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 | 57 | 93 | 308 | 304 | 635 | 790 | 4060 | 4800 | 1270 | 2460 | 392 | 117 |
2 | 60 | 85 | 356 | 285 | 617 | 731 | 3720 | 4110 | 1080 | 1490 | 380 | 111 |
3 | 67 | 101 | 283 | 259 | 597 | 694 | 2890 | 7890 | 1010 | 1240 | 383 | 105 |
4 | 60 | 105 | 230 | 265 | 557 | 704 | 2920 | 12900 | 941 | 2530 | 6320 | 102 |
5 | 56 | 86 | 204 | 285 | 541 | 648 | 2690 | 10700 | 911 | 3270 | 4210 | 99 |
6 | 57 | 92 | 181 | 726 | 518 | 575 | 2200 | 7420 | 819 | 3300 | 3830 | 96 |
7 | 53 | 83 | 163 | 1540 | 483 | 537 | 1950 | 5060 | 718 | 6780 | 4060 | 90 |
8 | 51 | 122 | 147 | 1720 | 460 | 610 | 2910 | 7540 | 745 | 5730 | 4970 | 82 |
9 | 60 | 133 | 144 | 3160 | 434 | 2570 | 3380 | 8720 | 1100 | 3720 | 3550 | 74 |
10 | 61 | 116 | 181 | 3160 | 420 | 4670 | 3080 | 7860 | 2000 | 2290 | 2790 | 105 |
11 | 58 | 107 | 246 | e2100 | 444 | 3310 | 2230 | 4530 | 6140 | 1730 | 1810 | 81 |
12 | 80 | 99 | 311 | 1430 | 553 | 2230 | 1940 | 2880 | 12700 | 1430 | 1330 | 77 |
13 | 67 | 95 | 261 | 1150 | 765 | 1830 | 1660 | 2420 | 11900 | 1170 | 1020 | 73 |
14 | 59 | 97 | 229 | 986 | 712 | 1740 | 1780 | 2230 | 11200 | 1020 | 744 | 79 |
15 | 65 | 100 | 212 | 883 | 609 | 1720 | 2270 | 1740 | 14800 | e910 | 613 | 86 |
16 | 93 | 99 | 196 | 846 | 563 | 1690 | 1860 | 1500 | 20400 | e810 | 564 | 90 |
17 | 62 | 95 | 192 | 732 | 622 | 3010 | 1620 | 1340 | 17600 | e720 | 591 | 85 |
18 | 70 | 98 | 178 | 656 | 1100 | 8770 | 1400 | 1230 | e11500 | e630 | 538 | 88 |
19 | 72 | 93 | 165 | 573 | 1720 | 8750 | 1260 | 1310 | 9840 | e560 | 460 | 86 |
20 | 67 | 87 | 161 | 542 | 1480 | 9280 | 1180 | 5710 | 6680 | e511 | 392 | 137 |
21 | 58 | 92 | 157 | 522 | 1290 | 11100 | 1180 | 3200 | e4500 | 518 | 317 | 205 |
22 | 57 | 95 | 167 | 523 | 1120 | 9010 | 1290 | 2040 | 3150 | 760 | 254 | 146 |
23 | 56 | 93 | 165 | 534 | 1000 | 6320 | 1210 | 3050 | 3180 | 2340 | 227 | 138 |
24 | 62 | 92 | 270 | 492 | 947 | 4330 | 1050 | 4630 | 3440 | 1870 | 186 | 104 |
25 | 58 | 91 | 309 | 463 | 879 | 3190 | 991 | 4870 | 2380 | 1040 | 168 | 98 |
26 | 73 | 84 | 695 | 431 | 810 | 2590 | 968 | 3330 | 1900 | 716 | 160 | 97 |
27 | 88 | 77 | 582 | 421 | 825 | 2110 | 906 | 2200 | 1590 | 625 | 151 | 107 |
28 | 112 | 120 | 453 | 460 | 838 | 6990 | 804 | 1740 | 1390 | 551 | 144 | 88 |
29 | 131 | 118 | 383 | 581 | --- | 10900 | 1000 | 1470 | 1540 | 508 | 143 | 77 |
30 | 102 | 201 | 351 | 690 | --- | 7370 | 3600 | 1660 | 2270 | 471 | 150 | 78 |
31 | 86 | --- | 319 | 688 | --- | 4270 | --- | 1530 | --- | 416 | 132 | --- |
TOTAL | 2158 | 3049 | 8199 | 27407 | 21539 | 123039 | 59999 | 131610 | 158694 | 52116 | 40979 | 3001 |
MEAN | 69.6 | 102 | 264 | 884 | 769 | 3969 | 2000 | 4245 | 5290 | 1681 | 1322 | 100 |
MAX | 131 | 201 | 695 | 3160 | 1720 | 11100 | 4060 | 12900 | 20400 | 6780 | 6320 | 205 |
MIN | 51 | 77 | 144 | 259 | 420 | 537 | 804 | 1230 | 718 | 416 | 132 | 73 |
CFSM | .05 | .08 | .21 | .69 | .60 | 3.08 | 1.55 | 3.29 | 4.10 | 1.30 | 1.02 | .08 |
IN. | .06 | .09 | .24 | .79 | .62 | 3.55 | 1.73 | 3.80 | 4.58 | 1.50 | 1.18 | .09 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1915 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 333 | 590 | 884 | 1142 | 1412 | 1728 | 1878 | 1694 | 1225 | 770 | 416 | 260 |
MAX | 3346 | 5743 | 3593 | 6930 | 4818 | 5383 | 6846 | 7615 | 5290 | 4008 | 3049 | 2807 |
(WY) | 1978 | 1986 | 1991 | 1950 | 1982 | 1979 | 1994 | 1943 | 1998 | 1993 | 1979 | 1993 |
MIN | 12.8 | 22.8 | 27.3 | 27.8 | 39.6 | 59.6 | 190 | 83.7 | 43.3 | 26.6 | 17.9 | 14.4 |
(WY) | 1921 | 1921 | 1915 | 1977 | 1931 | 1931 | 1915 | 1934 | 1934 | 1934 | 1930 | 1920 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1915 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 364898 | 631790 | ||||
ANNUAL MEAN | 1000 | 1731 | 1025 | |||
HIGHEST ANNUAL MEAN | 2694 | 1993 | ||||
LOWEST ANNUAL MEAN | 139 | 1954 | ||||
HIGHEST DAILY MEAN | 12500 | Feb 27, 28 | 20400 | Jun 16 | 45100 | Apr 13 1994 |
LOWEST DAILY MEAN | 51 | Oct 8 | 51 | Oct 8 | 2.0 | A |
ANNUAL SEVEN-DAY MINIMUM | 57 | Oct 5 | 57 | Oct 5 | 2.1 | Oct 8 1920 |
INSTANTANEOUS PEAK FLOW | 24600 | Jun 16 | 48700 B | Mar 13 1939 | ||
INSTANTANEOUS PEAK STAGE | 23.82 C | Jun 16 | 31.56 D | Apr 13 1994 | ||
INSTANTANEOUS LOW FLOW | 47 | Oct 9 | ||||
ANNUAL RUNOFF (CFSM) | .77 | 1.34 | .79 | |||
ANNUAL RUNOFF (INCHES) | 10.52 | 18.22 | 10.80 | |||
10 PERCENT EXCEEDS | 2540 | 4570 | 2480 | |||
50 PERCENT EXCEEDS | 501 | 630 | 400 | |||
90 PERCENT EXCEEDS | 84 | 85 | 52 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |