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 | 213 | 242 | 311 | 270 | 500 | 865 | 1310 | 870 | 512 | 945 | 174 | 311 |
2 | 199 | 247 | 379 | 290 | 627 | 878 | 1400 | 886 | 506 | 726 | 158 | 292 |
3 | 154 | 242 | 395 | 330 | 794 | 841 | 1370 | 868 | 486 | 523 | 151 | 203 |
4 | 157 | 239 | 398 | 455 | 866 | 769 | 1300 | 805 | 402 | 581 | 202 | 231 |
5 | 177 | 236 | 402 | 696 | 812 | 700 | 1220 | 682 | 313 | 642 | 651 | 239 |
6 | 189 | 234 | 336 | 1050 | 798 | 676 | 1160 | 693 | 318 | 561 | 1510 | 231 |
7 | 201 | 248 | 324 | 1310 | 758 | 626 | 1150 | 977 | 338 | 444 | 1250 | 297 |
8 | 212 | 264 | 305 | 1640 | 734 | 671 | 1110 | 1640 | 327 | 485 | 948 | 336 |
9 | 196 | 259 | 263 | 1370 | 662 | 890 | 1400 | 1720 | 345 | 512 | 921 | 298 |
10 | 146 | 261 | 298 | 700 | 532 | 800 | 1790 | 1510 | 356 | 452 | 1000 | 266 |
11 | 196 | 288 | 309 | 640 | 687 | 410 | 1710 | 1340 | 388 | 370 | 1050 | 153 |
12 | 188 | 257 | 312 | 600 | 1350 | 400 | 1260 | 1180 | 516 | 353 | 1000 | 163 |
13 | 198 | 244 | 323 | 560 | 1470 | 390 | 1100 | 1140 | 551 | 321 | 1030 | 184 |
14 | 204 | 239 | 320 | 540 | 1360 | 390 | 1260 | 1040 | 509 | 301 | 1020 | 221 |
15 | 226 | 286 | 319 | 540 | 1280 | 390 | 1270 | 851 | 480 | 273 | 902 | 387 |
16 | 237 | 328 | 311 | 540 | 1270 | 380 | 1420 | 746 | 442 | 263 | 813 | 445 |
17 | 217 | 293 | 313 | 540 | 1330 | 380 | 1710 | 659 | 368 | 253 | 644 | 392 |
18 | 201 | 195 | 313 | 540 | 1350 | 640 | 1630 | 566 | 309 | 242 | 550 | 360 |
19 | 214 | 174 | 313 | 540 | 1320 | 912 | 1420 | 424 | 453 | 234 | 420 | 269 |
20 | 192 | 186 | 313 | 520 | 1200 | 1090 | 1350 | 480 | 501 | 228 | 313 | 258 |
21 | 238 | 211 | 317 | 500 | 1160 | 1020 | 1400 | 588 | 434 | 273 | 215 | 234 |
22 | 279 | 227 | 315 | 500 | 1110 | 913 | 1590 | 473 | 420 | 289 | 271 | 235 |
23 | 268 | 218 | 312 | 490 | 1080 | 882 | 1530 | 362 | 354 | 307 | 275 | 226 |
24 | 260 | 210 | 311 | 480 | 1090 | 882 | 1340 | 335 | 281 | 328 | 271 | 182 |
25 | 262 | 210 | 316 | 470 | 1030 | 881 | 1170 | 389 | 312 | 309 | 435 | 185 |
26 | 265 | 220 | 316 | 460 | 964 | 780 | 1170 | 426 | 518 | 281 | 538 | 202 |
27 | 286 | 247 | 304 | 450 | 870 | 598 | 1200 | 418 | 661 | 179 | 325 | 191 |
28 | 285 | 254 | 320 | 450 | 867 | 585 | 1040 | 379 | 916 | 164 | 323 | 190 |
29 | 258 | 258 | 300 | 460 | --- | 595 | 868 | 430 | 1160 | 163 | 312 | 191 |
30 | 240 | 277 | 280 | 470 | --- | 611 | 871 | 461 | 1080 | 174 | 308 | 188 |
31 | 237 | --- | 270 | 470 | --- | 832 | --- | 535 | --- | 187 | 300 | --- |
TOTAL | 6795 | 7294 | 9918 | 18871 | 27871 | 21677 | 39519 | 23873 | 14556 | 11363 | 18280 | 7560 |
MEAN | 219 | 243 | 320 | 609 | 995 | 699 | 1317 | 770 | 485 | 367 | 590 | 252 |
MAX | 286 | 328 | 402 | 1640 | 1470 | 1090 | 1790 | 1720 | 1160 | 945 | 1510 | 445 |
MIN | 146 | 174 | 263 | 270 | 500 | 380 | 868 | 335 | 281 | 163 | 151 | 153 |
CFSM | .27 | .30 | .39 | .75 | 1.23 | .86 | 1.62 | .95 | .60 | .45 | .73 | .31 |
IN. | .31 | .33 | .45 | .87 | 1.28 | .99 | 1.81 | 1.10 | .67 | .52 | .84 | .35 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 383 | 479 | 455 | 424 | 525 | 1126 | 1078 | 692 | 514 | 387 | 333 | 338 |
MAX | 1931 | 1536 | 1755 | 1818 | 1354 | 2434 | 3591 | 2078 | 1711 | 1382 | 902 | 1763 |
(WY) | 1987 | 1986 | 1983 | 1960 | 1974 | 1979 | 1993 | 1973 | 1996 | 1969 | 1952 | 1972 |
MIN | 79.5 | 113 | 91.4 | 87.7 | 105 | 252 | 256 | 108 | 124 | 69.2 | 57.2 | 62.7 |
(WY) | 1957 | 1950 | 1964 | 1940 | 1940 | 1968 | 1958 | 1958 | 1988 | 1958 | 1958 | 1946 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 189486 | 207577 | ||||
ANNUAL MEAN | 519 | 569 | 561 | |||
HIGHEST ANNUAL MEAN | 1240 | 1993 | ||||
LOWEST ANNUAL MEAN | 174 | 1958 | ||||
HIGHEST DAILY MEAN | 3130 | Feb 22 | 1790 | Apr 10 | 7100 | Apr 1 1960 |
LOWEST DAILY MEAN | 144 | Sep 30 | 146 | Oct 10 | 35 | Sep 9 1958 |
ANNUAL SEVEN-DAY MINIMUM | 176 | Sep 30 | 167 | Jul 28 | 41 | Sep 7 1958 |
INSTANTANEOUS PEAK FLOW | 1830 | Apr 10 | (a)7520 | Mar 31 1960 | ||
INSTANTANEOUS PEAK STAGE | 10.34 | Apr 10 | (b)14.10 | Feb 21 1994 | ||
INSTANTANEOUS LOW FLOW | 129 | Oct 10 | .00 | (c)Oct 26 1945 | ||
ANNUAL RUNOFF (CFSM) | .64 | .70 | .69 | |||
ANNUAL RUNOFF (INCHES) | 8.69 | 9.52 | 9.40 | |||
10 PERCENT EXCEEDS | 951 | 1230 | 1260 | |||
50 PERCENT EXCEEDS | 369 | 410 | 361 | |||
90 PERCENT EXCEEDS | 216 | 204 | 124 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |