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 | 18 | 73 | 155 | 106 | 248 | 252 | 631 | 1110 | 103 | 268 | 35 | 17 |
2 | 18 | 68 | 134 | 114 | 424 | 222 | 434 | 516 | 102 | 210 | 34 | 16 |
3 | 17 | 64 | 130 | 498 | 308 | 205 | 343 | 378 | 93 | 181 | 32 | 15 |
4 | 17 | 58 | 129 | 711 | 257 | 187 | 292 | 312 | 92 | 209 | 36 | 14 |
5 | 16 | 56 | 116 | 680 | 218 | 173 | 260 | 272 | 88 | 160 | 35 | 14 |
6 | 16 | 124 | 107 | 597 | 191 | 166 | 241 | 394 | 83 | 174 | 31 | 13 |
7 | 15 | 147 | 99 | 1040 | 177 | 159 | 229 | 738 | 79 | 168 | 29 | 13 |
8 | 15 | 122 | 94 | 608 | 166 | 522 | 438 | 625 | 79 | 183 | 31 | 12 |
9 | 16 | 105 | 93 | 464 | 156 | 634 | 732 | 427 | 195 | 134 | 28 | 12 |
10 | 17 | 93 | e89 | 372 | 152 | 379 | 489 | 344 | 169 | 120 | 27 | 12 |
11 | 15 | 84 | e83 | 309 | 643 | 299 | 368 | 296 | 436 | 106 | 25 | 12 |
12 | 15 | 79 | 79 | 275 | 831 | 252 | 312 | 269 | 421 | 97 | 24 | 11 |
13 | 17 | 75 | e72 | 234 | 449 | 241 | 435 | 241 | 269 | 89 | 23 | 11 |
14 | 17 | 72 | e80 | 241 | 336 | 233 | 560 | 220 | 271 | 82 | 22 | 30 |
15 | 16 | 68 | 79 | 205 | 288 | 210 | 443 | 210 | 491 | 75 | 21 | 32 |
16 | 15 | 63 | 75 | 190 | 259 | 198 | 574 | 201 | 669 | 70 | 20 | 19 |
17 | 15 | 59 | 75 | 178 | 249 | 617 | 409 | 180 | 450 | 64 | 68 | 16 |
18 | 15 | 61 | 74 | 163 | 226 | 1830 | 330 | 173 | 421 | 61 | 483 | 15 |
19 | 15 | 58 | 76 | 164 | 203 | 1010 | 293 | 166 | 898 | 58 | 69 | 14 |
20 | 15 | 56 | 78 | 152 | 193 | 613 | 269 | 164 | 405 | 53 | 40 | 15 |
21 | 15 | 55 | 78 | 146 | 182 | 440 | 262 | 157 | 339 | 50 | 31 | 24 |
22 | 15 | 53 | 83 | 137 | 174 | 352 | 255 | 157 | 281 | 323 | 27 | 17 |
23 | 16 | 51 | 85 | 133 | 170 | 300 | 233 | 148 | 246 | 113 | 25 | 15 |
24 | 22 | 48 | 95 | 128 | 168 | 260 | 217 | 184 | 223 | 72 | 23 | 15 |
25 | 22 | 48 | 113 | 122 | 158 | 245 | 207 | 164 | 202 | 61 | 22 | 15 |
26 | 22 | 48 | 109 | 119 | 161 | 235 | 210 | 150 | 184 | 55 | 20 | 14 |
27 | 40 | 46 | 108 | 114 | 468 | 217 | 184 | 140 | 170 | 50 | 20 | 13 |
28 | 57 | 170 | 116 | 117 | 322 | 228 | 173 | 133 | 182 | 47 | 23 | 12 |
29 | 87 | 201 | 105 | 135 | --- | 206 | 179 | 129 | 259 | 43 | 22 | 14 |
30 | 86 | 187 | 99 | 160 | --- | 198 | 518 | 122 | 572 | 39 | 20 | 17 |
31 | 78 | --- | 90 | 156 | --- | 545 | --- | 117 | --- | 37 | 18 | --- |
TOTAL | 780 | 2492 | 2998 | 8768 | 7777 | 11628 | 10520 | 8837 | 8472 | 3452 | 1364 | 469 |
MEAN | 25.2 | 83.1 | 96.7 | 283 | 278 | 375 | 351 | 285 | 282 | 111 | 44.0 | 15.6 |
MAX | 87 | 201 | 155 | 1040 | 831 | 1830 | 732 | 1110 | 898 | 323 | 483 | 32 |
MIN | 15 | 46 | 72 | 106 | 152 | 159 | 173 | 117 | 79 | 37 | 18 | 11 |
CFSM | .16 | .54 | .62 | 1.82 | 1.79 | 2.42 | 2.26 | 1.84 | 1.82 | .72 | .28 | .10 |
IN. | .19 | .60 | .72 | 2.10 | 1.87 | 2.79 | 2.52 | 2.12 | 2.03 | .83 | .33 | .11 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 49.6 | 63.2 | 71.5 | 89.0 | 150 | 181 | 200 | 173 | 159 | 109 | 56.6 | 49.3 |
MAX | 466 | 486 | 436 | 427 | 871 | 554 | 634 | 558 | 693 | 689 | 466 | 375 |
(WY) | 1942 | 1978 | 1983 | 1974 | 1951 | 1979 | 1983 | 1973 | 1974 | 1969 | 1993 | 1989 |
MIN | .93 | 1.87 | .84 | .50 | 2.44 | 13.8 | 11.3 | 11.3 | 9.95 | 6.91 | 3.48 | 2.13 |
(WY) | 1957 | 1977 | 1977 | 1977 | 1989 | 1956 | 1956 | 1989 | 1977 | 1977 | 1988 | 1956 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1941 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 27254.2 | 67557 | ||||
ANNUAL MEAN | 74.7 | 185 | 112 | |||
HIGHEST ANNUAL MEAN | 334 | 1993 | ||||
LOWEST ANNUAL MEAN | 22.0 | 1977 | ||||
HIGHEST DAILY MEAN | 3870 A | Feb 21 | 1830 | Mar 18 | 7630 | Feb 19 1951 |
LOWEST DAILY MEAN | 3.7 B | Jan 20 | 11 | Sep 12, 13 | .40 | Oct 6 1956 |
ANNUAL SEVEN-DAY MINIMUM | 4.1 | Jan 14 | 12 | Sep 7 | .40 | Jan 20 1977 |
INSTANTANEOUS PEAK FLOW | 2330 | Mar 18 | 8910 C | Feb 19 1951 | ||
INSTANTANEOUS PEAK STAGE | 11.19 | Mar 18 | 15.52 | Jun 23 1974 | ||
INSTANTANEOUS LOW FLOW | 11 | Sep 8-13 | .30 | Oct 6 1956 | ||
ANNUAL RUNOFF (CFSM) | .48 | 1.19 | .72 | |||
ANNUAL RUNOFF (INCHES) | 6.54 | 16.21 | 9.84 | |||
10 PERCENT EXCEEDS | 108 | 439 | 230 | |||
50 PERCENT EXCEEDS | 39 | 129 | 49 | |||
90 PERCENT EXCEEDS | 9.9 | 16 | 5.8 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |