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 | 27 | 107 | 87 | 55 | 1070 | 181 | 127 | 912 | 133 | 153 | 29 | 24 |
2 | 28 | 105 | 86 | 50 | 1060 | 167 | 120 | 766 | 242 | 141 | 30 | 38 |
3 | 42 | 93 | 85 | 56 | 1050 | 182 | 115 | 651 | 236 | 127 | 29 | 31 |
4 | 34 | 89 | 82 | 58 | 1010 | 194 | 118 | 559 | 248 | 112 | 27 | 30 |
5 | 68 | 82 | 79 | 56 | 939 | 186 | 123 | 488 | 251 | 100 | 32 | 30 |
6 | 59 | 75 | 109 | 57 | 872 | 182 | 131 | 437 | 245 | 88 | 20 | 29 |
7 | 68 | 70 | 206 | 57 | 802 | 164 | 129 | 380 | 229 | 72 | 30 | 29 |
8 | 62 | 69 | 226 | 57 | 739 | 155 | 130 | 325 | 188 | 62 | 37 | 28 |
9 | 56 | 68 | 225 | 58 | 681 | 135 | 287 | 278 | 156 | 57 | 29 | 28 |
10 | 49 | 208 | 216 | 59 | 631 | 127 | 354 | 242 | 150 | 52 | 15 | 28 |
11 | 43 | 257 | 204 | 58 | 610 | 173 | 374 | 214 | 137 | 49 | 24 | 28 |
12 | 39 | 284 | 185 | 58 | 676 | 168 | 372 | 214 | 125 | 37 | 48 | 30 |
13 | 36 | 274 | 165 | 58 | 670 | 166 | 365 | 199 | 367 | 48 | 33 | 32 |
14 | 34 | 262 | 148 | 58 | 629 | 163 | 358 | 184 | 616 | 39 | 31 | 29 |
15 | 31 | 255 | 134 | 59 | 584 | 168 | 360 | 171 | 716 | 36 | 29 | 28 |
16 | 30 | 246 | 126 | 60 | 544 | 195 | 574 | 162 | 681 | 36 | 21 | 28 |
17 | 91 | 229 | 120 | 64 | 512 | 310 | 658 | 225 | 648 | 39 | 35 | 27 |
18 | 203 | 212 | 121 | 74 | 481 | 393 | 638 | 285 | 623 | 42 | 23 | 28 |
19 | 184 | 183 | 121 | 78 | 447 | 423 | 575 | 311 | 598 | 39 | 54 | 28 |
20 | 164 | 149 | 116 | 77 | 410 | 419 | 523 | 299 | 568 | 36 | 35 | 30 |
21 | 148 | 127 | 111 | 79 | 369 | 405 | 498 | 279 | 528 | 35 | 32 | 30 |
22 | 137 | 114 | 89 | 310 | 324 | 393 | 642 | 288 | 478 | 36 | 31 | 28 |
23 | 114 | 105 | 93 | 531 | 268 | 356 | 1230 | 264 | 423 | 41 | 33 | 27 |
24 | 100 | 98 | 84 | 716 | 223 | 342 | 1450 | 241 | 361 | 47 | 41 | 28 |
25 | 89 | 92 | 73 | 810 | 189 | 290 | 1450 | 219 | 284 | 42 | 52 | 28 |
26 | 79 | 87 | 68 | 811 | 175 | 236 | 1450 | 196 | 201 | 38 | 44 | 27 |
27 | 72 | 83 | 65 | 866 | 180 | 197 | 1440 | 176 | 155 | 27 | 38 | 35 |
28 | 74 | 76 | 64 | 968 | 182 | 170 | 1400 | 160 | 168 | 37 | 36 | 177 |
29 | 75 | 81 | 61 | 1050 | --- | 157 | 1260 | 146 | 194 | 34 | 34 | 174 |
30 | 140 | 79 | 57 | 1100 | --- | 145 | 1080 | 131 | 170 | 32 | 33 | 155 |
31 | 109 | --- | 59 | 1100 | --- | 134 | --- | 126 | --- | 30 | 32 | --- |
TOTAL | 2485 | 4259 | 3665 | 9548 | 16327 | 7076 | 18331 | 9528 | 10119 | 1764 | 1017 | 1292 |
MEAN | 80.2 | 142 | 118 | 308 | 583 | 228 | 611 | 307 | 337 | 56.9 | 32.8 | 43.1 |
MAX | 203 | 284 | 226 | 1100 | 1070 | 423 | 1450 | 912 | 716 | 153 | 54 | 177 |
MIN | 27 | 68 | 57 | 50 | 175 | 127 | 115 | 126 | 125 | 27 | 15 | 24 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 128 | 186 | 248 | 175 | 254 | 454 | 513 | 291 | 185 | 152 | 134 | 135 |
MAX | 1011 | 785 | 865 | 514 | 583 | 1510 | 1395 | 847 | 738 | 599 | 648 | 756 |
(WY) | 1987 | 1986 | 1983 | 1993 | 1999 | 1979 | 1993 | 1996 | 1996 | 1993 | 1978 | 1986 |
MIN | 16.6 | 16.5 | 12.7 | 10.6 | 11.9 | 61.8 | 79.9 | 31.3 | 23.1 | 23.9 | 15.0 | 18.3 |
(WY) | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 | 1977 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1977 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 93562 | 85411 | ||||
ANNUAL MEAN | 256 | 234 | 238 | |||
HIGHEST ANNUAL MEAN | 428 | 1993 | ||||
LOWEST ANNUAL MEAN | 26.8 | 1977 | ||||
HIGHEST DAILY MEAN | 1170 | Apr 17 | 1450 | Apr 24-26 | 3470 | Sep 27 1986 |
LOWEST DAILY MEAN | 26 | A | 15 B | Aug 10 | 7.5 | Feb 6 1977 |
ANNUAL SEVEN-DAY MINIMUM | 27 | Jul 29 | 27 | Aug 5 | 7.9 | Jan 31 1977 |
INSTANTANEOUS PEAK FLOW | 1470 | Apr 24 | 3530 | Sep 27 1986 | ||
INSTANTANEOUS PEAK STAGE | 8.48 | Apr 24 | 11.95 | Sep 27 1986 | ||
INSTANTANEOUS LOW FLOW | 7.4 B | Aug 10 | ||||
10 PERCENT EXCEEDS | 661 | 634 | 577 | |||
50 PERCENT EXCEEDS | 148 | 129 | 124 | |||
90 PERCENT EXCEEDS | 32 | 30 | 42 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |