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 | 80 | 112 | 145 | 98 | 233 | 302 | 1080 | 655 | 418 | 937 | 156 | 117 |
2 | 79 | 109 | 140 | 127 | 345 | 290 | 1190 | 666 | 393 | 720 | 151 | 110 |
3 | 78 | 111 | 139 | 172 | 476 | 284 | 1100 | 720 | 369 | 615 | 151 | 106 |
4 | 78 | 109 | 138 | 279 | 466 | 281 | 879 | 698 | 354 | 654 | 180 | 103 |
5 | 74 | 112 | 136 | 410 | 417 | 274 | 715 | 660 | 350 | 645 | 188 | 100 |
6 | 71 | 123 | 129 | 531 | 368 | 271 | 610 | 642 | 344 | 557 | 357 | 96 |
7 | 73 | 130 | 125 | 648 | 339 | 268 | 555 | 1080 | 334 | 725 | 274 | 160 |
8 | 73 | 127 | 122 | 686 | 324 | 338 | 634 | 2260 | 318 | 613 | 251 | 149 |
9 | 77 | 123 | 121 | 606 | 313 | 512 | 970 | 2970 | 341 | 559 | 212 | 128 |
10 | 78 | 118 | 128 | 416 | 301 | 452 | 1150 | 2520 | 350 | 496 | 191 | 115 |
11 | 77 | 112 | 127 | 301 | 354 | 445 | 1080 | 1890 | 398 | 446 | 170 | 106 |
12 | 76 | 111 | 122 | 386 | 597 | 410 | 870 | 1410 | 543 | 410 | 158 | 101 |
13 | 94 | 110 | 117 | 282 | 673 | 396 | 760 | 1260 | 607 | 381 | 149 | 96 |
14 | 96 | 109 | 106 | 272 | 573 | 354 | 753 | 1170 | 568 | 356 | 143 | 127 |
15 | 93 | 112 | 115 | 320 | 483 | 320 | 714 | 1050 | 502 | 330 | 139 | 201 |
16 | 91 | 107 | 120 | 299 | 436 | 306 | 1130 | 930 | 442 | 312 | 131 | 207 |
17 | 89 | 101 | 114 | 282 | 428 | 316 | 1760 | 771 | 400 | 294 | 126 | 171 |
18 | 92 | 106 | 114 | 237 | 435 | 454 | 2180 | 671 | 415 | 280 | 123 | 151 |
19 | 91 | 107 | 115 | 247 | 413 | 723 | 1820 | 603 | 580 | 308 | 116 | 138 |
20 | 90 | 108 | 115 | 242 | 384 | 844 | 1420 | 563 | 640 | 289 | 111 | 128 |
21 | 90 | 109 | 117 | 234 | 359 | 752 | 1260 | 531 | 549 | 273 | 112 | 124 |
22 | 89 | 109 | 119 | 231 | 339 | 618 | 1350 | 496 | 455 | 270 | 113 | 119 |
23 | 90 | 106 | 119 | 228 | 325 | 537 | 1280 | 475 | 402 | 256 | 117 | 113 |
24 | 94 | 97 | 121 | 222 | 318 | 475 | 1080 | 543 | 367 | 233 | 117 | 114 |
25 | 98 | 111 | 122 | 215 | 307 | 427 | 916 | 517 | 346 | 218 | 139 | 117 |
26 | 107 | 109 | 119 | 212 | 298 | 404 | 868 | 469 | 2390 | 206 | 150 | 115 |
27 | 121 | 108 | 103 | 208 | 319 | 383 | 835 | 437 | 3190 | 197 | 128 | 110 |
28 | 130 | 113 | 101 | 208 | 317 | 376 | 769 | 461 | 2400 | 189 | 160 | 105 |
29 | 125 | 121 | 130 | 212 | --- | 362 | 710 | 538 | 2340 | 181 | 169 | 109 |
30 | 119 | 139 | 108 | 215 | --- | 347 | 678 | 511 | 1540 | 171 | 146 | 112 |
31 | 115 | --- | 99 | 218 | --- | 542 | --- | 464 | --- | 164 | 126 | --- |
TOTAL | 2828 | 3379 | 3746 | 9244 | 10940 | 13063 | 31116 | 28631 | 22645 | 12285 | 4954 | 3748 |
MEAN | 91.2 | 113 | 121 | 298 | 391 | 421 | 1037 | 924 | 755 | 396 | 160 | 125 |
MAX | 130 | 139 | 145 | 686 | 673 | 844 | 2180 | 2970 | 3190 | 937 | 357 | 207 |
MIN | 71 | 97 | 99 | 98 | 233 | 268 | 555 | 437 | 318 | 164 | 111 | 96 |
CFSM | .17 | .21 | .22 | .55 | .73 | .78 | 1.93 | 1.72 | 1.40 | .74 | .30 | .23 |
IN. | .20 | .23 | .26 | .64 | .76 | .90 | 2.15 | 1.98 | 1.57 | .85 | .34 | .26 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 232 | 284 | 303 | 293 | 402 | 688 | 632 | 480 | 408 | 285 | 216 | 239 |
MAX | 1242 | 1328 | 1613 | 1053 | 1208 | 2337 | 2461 | 1610 | 1638 | 1815 | 1287 | 2215 |
(WY) | 1973 | 1986 | 1983 | 1974 | 1997 | 1979 | 1993 | 1974 | 1993 | 1993 | 1987 | 1972 |
MIN | 40.3 | 50.1 | 42.8 | 30.5 | 49.6 | 120 | 141 | 108 | 101 | 56.6 | 39.2 | 44.0 |
(WY) | 1957 | 1957 | 1964 | 1940 | 1940 | 1956 | 1963 | 1949 | 1977 | 1941 | 1964 | 1964 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 137562 | 146579 | ||||
ANNUAL MEAN | 377 | 402 | 371 | |||
HIGHEST ANNUAL MEAN | 992 | 1993 | ||||
LOWEST ANNUAL MEAN | 112 | 1963 | ||||
HIGHEST DAILY MEAN | 7110 | Feb 22 | 3190 | Jun 27 | 8380 | Mar 15 1944 |
LOWEST DAILY MEAN | 71 | Oct 6 | 71 | Oct 6 | 15 | A |
ANNUAL SEVEN-DAY MINIMUM | 75 | Oct 5 | 75 | Oct 5 | 23 | Jan 2 1940 |
INSTANTANEOUS PEAK FLOW | 3570 | Jun 26 | 11900 | Feb 20 1994 | ||
INSTANTANEOUS PEAK STAGE | 8.04 | Jun 26 | 14.19 | Feb 20 1994 | ||
INSTANTANEOUS LOW FLOW | 63 B | Nov 24, Dec. 28 | 14 C | Sep 19 1988 | ||
ANNUAL RUNOFF (CFSM) | .70 | .75 | .69 | |||
ANNUAL RUNOFF (INCHES) | 9.51 | 10.14 | 9.38 | |||
10 PERCENT EXCEEDS | 639 | 839 | 795 | |||
50 PERCENT EXCEEDS | 200 | 273 | 210 | |||
90 PERCENT EXCEEDS | 89 | 104 | 67 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |