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 | 159 | 202 | 259 | e190 | 451 | 858 | 2850 | 1440 | 864 | 1440 | 291 | 257 |
2 | 160 | 197 | 262 | 216 | 607 | 786 | 3020 | 1390 | 797 | 1100 | 281 | 240 |
3 | 161 | 196 | 254 | 264 | 865 | 753 | 2650 | 1640 | 753 | 900 | 276 | 232 |
4 | 162 | 193 | 254 | 513 | 916 | 737 | 2130 | 1500 | 719 | 1040 | 305 | 223 |
5 | 157 | 198 | 246 | 922 | 866 | 717 | 1760 | 1380 | 710 | 1400 | e370 | 220 |
6 | 150 | 222 | 238 | 1160 | 778 | 702 | 1510 | 1300 | 698 | 1160 | e640 | 209 |
7 | 146 | 226 | 229 | e1500 | 723 | 685 | 1380 | 1910 | 674 | e1500 | e480 | 273 |
8 | 147 | 239 | 226 | e1800 | 704 | 842 | 1590 | 4390 | 655 | 1370 | 457 | 270 |
9 | 153 | 228 | 225 | 1380 | 696 | 1660 | 2560 | 5360 | 686 | 1200 | 397 | 244 |
10 | 154 | 217 | 235 | 1040 | 680 | 1600 | 3020 | 5180 | 799 | 956 | 352 | 224 |
11 | 153 | 206 | 237 | 821 | 767 | 1370 | 2680 | 4040 | 1210 | 802 | 323 | 208 |
12 | 155 | 202 | 229 | 828 | 1570 | 1210 | 2150 | 2970 | 1840 | 709 | 303 | 200 |
13 | 182 | 204 | 219 | e700 | 1890 | 1090 | 1880 | 2690 | 2040 | 652 | 286 | 193 |
14 | 183 | 201 | 198 | e600 | 1550 | 963 | 1920 | 2360 | 1670 | 614 | 273 | 254 |
15 | 198 | 204 | 206 | e700 | 1270 | 868 | 1700 | 2070 | 1410 | 576 | 268 | 364 |
16 | 184 | 203 | 230 | e650 | 1110 | 797 | 3260 | 1860 | 1200 | 543 | 262 | 414 |
17 | 179 | 191 | 210 | e600 | 1030 | 796 | 4490 | 1570 | 1020 | 514 | 253 | 329 |
18 | 174 | 203 | 212 | e560 | 1000 | 1260 | 4380 | 1390 | 979 | 485 | 248 | 281 |
19 | 176 | 206 | 212 | e520 | 938 | 2340 | 3530 | 1260 | 1440 | 544 | 240 | 259 |
20 | 172 | 205 | 210 | e500 | 870 | 2570 | 2870 | 1970 | 1560 | 542 | 235 | 245 |
21 | 169 | 206 | 210 | e480 | 810 | 2200 | 3250 | 1930 | 1330 | 493 | 235 | 231 |
22 | 166 | 206 | 213 | e470 | 767 | 1750 | 3410 | 1400 | 1080 | 482 | 237 | 226 |
23 | 171 | 202 | 213 | e460 | 736 | 1480 | 3130 | 1230 | 912 | 464 | 234 | 221 |
24 | 175 | 185 | 219 | e450 | 728 | 1300 | 2580 | 1250 | 836 | 431 | 255 | 221 |
25 | 180 | 210 | 225 | e440 | 720 | 1160 | 2130 | 1220 | 764 | 400 | 298 | 222 |
26 | 192 | 205 | 225 | 431 | 704 | 1080 | 2060 | 1070 | 3530 | 378 | 440 | 223 |
27 | 216 | 201 | 199 | 421 | 765 | 994 | 2080 | 944 | 4960 | 358 | 323 | 218 |
28 | 235 | 208 | 217 | 419 | 884 | 949 | 1820 | 970 | 3580 | 345 | 351 | 214 |
29 | 232 | 217 | 233 | 419 | --- | 922 | 1630 | 1150 | 3290 | 327 | 380 | 216 |
30 | 217 | 247 | 203 | 432 | --- | 867 | 1520 | 1090 | 2410 | 309 | 334 | 219 |
31 | 208 | --- | e195 | 435 | --- | 1330 | --- | 953 | --- | 300 | 282 | --- |
TOTAL | 5466 | 6230 | 6943 | 20321 | 25395 | 36636 | 74940 | 60877 | 44416 | 22334 | 9909 | 7350 |
MEAN | 176 | 208 | 224 | 656 | 907 | 1182 | 2498 | 1964 | 1481 | 720 | 320 | 245 |
MAX | 235 | 247 | 262 | 1800 | 1890 | 2570 | 4490 | 5360 | 4960 | 1500 | 640 | 414 |
MIN | 146 | 185 | 195 | 190 | 451 | 685 | 1380 | 944 | 655 | 300 | 234 | 193 |
CFSM | .16 | .19 | .20 | .60 | .83 | 1.08 | 2.27 | 1.79 | 1.35 | .66 | .29 | .22 |
IN. | .19 | .21 | .24 | .69 | .86 | 1.24 | 2.54 | 2.06 | 1.50 | .76 | .34 | .25 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 455 | 573 | 609 | 627 | 867 | 1434 | 1285 | 1019 | 884 | 606 | 453 | 446 |
MAX | 2309 | 2881 | 3230 | 2265 | 2963 | 5395 | 4267 | 3355 | 3827 | 3263 | 2853 | 3577 |
(WY) | 1973 | 1986 | 1983 | 1969 | 1997 | 1979 | 1993 | 1996 | 1993 | 1993 | 1987 | 1972 |
MIN | 75.5 | 95.8 | 83.5 | 68.8 | 98.8 | 230 | 280 | 212 | 214 | 135 | 97.4 | 78.9 |
(WY) | 1957 | 1957 | 1964 | 1959 | 1940 | 1956 | 1963 | 1949 | 1959 | 1941 | 1964 | 1946 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 293636 | 320817 | ||||
ANNUAL MEAN | 804 | 879 | 771 | |||
HIGHEST ANNUAL MEAN | 1955 | 1993 | ||||
LOWEST ANNUAL MEAN | 227 | 1977 | ||||
HIGHEST DAILY MEAN | 16400 | Feb 22 | 5360 | May 9 | 16700 | Jul 19 1996 |
LOWEST DAILY MEAN | 146 | Oct 7 | 146 | Oct 7 | 49 | Oct 10 1956 |
ANNUAL SEVEN-DAY MINIMUM | 151 | Oct 6 | 151 | Oct 6 | 52 | Sep 11 1964 |
INSTANTANEOUS PEAK FLOW | 5480 | May 9 | 24200 | Jul 18 1996 | ||
INSTANTANEOUS PEAK STAGE | 11.37 | May 9 | 23.54 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | 144 | Oct 6-9 | 46 | A | ||
ANNUAL RUNOFF (CFSM) | .73 | .80 | .70 | |||
ANNUAL RUNOFF (INCHES) | 9.94 | 10.86 | 9.53 | |||
10 PERCENT EXCEEDS | 1340 | 2050 | 1680 | |||
50 PERCENT EXCEEDS | 437 | 520 | 422 | |||
90 PERCENT EXCEEDS | 180 | 199 | 125 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |