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 | 16 | 218 | 176 | e105 | 264 | 114 | 77 | 372 | 171 | 470 | 32 | 13 |
2 | 18 | 261 | 164 | e100 | 372 | 110 | 75 | 306 | 226 | 228 | 30 | 12 |
3 | 21 | 403 | 161 | e97 | 469 | 111 | 139 | 267 | 203 | 185 | 28 | 12 |
4 | 20 | 362 | 156 | e92 | 352 | 101 | 376 | 249 | 196 | 165 | 26 | 11 |
5 | 285 | 291 | 150 | e110 | 263 | 100 | 170 | 241 | 326 | 153 | 24 | 11 |
6 | 567 | 258 | 204 | e102 | 238 | 114 | 193 | 226 | 316 | 143 | 23 | 10 |
7 | 257 | 239 | 765 | e95 | 225 | 100 | 165 | 214 | 362 | 135 | 36 | 9.9 |
8 | 163 | 238 | 480 | e90 | 213 | 98 | 146 | 202 | 272 | 127 | 34 | 9.6 |
9 | 120 | 253 | 333 | e85 | 204 | e96 | 381 | 190 | 591 | 121 | 27 | 9.3 |
10 | 96 | 2760 | 264 | e81 | 191 | e110 | 315 | 181 | 341 | 113 | 23 | 9.3 |
11 | 82 | 4210 | 239 | e77 | 206 | e105 | 226 | 174 | 375 | 105 | 21 | 9.1 |
12 | 71 | 1110 | 223 | e74 | 292 | 100 | 198 | 189 | 449 | 99 | 67 | 9.2 |
13 | 63 | 625 | 210 | e71 | 214 | 106 | 178 | 768 | 988 | 94 | 71 | 9.3 |
14 | 59 | 501 | 198 | e70 | 197 | 108 | 167 | 1430 | 1790 | 88 | 39 | 8.9 |
15 | 69 | 425 | 187 | e69 | 188 | 115 | 177 | 556 | 1030 | 82 | 29 | 8.6 |
16 | 62 | 371 | 180 | e68 | 178 | 135 | 998 | 386 | 385 | 77 | 24 | 8.5 |
17 | 2520 | 318 | 174 | e67 | 165 | 177 | 815 | 347 | 327 | 72 | 20 | 8.4 |
18 | 7030 | 277 | 169 | e66 | 155 | 198 | 453 | 339 | 290 | 68 | 19 | 8.3 |
19 | 5400 | 260 | 160 | e66 | 147 | 164 | 347 | 258 | 264 | 73 | 20 | 9.6 |
20 | 1320 | 243 | 150 | e66 | 139 | 146 | 283 | 236 | 239 | 109 | 19 | 12 |
21 | 569 | 229 | 142 | e76 | 130 | 137 | 256 | 226 | 224 | 88 | 17 | 8.7 |
22 | 433 | 222 | e105 | e300 | 124 | 128 | 245 | 331 | 214 | 60 | 16 | 8.1 |
23 | 358 | 214 | e115 | e1250 | 126 | 120 | 2190 | 357 | 206 | 53 | 16 | 7.9 |
24 | 302 | 203 | e120 | e1200 | 124 | 114 | 1500 | 255 | 199 | 49 | 80 | 7.6 |
25 | 266 | 197 | e125 | 609 | 121 | 106 | 512 | 228 | 185 | 46 | 61 | 7.5 |
26 | 247 | 191 | 129 | 371 | 119 | 97 | 401 | 210 | 174 | 44 | 31 | 7.5 |
27 | 240 | 181 | 127 | 388 | 123 | 94 | 364 | 196 | 177 | 42 | 22 | 12 |
28 | 264 | 175 | 122 | 942 | 125 | 97 | 521 | 184 | 221 | 55 | 18 | 330 |
29 | 263 | 173 | e105 | 528 | --- | 94 | 906 | 173 | 173 | 57 | 16 | 244 |
30 | 245 | 179 | e66 | 326 | --- | 84 | 499 | 165 | 167 | 40 | 14 | 93 |
31 | 226 | --- | e75 | 273 | --- | 80 | --- | 160 | --- | 35 | 14 | --- |
TOTAL | 21652 | 15587 | 5974 | 7914 | 5664 | 3559 | 13273 | 9616 | 11081 | 3276 | 917 | 925.3 |
MEAN | 698 | 520 | 193 | 255 | 202 | 115 | 442 | 310 | 369 | 106 | 29.6 | 30.8 |
MAX | 7030 | 4210 | 765 | 1250 | 469 | 198 | 2190 | 1430 | 1790 | 470 | 80 | 330 |
MIN | 16 | 173 | 66 | 66 | 119 | 80 | 75 | 160 | 167 | 35 | 14 | 7.5 |
CFSM | 4.01 | 2.99 | 1.11 | 1.47 | 1.16 | .66 | 2.54 | 1.78 | 2.12 | .61 | .17 | .18 |
IN. | 4.63 | 3.33 | 1.28 | 1.69 | 1.21 | .76 | 2.84 | 2.06 | 2.37 | .70 | .20 | .20 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 57.3 | 69.1 | 75.0 | 94.7 | 156 | 180 | 200 | 183 | 179 | 123 | 65.6 | 55.7 |
MAX | 698 | 520 | 576 | 461 | 585 | 640 | 822 | 717 | 1020 | 1303 | 693 | 471 |
(WY) | 1999 | 1999 | 1983 | 1974 | 1986 | 1993 | 1973 | 1996 | 1990 | 1982 | 1993 | 1980 |
MIN | 2.40 | 2.96 | 2.63 | 2.74 | 5.29 | 19.1 | 11.4 | 7.68 | 10.9 | 1.24 | 2.75 | 1.82 |
(WY) | 1964 | 1957 | 1965 | 1977 | 1964 | 1956 | 1956 | 1989 | 1936 | 1989 | 1989 | 1988 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1935 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 111895.8 | 99438.3 | ||||
ANNUAL MEAN | 307 | 272 | 121 | |||
HIGHEST ANNUAL MEAN | 399 | 1993 | ||||
LOWEST ANNUAL MEAN | 25.8 | 1940 | ||||
HIGHEST DAILY MEAN | 7030 | Oct 18 | 7030 | Oct 18 | 7030 | Oct 18 1998 |
LOWEST DAILY MEAN | 9.8 | Sep 12 | 7.5 | Sep 25, 26 | .53 | Aug 6 1989 |
ANNUAL SEVEN-DAY MINIMUM | 10 | Sep 7 | 8.5 | Sep 20 | .78 | Aug 1 1989 |
INSTANTANEOUS PEAK FLOW | 8290 | Oct 18 | 8900 A | Apr 22 1973 | ||
INSTANTANEOUS PEAK STAGE | 28.68 | Oct 18 | 29.08 B | Jul 24 1993 | ||
INSTANTANEOUS LOW FLOW | 7.3 | Sep 24-26 | ||||
ANNUAL RUNOFF (CFSM) | 1.76 | 1.57 | .70 | |||
ANNUAL RUNOFF (INCHES) | 23.92 | 21.26 | 9.46 | |||
10 PERCENT EXCEEDS | 570 | 451 | 261 | |||
50 PERCENT EXCEEDS | 192 | 165 | 47 | |||
90 PERCENT EXCEEDS | 23 | 19 | 6.6 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |