DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 5470 | 10500 | 8840 | e5600 | 59400 | 32100 | 20500 | 58800 | 40200 | 39500 | 10100 | 8500 |
2 | 6020 | 12200 | 9640 | e6000 | 60900 | 30800 | 19900 | 58400 | 40800 | 38500 | 10400 | 7700 |
3 | 6350 | 17300 | 9170 | e5600 | 61300 | 29700 | 20800 | 58200 | 40500 | 36900 | 11000 | 7570 |
4 | 6240 | 22400 | 9350 | e5700 | 61500 | 28800 | 21500 | 57500 | 40900 | 34800 | 9990 | 7100 |
5 | 7090 | 18700 | 10500 | e5800 | 61200 | 28300 | 21500 | 57300 | 41200 | 32700 | 8510 | 7040 |
6 | 7920 | 13200 | 9940 | e6000 | 60900 | 29100 | 21000 | 56200 | 41600 | 30500 | 8020 | 6860 |
7 | 8360 | 9650 | 13900 | e6000 | 59600 | 29900 | 20200 | 54300 | 42000 | 28500 | 8510 | 6760 |
8 | 8310 | 8730 | 17800 | e5900 | 59600 | 29300 | 20500 | 53200 | 41900 | 26600 | 8610 | 7200 |
9 | 7680 | 9700 | 17600 | e6200 | 59500 | 28700 | 21000 | e51500 | 41700 | e24000 | 8960 | 6790 |
10 | 9340 | 14600 | 16400 | e5900 | 55200 | 28600 | 21000 | e50500 | 41600 | 21300 | 8270 | 6660 |
11 | 8700 | 18400 | 15900 | e5500 | 55200 | 28500 | 21200 | 49700 | 42100 | 18200 | 7590 | 6430 |
12 | 7210 | 20100 | 16100 | e5400 | 54900 | 28800 | 21800 | 49100 | 42200 | 16100 | 8090 | 5230 |
13 | e7200 | 22300 | 15600 | e6500 | 54600 | 29000 | 21900 | 48900 | 41800 | 15600 | 11000 | 5320 |
14 | 6470 | 22600 | 14600 | e6100 | 54100 | 28900 | 23000 | 50000 | 42000 | 15300 | 11600 | 6140 |
15 | 6590 | 21200 | 13400 | e6000 | 53400 | 29300 | 25300 | 51600 | 42800 | 13500 | 11900 | 5260 |
16 | 6290 | 19300 | 10800 | e6500 | 51800 | 28600 | 31600 | 53200 | 44300 | 11900 | 11500 | 5330 |
17 | 7270 | 16700 | 10500 | e7000 | 50700 | 26900 | 33600 | 55100 | 46300 | 11100 | 10500 | 5680 |
18 | 7270 | 16700 | 11200 | e7200 | 49300 | 26400 | 36100 | 57300 | 47800 | 10500 | 9520 | 5810 |
19 | 9400 | 15400 | 9800 | e7200 | 47600 | 28000 | 38800 | 58400 | 49100 | 10100 | 9150 | 6200 |
20 | 16100 | 14500 | 9550 | e8600 | 45700 | 29100 | 40700 | 58300 | 49600 | 11200 | 8290 | 4940 |
21 | 20000 | 14900 | 9720 | e8800 | 44100 | 29700 | 42500 | 56800 | 49600 | 14700 | 8580 | 5650 |
22 | 20000 | 13200 | 9070 | e15000 | 42100 | 30000 | 44900 | 55200 | 49100 | 14200 | 7710 | 5380 |
23 | 18700 | 10500 | 8720 | 32600 | 40600 | 30100 | 47300 | 53000 | 47900 | 13300 | 8210 | 5660 |
24 | 17600 | 10000 | 8210 | 35800 | 38800 | 29600 | 49300 | 51100 | 47300 | 12400 | 8810 | 5390 |
25 | 16000 | 11300 | 7300 | 38900 | 37300 | 29200 | 50500 | 49500 | 45800 | 11600 | 9930 | 5450 |
26 | 14000 | 10200 | 6930 | 42400 | 35800 | 28800 | 51200 | 48100 | 44600 | 11000 | 10200 | 5760 |
27 | 12100 | 9860 | 8100 | 45500 | 34700 | 28000 | 52500 | 46900 | 43400 | 10500 | 9960 | 5150 |
28 | 10900 | 9970 | 7340 | 48700 | 33100 | 27200 | 54300 | 45000 | 42300 | 11300 | 10000 | 5220 |
29 | 11300 | 9910 | 6680 | 51800 | --- | 26200 | 56600 | 43500 | 41200 | 11600 | 9770 | 6860 |
30 | 11200 | 9940 | e7000 | 54900 | --- | 24400 | 58500 | 42100 | 39600 | 10600 | 9610 | 11200 |
31 | 11000 | --- | e7200 | 57400 | --- | e22000 | --- | 41200 | --- | 10100 | 9190 | --- |
TOTAL | 318080 | 433960 | 336860 | 556500 | 1422900 | 884000 | 1009500 | 1619900 | 1311200 | 578100 | 293480 | 190240 |
MEAN | 10260 | 14470 | 10870 | 17950 | 50820 | 28520 | 33650 | 52250 | 43710 | 18650 | 9467 | 6341 |
MAX | 20000 | 22600 | 17800 | 57400 | 61500 | 32100 | 58500 | 58800 | 49600 | 39500 | 11900 | 11200 |
MIN | 5470 | 8730 | 6680 | 5400 | 33100 | 22000 | 19900 | 41200 | 39600 | 10100 | 7590 | 4940 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1939 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 12830 | 14480 | 18040 | 20120 | 24570 | 33820 | 37960 | 36760 | 29970 | 21540 | 13900 | 11470 |
MAX | 54840 | 48900 | 78130 | 59540 | 67060 | 94940 | 93800 | 78160 | 87690 | 60820 | 50850 | 62870 |
(WY) | 1994 | 1986 | 1983 | 1993 | 1974 | 1985 | 1979 | 1970 | 1974 | 1993 | 1981 | 1993 |
MIN | 4258 | 5519 | 5923 | 4808 | 4144 | 10870 | 10010 | 11170 | 6207 | 6649 | 5709 | 5164 |
(WY) | 1965 | 1957 | 1963 | 1963 | 1963 | 1964 | 1956 | 1988 | 1988 | 1988 | 1941 | 1976 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1939 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 11647930 | 8954720 | ||||
ANNUAL MEAN | 31910 | 24530 | 22940 | |||
HIGHEST ANNUAL MEAN | 46810 | 1993 | ||||
LOWEST ANNUAL MEAN | 8977 | 1940 | ||||
HIGHEST DAILY MEAN | 76000 | May 16 | 61500 | Feb 4 | 123000 | May 27 1943 |
LOWEST DAILY MEAN | 5470 | Oct 1 | 4940 | Sep 20 | 1330 | Sep 2 1984 |
ANNUAL SEVEN-DAY MINIMUM | 5930 | Sep 27 | 5430 | Sep 22 | 2290 | Oct 8 1964 |
INSTANTANEOUS PEAK FLOW | 62400 A | Feb 4 | 123000 B | C | ||
INSTANTANEOUS PEAK STAGE | 17.55 D | May 3 | 28.61 B | May 26 1943 | ||
INSTANTANEOUS LOW FLOW | 4430 | Sep 20 | ||||
10 PERCENT EXCEEDS | 62600 | 52700 | 48100 | |||
50 PERCENT EXCEEDS | 30100 | 17600 | 16200 | |||
90 PERCENT EXCEEDS | 7320 | 6400 | 6560 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |