.3 | 176.6 | 100.2 |
MEAN | 10.9 | 78.7 | 18.2 | 259 | 596 | 91.4 | 180 | 109 | 126 | 24.3 | 5.70 | 3.34 |
MAX | 30 | 607 | 28 | 1530 | 5410 | 260 | 502 | 926 | 1010 | 117 | 15 | 5.5 |
MIN | 6.5 | 19 | 9.0 | 8.5 | 78 | 49 | 49 | 22 | 20 | 5.2 | 3.3 | 2.1 |
CFSM | .05 | .37 | .09 | 1.22 | 2.81 | .43 | .85 | .51 | .59 | .11 | .03 | .02 |
IN. | .06 | .41 | .10 | 1.41 | 2.93 | .50 | .95 | .59 | .66 | .13 | .03 | .02 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 41.0 | 103 | 178 | 168 | 226 | 304 | 338 | 204 | 130 | 45.5 | 26.5 | 41.6 |
MAX | 366 | 649 | 915 | 834 | 782 | 1120 | 1251 | 1006 | 562 | 206 | 104 | 486 |
(WY) | 1970 | 1986 | 1983 | 1974 | 1985 | 1978 | 1994 | 1990 | 1998 | 1981 | 1998 | 1993 |
MIN | .82 | 1.05 | 1.08 | 1.21 | 19.7 | 14.1 | 38.2 | 15.0 | 2.04 | 1.18 | 1.05 | .15 |
(WY) | 1996 | 1981 | 1990 | 1977 | 1980 | 1981 | 1976 | 1988 | 1988 | 1988 | 1991 | 1988 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1969 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 66431.3 | 44362.5 | ||||
ANNUAL MEAN | 182 | 122 | 150 | |||
HIGHEST ANNUAL MEAN | 297 | 1985 | ||||
LOWEST ANNUAL MEAN | 32.4 | 1980 | ||||
HIGHEST DAILY MEAN | 3910 | Mar 20 | 5410 | Feb 7 | 7680 | Apr 12 1979 |
LOWEST DAILY MEAN | 6.5 | Oct 16 | 2.1 | Sep 10 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | 7.8 | Oct 11 | 2.7 | Sep 5 | .00 | Aug 29 1987 |
INSTANTANEOUS PEAK FLOW | 6600 | Feb 7 | 8200 | Apr 12 1979 | ||
INSTANTANEOUS PEAK STAGE | 20.54 | Feb 7 | 24.74 | Apr 12 1979 | ||
INSTANTANEOUS LOW FLOW | 1.9 | Sep 9,10,11 | ||||
ANNUAL RUNOFF (CFSM) | .86 | .57 | .71 | |||
ANNUAL RUNOFF (INCHES) | 11.66 | 7.78 | 9.60 | |||
10 PERCENT EXCEEDS | 422 | 230 | 274 | |||
50 PERCENT EXCEEDS | 47 | 28 | 26 | |||
90 PERCENT EXCEEDS | 9.6 | 4.1 | 2.0 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |