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 | 4430 | 8160 | 7290 | e4900 | e14500 | 9160 | 6630 | 24300 | 13100 | 9920 | 6970 | 4660 |
2 | 4370 | 7780 | 6780 | e4400 | e14000 | 9180 | 6580 | 23000 | 14200 | 9570 | 7080 | 4500 |
3 | 4560 | 7600 | 6570 | e4100 | e13000 | 8740 | 6500 | 21600 | 15300 | 9430 | 7010 | 4270 |
4 | 4620 | 7210 | 6860 | e3700 | e15000 | 8820 | 6450 | 20200 | 15800 | 9120 | 6860 | 4370 |
5 | 5300 | 7070 | 6490 | e3500 | e15500 | 8870 | 6330 | 19300 | 15200 | 8170 | 6920 | 4110 |
6 | 6430 | 6900 | 6620 | e3700 | e15000 | 8940 | 6750 | 18300 | 14000 | 8120 | 6730 | 3860 |
7 | 6810 | 6830 | 7200 | e4000 | e14000 | 8700 | 6800 | 17900 | 14000 | 7970 | 6240 | 3770 |
8 | 8100 | 6070 | 8240 | e3900 | e13500 | 8420 | 7250 | 18300 | 13300 | 7610 | 7020 | 3620 |
9 | 7670 | 6240 | 7910 | e3800 | e13000 | 8180 | 7580 | 17900 | 12500 | 7150 | 6450 | 3550 |
10 | 6700 | 7790 | 8080 | e3700 | e12600 | 8050 | 8050 | 16800 | 11900 | 7040 | 6450 | 3370 |
11 | 7040 | 11200 | 7930 | e3600 | e12000 | 8080 | 9170 | 13900 | 11300 | 6930 | 6240 | 2970 |
12 | 6990 | 12500 | 7640 | e3500 | e11600 | 7890 | 9890 | 14400 | 13000 | 6510 | 6310 | 2700 |
13 | 6800 | 11000 | 7390 | e3450 | e13500 | 7730 | 10200 | 17300 | 16100 | 6160 | 6880 | 2800 |
14 | 6420 | 10300 | 7190 | e3400 | e15000 | 7560 | 10200 | 20100 | 19400 | 6220 | 6300 | 3000 |
15 | 6260 | 10100 | 7110 | e3300 | e14000 | 7530 | 10500 | 18700 | 24000 | 5880 | 6310 | 3000 |
16 | 5990 | 9710 | 6570 | e3300 | e14000 | 7510 | 11500 | 16300 | 28300 | 5680 | 6230 | 2930 |
17 | 6530 | 9350 | 7210 | e3200 | e14000 | 7780 | 13800 | 15000 | 29800 | 5140 | 6160 | 2900 |
18 | 12800 | 9180 | 6240 | e3100 | e13500 | 8490 | 15200 | 15000 | 27000 | 5380 | 6030 | 3120 |
19 | 18100 | 8260 | 7100 | e3100 | e13000 | 9260 | 14600 | 15500 | 22300 | 5610 | 5930 | 3220 |
20 | 17900 | 8250 | 6610 | e3100 | e12500 | 9180 | 13600 | 16800 | 18800 | 5730 | 5550 | 3200 |
21 | 15600 | 8140 | 6380 | e3400 | e12000 | 9010 | 12900 | 17300 | 16900 | 5850 | 5680 | 3270 |
22 | 13100 | 7860 | 6020 | e4000 | e11200 | 8870 | 12400 | 16400 | 15100 | 7840 | 5580 | 3240 |
23 | 12300 | 7680 | e5700 | e5000 | e10700 | 8520 | 17100 | 17200 | 14300 | 7390 | 5400 | 3190 |
24 | 11400 | 7500 | e5350 | e6600 | e10000 | 8160 | 24200 | 17800 | 15000 | 7450 | 5980 | 3110 |
25 | 9450 | 7450 | e5050 | e9000 | e9700 | 7920 | 29300 | 17500 | 13800 | 7700 | 6430 | 2810 |
26 | 8580 | 7270 | e5000 | e12000 | 9350 | 7590 | 29400 | 16700 | 13100 | 7690 | 8210 | 2670 |
27 | 9020 | 6990 | e5200 | e14500 | 9140 | 7310 | 26700 | 15800 | 12100 | 7730 | 6260 | 2820 |
28 | 8690 | 7580 | e5500 | e17000 | 8990 | 7220 | 24400 | 15400 | 11500 | 7970 | 6250 | 4190 |
29 | 8540 | 6580 | e6000 | e16000 | --- | 7050 | 23600 | 15100 | 10900 | 7800 | 5930 | 5780 |
30 | 8500 | 6900 | e5800 | e15600 | --- | 6810 | 24400 | 14300 | 9940 | 7380 | 5480 | 8260 |
31 | 8020 | --- | e5350 | e15000 | --- | 6630 | --- | 13900 | --- | 7280 | 5090 | --- |
TOTAL | 267020 | 245450 | 204380 | 190850 | 354280 | 253160 | 411980 | 538000 | 481940 | 225420 | 195960 | 109260 |
MEAN | 8614 | 8182 | 6593 | 6156 | 12650 | 8166 | 13730 | 17350 | 16060 | 7272 | 6321 | 3642 |
MAX | 18100 | 12500 | 8240 | 17000 | 15500 | 9260 | 29400 | 24300 | 29800 | 9920 | 8210 | 8260 |
MIN | 4370 | 6070 | 5000 | 3100 | 8990 | 6630 | 6330 | 13900 | 9940 | 5140 | 5090 | 2670 |
CFSM | .90 | .86 | .69 | .64 | 1.33 | .86 | 1.44 | 1.82 | 1.68 | .76 | .66 | .38 |
IN. | 1.04 | .96 | .80 | .74 | 1.38 | .99 | 1.60 | 2.10 | 1.88 | .88 | .76 | .43 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 4519 | 5192 | 5025 | 5282 | 6351 | 10860 | 10890 | 8504 | 7129 | 5767 | 4384 | 4169 |
MAX | 17110 | 16700 | 14780 | 15820 | 14030 | 22500 | 26950 | 26030 | 22780 | 24000 | 12420 | 13470 |
(WY) | 1987 | 1986 | 1983 | 1973 | 1997 | 1948 | 1993 | 1973 | 1996 | 1993 | 1993 | 1972 |
MIN | 1381 | 1626 | 1519 | 1172 | 1554 | 2803 | 3877 | 2032 | 2052 | 1902 | 1349 | 1084 |
(WY) | 1957 | 1950 | 1959 | 1940 | 1940 | 1954 | 1940 | 1958 | 1977 | 1965 | 1958 | 1958 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1940 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 3352560 | 3477700 | ||||
ANNUAL MEAN | 9185 | 9528 | 6503 | |||
HIGHEST ANNUAL MEAN | 14560 | 1993 | ||||
LOWEST ANNUAL MEAN | 2587 | 1964 | ||||
HIGHEST DAILY MEAN | 22500 | Apr 19 | 29800 | Jun 17 | 44700 | Mar 22 1948 |
LOWEST DAILY MEAN | 3300 A | Jan 16 | 2670 | Sep 26 | 834 | Jan 3 1940 |
ANNUAL SEVEN-DAY MINIMUM | 3580 | Jan 25 | 2900 | Sep 11 | 977 | Jan 1 1940 |
INSTANTANEOUS PEAK FLOW | 30400 | Jun 17 | 46500 B | Mar 26 1993 | ||
INSTANTANEOUS PEAK STAGE | 15.45 | Jun 17 | 18.88 C | Feb 23 1997 | ||
INSTANTANEOUS LOW FLOW | 2630 D | Sep 26 | ||||
ANNUAL RUNOFF (CFSM) | .96 | 1.00 | .68 | |||
ANNUAL RUNOFF (INCHES) | 13.06 | 13.55 | 9.25 | |||
10 PERCENT EXCEEDS | 16900 | 16800 | 13000 | |||
50 PERCENT EXCEEDS | 7860 | 7780 | 4950 | |||
90 PERCENT EXCEEDS | 4360 | 3790 | 2000 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |