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 | 63 | 72 | 249 | 244 | 1050 | 1590 | 2350 | 3950 | 1080 | 1220 | 206 | 85 |
2 | 61 | 73 | 241 | 267 | 1380 | 1380 | 2280 | 5680 | 990 | 1170 | 200 | 83 |
3 | 58 | 69 | 220 | 302 | 1440 | 1240 | 2120 | 4170 | 930 | 940 | 194 | 79 |
4 | 58 | 67 | 209 | 340 | 1260 | 1130 | 1920 | 2910 | 893 | 824 | 192 | 78 |
5 | 56 | 70 | 202 | 566 | 1110 | 1030 | 1780 | 2970 | 855 | 752 | 234 | 75 |
6 | 54 | 89 | 190 | 961 | 988 | 942 | 1730 | 5060 | 813 | 789 | 197 | 73 |
7 | 52 | 88 | 181 | 1360 | 885 | 885 | 1640 | 5490 | 778 | 1110 | 188 | 71 |
8 | 51 | 107 | 170 | 2020 | 808 | 1230 | 1940 | 7150 | 763 | 1580 | 177 | 68 |
9 | 49 | 130 | 164 | 3020 | 750 | 3010 | 2130 | 7780 | 998 | 1560 | 171 | 67 |
10 | 47 | 122 | 167 | 2940 | 711 | 3290 | 2040 | 9560 | 1120 | 1190 | 160 | 66 |
11 | 47 | 114 | 167 | 2300 | 1300 | 3070 | 1820 | e8410 | 1360 | 881 | 152 | 65 |
12 | 46 | 106 | 163 | 1760 | 3740 | 2440 | 1660 | 4000 | 3100 | 740 | 147 | 64 |
13 | 51 | 100 | 150 | 1390 | 3290 | 2070 | 1610 | 4350 | 3220 | 651 | 142 | 62 |
14 | 62 | 96 | 135 | 1120 | 2410 | 1920 | 1930 | 3410 | 2520 | 586 | 139 | 62 |
15 | 51 | 93 | 130 | 1050 | 1970 | 1800 | 1830 | 2750 | 3010 | 532 | 140 | 69 |
16 | 52 | 92 | 147 | 972 | 1710 | 1670 | 1790 | 2410 | 4730 | 485 | 143 | 66 |
17 | 55 | 89 | 144 | 843 | 1570 | 2650 | 1680 | 2060 | 3650 | 443 | 133 | 63 |
18 | 53 | 85 | 140 | 741 | 1590 | 7430 | 1500 | 1820 | 4060 | 407 | 281 | 61 |
19 | 53 | 82 | 143 | 653 | 1690 | 7500 | 1380 | 1660 | 3670 | 379 | 182 | 61 |
20 | 49 | 81 | 146 | 569 | 1730 | 8030 | 1300 | 1540 | 2760 | 355 | 175 | 59 |
21 | 49 | 81 | 160 | 585 | 1590 | 6860 | 1310 | 1430 | 2190 | 330 | 139 | 56 |
22 | 48 | 81 | 177 | 570 | 1440 | 5930 | 1580 | 1410 | 1850 | 305 | 125 | 55 |
23 | 47 | 80 | 192 | 530 | 1320 | 5690 | 1780 | 1380 | 1810 | 310 | 117 | 55 |
24 | 47 | 78 | 212 | 500 | 1220 | 5000 | 1570 | 1930 | 1500 | 311 | 107 | 58 |
25 | 52 | 77 | 257 | 471 | 1140 | 3440 | 1430 | 2100 | 1330 | 281 | 102 | 67 |
26 | 52 | 76 | 321 | 447 | 1080 | 2840 | 1340 | 1840 | 1180 | 261 | 97 | 58 |
27 | 58 | 74 | 370 | 435 | 1520 | 2480 | 1220 | 1520 | 1060 | 245 | 94 | 56 |
28 | 59 | 87 | 365 | 434 | 1800 | 2370 | 1090 | 1350 | 988 | 239 | 92 | 56 |
29 | 58 | 111 | 339 | 522 | --- | 2590 | 1180 | 1240 | 1050 | 228 | 97 | 54 |
30 | 70 | 191 | 325 | 764 | --- | 2560 | 1250 | 1180 | 1090 | 220 | 92 | 54 |
31 | 70 | --- | 285 | 953 | --- | 2350 | --- | 1180 | --- | 212 | 88 | --- |
TOTAL | 1678 | 2761 | 6461 | 29629 | 42492 | 96417 | 50180 | 103690 | 55348 | 19536 | 4703 | 1946 |
MEAN | 54.1 | 92.0 | 208 | 956 | 1518 | 3110 | 1673 | 3345 | 1845 | 630 | 152 | 64.9 |
MAX | 70 | 191 | 370 | 3020 | 3740 | 8030 | 2350 | 9560 | 4730 | 1580 | 281 | 85 |
MIN | 46 | 67 | 130 | 244 | 711 | 885 | 1090 | 1180 | 763 | 212 | 88 | 54 |
CFSM | .05 | .09 | .19 | .89 | 1.41 | 2.90 | 1.56 | 3.12 | 1.72 | .59 | .14 | .06 |
IN. | .06 | .10 | .22 | 1.03 | 1.47 | 3.34 | 1.74 | 3.59 | 1.92 | .68 | .16 | .07 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 310 | 432 | 475 | 719 | 967 | 1113 | 1352 | 1279 | 837 | 575 | 289 | 365 |
MAX | 3525 | 3417 | 2425 | 3514 | 3066 | 3629 | 4996 | 5756 | 2516 | 3109 | 2404 | 6057 |
(WY) | 1927 | 1927 | 1928 | 1993 | 1927 | 1993 | 1944 | 1943 | 1946 | 1951 | 1924 | 1993 |
MIN | 19.8 | 21.8 | 26.3 | 29.6 | 34.1 | 49.3 | 68.8 | 79.9 | 53.2 | 37.1 | 28.6 | 23.7 |
(WY) | 1941 | 1941 | 1941 | 1940 | 1931 | 1931 | 1931 | 1934 | 1934 | 1988 | 1988 | 1940 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1921 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 159596 | 414841 | ||||
ANNUAL MEAN | 437 | 1137 | 730 | |||
HIGHEST ANNUAL MEAN | 2353 | 1993 | ||||
LOWEST ANNUAL MEAN | 98.4 | 1940 | ||||
HIGHEST DAILY MEAN | 6490 | Feb 28 | 9560 | May 10 | 23500 | Apr 24 1944 |
LOWEST DAILY MEAN | 46 | Oct 12 | 46 | Oct 12 | 17 | A |
ANNUAL SEVEN-DAY MINIMUM | 49 | Oct 7 | 49 | Oct 7 | 18 | Oct 21 1940 |
INSTANTANEOUS PEAK FLOW | 10800 | May 11 | 51000 B | Dec 5 1982 | ||
INSTANTANEOUS PEAK STAGE | 25.97 | May 11 | C | Sep 16 1993 | ||
INSTANTANEOUS LOW FLOW | 46 | Oct 10, 12, 13 | 17 D | A | ||
ANNUAL RUNOFF (CFSM) | .41 | 1.06 | .68 | |||
ANNUAL RUNOFF (INCHES) | 5.53 | 14.38 | 9.24 | |||
10 PERCENT EXCEEDS | 907 | 2870 | 1800 | |||
50 PERCENT EXCEEDS | 190 | 569 | 260 | |||
90 PERCENT EXCEEDS | 62 | 60 | 44 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |