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 | 37 | 47 | 84 | 62 | 140 | 88 | 440 | 117 | 50 | 59 | 37 | 51 |
2 | 36 | 45 | 65 | 64 | 342 | 80 | 343 | 107 | 49 | 49 | 35 | 45 |
3 | 36 | 45 | 62 | 177 | 277 | 81 | 231 | 97 | 49 | 85 | 37 | 44 |
4 | 43 | 45 | e60 | 352 | 204 | 89 | 182 | 94 | 53 | 614 | 115 | 42 |
5 | 47 | 41 | e58 | 429 | 159 | 90 | 143 | 91 | 51 | 262 | 211 | 39 |
6 | e42 | 61 | 57 | 444 | 131 | 87 | 120 | 114 | 51 | 164 | 268 | 37 |
7 | 41 | 63 | 52 | 465 | 113 | 89 | 115 | 636 | 49 | 184 | 226 | 533 |
8 | 46 | 51 | 52 | 373 | 109 | 197 | 466 | 1420 | 45 | 189 | 276 | 250 |
9 | 47 | 49 | 53 | 347 | 97 | 474 | 547 | 929 | 110 | 119 | 150 | 122 |
10 | 44 | 46 | 60 | 266 | 90 | 351 | 352 | 438 | 102 | 92 | 100 | 82 |
11 | 35 | 44 | e88 | 187 | 206 | 258 | 225 | 272 | 264 | 70 | 74 | 64 |
12 | 34 | 42 | 90 | 152 | 353 | 182 | 172 | 207 | 293 | 61 | 58 | 53 |
13 | 72 | 42 | 74 | 118 | 239 | 147 | 147 | 173 | 146 | 56 | 52 | 50 |
14 | 75 | 41 | 66 | 102 | 191 | 148 | 161 | 141 | 101 | 49 | 51 | 54 |
15 | 51 | 46 | 62 | 92 | 145 | 131 | 146 | 121 | 82 | 47 | 50 | 152 |
16 | 46 | 59 | 59 | 87 | 125 | 123 | 400 | 108 | 68 | 47 | 47 | 93 |
17 | 40 | 55 | 60 | 80 | 178 | 177 | 259 | 86 | 68 | 47 | 46 | 68 |
18 | 40 | 51 | 62 | 73 | 195 | 667 | 188 | 75 | 69 | 45 | 44 | 56 |
19 | 39 | 51 | 63 | 69 | 158 | 771 | 151 | 67 | 154 | 65 | 44 | 51 |
20 | 39 | 52 | 58 | 66 | 138 | 455 | 156 | 63 | 95 | 66 | 44 | 47 |
21 | 37 | 56 | 56 | 63 | 121 | 308 | 381 | 60 | 72 | 54 | 44 | 46 |
22 | 37 | 56 | 57 | 63 | 109 | 222 | 400 | 57 | 57 | 52 | 42 | 41 |
23 | 37 | 56 | 63 | 68 | 98 | 172 | 242 | 55 | 48 | 50 | 41 | 38 |
24 | 40 | 55 | 68 | 68 | 99 | 139 | 181 | 122 | 45 | 44 | 47 | 38 |
25 | 47 | 53 | 91 | 63 | 101 | 119 | 151 | 87 | 43 | 39 | 266 | 44 |
26 | 53 | 54 | 105 | 61 | 88 | 109 | 168 | 70 | 150 | 38 | 212 | 40 |
27 | 224 | 59 | 90 | 66 | 99 | 98 | 173 | 61 | 96 | 40 | 99 | 37 |
28 | 133 | 96 | 75 | 68 | 96 | 109 | 127 | 67 | 104 | 40 | 117 | 36 |
29 | 87 | 87 | 67 | 91 | --- | 104 | 136 | 78 | 97 | 37 | 109 | 36 |
30 | 63 | 107 | 66 | 115 | --- | 88 | 130 | 63 | 75 | 37 | 74 | 52 |
31 | 53 | --- | 62 | 114 | --- | 226 | --- | 57 | --- | 38 | 59 | --- |
TOTAL | 1701 | 1655 | 2085 | 4845 | 4401 | 6379 | 7033 | 6133 | 2736 | 2839 | 3075 | 2341 |
MEAN | 54.9 | 55.2 | 67.3 | 156 | 157 | 206 | 234 | 198 | 91.2 | 91.6 | 99.2 | 78.0 |
MAX | 224 | 107 | 105 | 465 | 353 | 771 | 547 | 1420 | 293 | 614 | 276 | 533 |
MIN | 34 | 41 | 52 | 61 | 88 | 80 | 115 | 55 | 43 | 37 | 35 | 36 |
CFSM | .61 | .61 | .74 | 1.73 | 1.74 | 2.28 | 2.59 | 2.19 | 1.01 | 1.01 | 1.10 | .86 |
IN. | .70 | .68 | .86 | 1.99 | 1.81 | 2.62 | 2.89 | 2.52 | 1.13 | 1.17 | 1.27 | .96 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 59.6 | 93.2 | 98.5 | 83.3 | 109 | 161 | 178 | 135 | 108 | 77.4 | 91.1 | 72.9 |
MAX | 181 | 276 | 354 | 246 | 374 | 588 | 396 | 295 | 300 | 283 | 512 | 261 |
(WY) | 1973 | 1986 | 1983 | 1993 | 1997 | 1979 | 1983 | 1974 | 1996 | 1996 | 1987 | 1972 |
MIN | 12.6 | 16.5 | 15.1 | 12.6 | 21.7 | 56.8 | 42.1 | 39.6 | 27.0 | 18.5 | 17.8 | 14.8 |
(WY) | 1972 | 1977 | 1977 | 1977 | 1972 | 1969 | 1986 | 1988 | 1971 | 1971 | 1971 | 1971 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1969 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 39917 | 45223 | ||||
ANNUAL MEAN | 109 | 124 | 106 | |||
HIGHEST ANNUAL MEAN | 162 | 1993 | ||||
LOWEST ANNUAL MEAN | 35.1 | 1977 | ||||
HIGHEST DAILY MEAN | 2310 | Feb 22 | 1420 | May 8 | 2880 | Aug 15 1987 |
LOWEST DAILY MEAN | 34 | A | 34 | Oct 12 | 7.8 | B |
ANNUAL SEVEN-DAY MINIMUM | 36 | Jul 27 | 37 | Jul 28 | 10 | Oct 20 1971 |
INSTANTANEOUS PEAK FLOW | 1500 | May 8 | 3470 | Jul 18 1996 | ||
INSTANTANEOUS PEAK STAGE | 3.98 | May 8 | 6.41 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | 31 | Oct 12 | ||||
ANNUAL RUNOFF (CFSM) | 1.21 | 1.37 | 1.17 | |||
ANNUAL RUNOFF (INCHES) | 16.43 | 18.61 | 15.87 | |||
10 PERCENT EXCEEDS | 189 | 263 | 224 | |||
50 PERCENT EXCEEDS | 64 | 74 | 60 | |||
90 PERCENT EXCEEDS | 40 | 42 | 26 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |