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 | 231 | 278 | 293 | 180 | 264 | 516 | 1370 | 619 | 443 | 1510 | 332 | 331 |
2 | 232 | 281 | 290 | 220 | 284 | 475 | 2120 | 592 | 435 | 1060 | 328 | 316 |
3 | 234 | 277 | 281 | 305 | 310 | 411 | 2040 | 576 | 415 | 683 | 323 | 315 |
4 | 235 | 269 | 278 | 359 | 308 | 387 | 1460 | 576 | 400 | 593 | 327 | 314 |
5 | 233 | 265 | 277 | 403 | 294 | 371 | 1080 | 581 | 394 | 639 | 379 | 312 |
6 | 227 | 269 | 266 | 453 | 282 | 360 | 816 | 557 | 388 | 675 | 505 | 306 |
7 | 246 | 283 | 256 | 493 | 275 | 350 | 686 | 643 | 382 | 681 | 772 | 304 |
8 | 214 | 286 | 255 | 466 | 270 | 361 | 723 | 824 | 376 | 661 | 726 | 300 |
9 | 229 | 276 | 254 | 380 | 265 | 375 | 894 | 894 | 385 | 568 | 524 | 297 |
10 | 227 | 269 | 257 | 300 | 262 | 330 | 1040 | 926 | 397 | 524 | 420 | 294 |
11 | 231 | 265 | 256 | 280 | 280 | 290 | 1100 | 775 | 425 | 492 | 390 | 291 |
12 | 236 | 259 | 254 | 280 | 384 | 310 | 939 | 624 | 540 | 465 | 369 | 288 |
13 | 246 | 256 | 248 | 270 | 463 | 300 | 780 | 592 | 625 | 446 | 359 | 286 |
14 | 251 | 255 | 237 | 270 | 445 | 300 | 744 | 547 | 658 | 430 | 353 | 313 |
15 | 252 | 259 | 241 | 260 | 409 | 300 | 752 | 507 | 547 | 417 | 361 | 445 |
16 | 245 | 257 | 256 | 250 | 413 | 307 | 968 | 501 | 469 | 404 | 357 | 575 |
17 | 242 | 248 | 247 | 250 | 445 | 310 | 1210 | 478 | 433 | 376 | 355 | 621 |
18 | 240 | 251 | 248 | 260 | 473 | 358 | 1450 | 463 | 427 | 379 | 354 | 507 |
19 | 241 | 252 | 247 | 260 | 469 | 472 | 1260 | 449 | 628 | 390 | 352 | 405 |
20 | 241 | 252 | 249 | 260 | 422 | 563 | 957 | 438 | 862 | 403 | 345 | 364 |
21 | 241 | 250 | 248 | 250 | 386 | 565 | 919 | 422 | 1110 | 448 | 339 | 347 |
22 | 239 | 251 | 249 | 250 | 365 | 509 | 937 | 425 | 1060 | 460 | 339 | 337 |
23 | 242 | 245 | 247 | 250 | 350 | 471 | 896 | 424 | 723 | 447 | 372 | 329 |
24 | 266 | 231 | 250 | 250 | 352 | 450 | 834 | 532 | 536 | 408 | 374 | 327 |
25 | 266 | 245 | 251 | 250 | 356 | 433 | 733 | 513 | 474 | 385 | 359 | 328 |
26 | 257 | 254 | 240 | 250 | 355 | 422 | 677 | 514 | 484 | 373 | 356 | 331 |
27 | 259 | 246 | 230 | 260 | 382 | 416 | 676 | 483 | 512 | 365 | 343 | 328 |
28 | 266 | 247 | 210 | 275 | 456 | 410 | 702 | 460 | 757 | 359 | 357 | 320 |
29 | 264 | 251 | 230 | 278 | --- | 390 | 719 | 464 | 988 | 337 | 378 | 312 |
30 | 267 | 268 | 220 | 266 | --- | 384 | 668 | 458 | 1370 | 339 | 390 | 312 |
31 | 269 | --- | 200 | 263 | --- | 880 | --- | 456 | --- | 336 | 349 | --- |
TOTAL | 7569 | 7795 | 7765 | 9041 | 10019 | 12776 | 30150 | 17313 | 17643 | 16053 | 12187 | 10455 |
MEAN | 244 | 260 | 250 | 292 | 358 | 412 | 1005 | 558 | 588 | 518 | 393 | 349 |
MAX | 269 | 286 | 293 | 493 | 473 | 880 | 2120 | 926 | 1370 | 1510 | 772 | 621 |
MIN | 214 | 231 | 200 | 180 | 262 | 290 | 668 | 422 | 376 | 336 | 323 | 286 |
CFSM | .47 | .50 | .48 | .56 | .68 | .79 | 1.92 | 1.07 | 1.12 | .99 | .75 | .67 |
IN. | .54 | .55 | .55 | .64 | .71 | .91 | 2.14 | 1.23 | 1.25 | 1.14 | .87 | .74 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 282 | 306 | 270 | 294 | 428 | 667 | 460 | 365 | 356 | 300 | 258 | 296 |
MAX | 788 | 836 | 597 | 1168 | 1691 | 1698 | 1159 | 1368 | 1244 | 1248 | 694 | 1579 |
(WY) | 1928 | 1962 | 1929 | 1916 | 1938 | 1929 | 1993 | 1973 | 1996 | 1993 | 1924 | 1938 |
MIN | 126 | 127 | 120 | 89.4 | 127 | 181 | 198 | 140 | 113 | 117 | 105 | 106 |
(WY) | 1965 | 1965 | 1956 | 1956 | 1959 | 1934 | 1938 | 1934 | 1934 | 1958 | 1934 | 1958 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1914 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 149994 | 158766 | ||||
ANNUAL MEAN | 411 | 435 | 357 | |||
HIGHEST ANNUAL MEAN | 694 | 1993 | ||||
LOWEST ANNUAL MEAN | 172 | 1934 | ||||
HIGHEST DAILY MEAN | 3950 | Feb 22 | 2120 | Apr 2 | 10800 | Mar 14 1929 |
LOWEST DAILY MEAN | (a)200 | Dec 31 | (a)180 | Jan 1 | 51 | Jun 13 1934 |
ANNUAL SEVEN-DAY MINIMUM | (a)226 | Dec 25 | (a)213 | Dec 27 | 71 | Jun 28 1934 |
INSTANTANEOUS PEAK FLOW | 2380 | Apr 2 | (b)14800 | Sep 13 1915 | ||
INSTANTANEOUS PEAK STAGE | 6.29 | Apr 2 | (c)11.40 | Sep 13 1915 | ||
INSTANTANEOUS LOW FLOW | 35 | Sep 19 1959 | ||||
ANNUAL RUNOFF (CFSM) | .79 | .83 | .68 | |||
ANNUAL RUNOFF (INCHES) | 10.67 | 11.29 | 9.26 | |||
10 PERCENT EXCEEDS | 583 | 737 | 580 | |||
50 PERCENT EXCEEDS | 310 | 357 | 260 | |||
90 PERCENT EXCEEDS | 246 | 247 | 150 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |