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 | 2890 | 4890 | 4690 | 3500 | 39500 | 18400 | 8840 | 26600 | 8240 | 4790 | 2390 | 1780 |
2 | 2880 | 4720 | 4660 | 2480 | 36000 | 23000 | 8760 | 24400 | 14200 | 4610 | 2220 | 1650 |
3 | 2740 | 4900 | 4670 | 1760 | 33400 | 24400 | 8570 | 20900 | 19800 | 4520 | 2200 | 1600 |
4 | 2700 | 4970 | 4530 | 1690 | 31800 | 25700 | 8480 | 18000 | 22400 | 4480 | 2240 | 1560 |
5 | 2910 | 4810 | 4410 | e1630 | 30300 | 26900 | 8300 | 15900 | 22200 | 4260 | 2090 | 1510 |
6 | 3680 | 4880 | 4350 | e1620 | 28600 | 28200 | 8450 | 14700 | 20200 | 4080 | 2110 | 1460 |
7 | 4360 | 4750 | 4680 | e1620 | 30800 | 29100 | 8350 | 13700 | 17500 | 3840 | 2040 | 1320 |
8 | 5020 | 4660 | 4970 | e1610 | 41700 | 29400 | 8120 | 13100 | 13800 | 3590 | 2000 | 1230 |
9 | 5100 | 4660 | 4870 | e1600 | 46100 | 29500 | 8050 | 12200 | 10900 | 3350 | 2000 | 1170 |
10 | 7070 | 5320 | 4620 | e1600 | 43600 | 28900 | 8330 | 11100 | 9460 | 3110 | 1990 | 1150 |
11 | 7620 | 8280 | 4570 | e1600 | 40700 | 26700 | 8560 | 10200 | 8520 | 2910 | 1980 | 1150 |
12 | 7080 | 9890 | 4500 | e1610 | 39200 | 23500 | 9290 | 9590 | 8610 | 2790 | 1970 | 1150 |
13 | 6480 | 11300 | 4270 | e1640 | 37000 | 21200 | 11700 | 9330 | 8740 | 2660 | 1990 | 1130 |
14 | 5640 | 11000 | 4190 | e1720 | 34000 | 19100 | 12000 | 10800 | 9170 | 2550 | 2110 | 1140 |
15 | 4830 | 9540 | 4180 | e1920 | 31800 | 17200 | 11600 | 13500 | 11300 | 2480 | 2740 | 1310 |
16 | 4260 | 8380 | 4190 | e2400 | 29700 | 15800 | 14000 | 12800 | 11000 | 2390 | 2910 | 1390 |
17 | 3780 | 7300 | 4070 | e3500 | 27700 | 15300 | 25300 | 11800 | 9520 | 2380 | 2460 | 1670 |
18 | 3830 | 6280 | 3980 | e5000 | 25500 | 17400 | 30500 | 10900 | 8380 | 2640 | 2220 | 1890 |
19 | 4130 | 5870 | 3990 | e8000 | 23600 | 20900 | 33100 | 9940 | 7430 | 2820 | 2070 | 1980 |
20 | 4290 | 5470 | 3790 | e11500 | 22000 | 23000 | 35400 | 9710 | 6630 | 4350 | 1910 | 2010 |
21 | 4160 | 5170 | 3930 | e16000 | 20200 | 23000 | 36500 | 9140 | 6060 | 4570 | 1850 | 2030 |
22 | 4080 | 5010 | 4000 | 32400 | 17900 | 22000 | 36000 | 9090 | 5630 | 3510 | 1890 | 2100 |
23 | 4110 | 4740 | 3930 | 50800 | 16500 | 19900 | 32800 | 10700 | 5310 | 3540 | 1830 | 2060 |
24 | 4010 | 4640 | 3930 | 60300 | 15600 | 16900 | 29400 | 11500 | 5470 | 3380 | 1790 | 1960 |
25 | 3990 | 4540 | 3630 | 61800 | 14800 | 14000 | 27500 | 11100 | 5340 | 3120 | 1800 | 1880 |
26 | 3850 | 4600 | 3580 | 66500 | 13100 | 12200 | 27800 | 11600 | 5290 | 2840 | 1800 | 1840 |
27 | 3910 | 4740 | 3820 | 70200 | 12100 | 11300 | 28400 | 12800 | 5370 | 2740 | 1760 | 1860 |
28 | 3860 | 4920 | 4000 | 66900 | 15500 | 10500 | 27800 | 11900 | 5100 | 2680 | 1810 | 1860 |
29 | 3880 | 4860 | 4160 | 59600 | --- | 10100 | 26700 | 10400 | 5170 | 2550 | 1940 | 2100 |
30 | 4360 | 4720 | 4190 | 51100 | --- | 9900 | 26700 | 9210 | 4890 | 2490 | 1990 | 2240 |
31 | 4880 | --- | 4010 | 44100 | --- | 9300 | --- | 8550 | --- | 2520 | 1810 | --- |
TOTAL | 136380 | 179810 | 131360 | 637700 | 798700 | 622700 | 575300 | 395160 | 301630 | 102540 | 63910 | 49180 |
MEAN | 4399 | 5994 | 4237 | 20570 | 28520 | 20090 | 19180 | 12750 | 10050 | 3308 | 2062 | 1639 |
MAX | 7620 | 11300 | 4970 | 70200 | 46100 | 29500 | 36500 | 26600 | 22400 | 4790 | 2910 | 2240 |
MIN | 2700 | 4540 | 3580 | 1600 | 12100 | 9300 | 8050 | 8550 | 4890 | 2380 | 1760 | 1130 |
CFSM | .36 | .49 | .35 | 1.68 | 2.33 | 1.64 | 1.56 | 1.04 | .82 | .27 | .17 | .13 |
IN. | .41 | .55 | .40 | 1.93 | 2.42 | 1.89 | 1.75 | 1.20 | .91 | .31 | .19 | .15 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1928 - 1999, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 4636 | 6778 | 10300 | 14010 | 15630 | 18950 | 19270 | 15600 | 12000 | 8199 | 5049 | 4040 |
MAX | 18880 | 40220 | 44490 | 77540 | 47990 | 51250 | 41940 | 64810 | 44130 | 27840 | 21330 | 21440 |
(WY) | 1991 | 1993 | 1928 | 1950 | 1950 | 1982 | 1938 | 1943 | 1958 | 1957 | 1958 | 1989 |
MIN | 1103 | 1405 | 1145 | 1216 | 1998 | 2645 | 5250 | 2405 | 1492 | 1292 | 1002 | 966 |
(WY) | 1957 | 1954 | 1964 | 1977 | 1963 | 1941 | 1931 | 1934 | 1934 | 1936 | 1941 | 1941 |
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1928 - 1999 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 6024730 | 3994370 | ||||
ANNUAL MEAN | 16510 | 10940 | 11180 | |||
HIGHEST ANNUAL MEAN | 22800 | 1950 | ||||
LOWEST ANNUAL MEAN | 2864 | 1931 | ||||
HIGHEST DAILY MEAN | 83300 | Jun 17 | 70200 | Jan 27 | 186000 | May 20 1943 |
LOWEST DAILY MEAN | 2700 | Oct 4 | 1130 | Sep 13 | 701 | Aug 3 1934 |
ANNUAL SEVEN-DAY MINIMUM | 2880 | Sep 29 | 1160 | Sep 8 | 732 | Sep 24 1941 |
INSTANTANEOUS PEAK FLOW | 71000 | Jan 27 | 189000 | May 20 1943 | ||
INSTANTANEOUS PEAK STAGE | 22.42 | Jan 27 | 30.50 | May 20 1943 | ||
ANNUAL RUNOFF (CFSM) | 1.35 | .89 | .91 | |||
ANNUAL RUNOFF (INCHES) | 18.28 | 12.12 | 12.39 | |||
10 PERCENT EXCEEDS | 34000 | 28700 | 27600 | |||
50 PERCENT EXCEEDS | 10100 | 5000 | 6460 | |||
90 PERCENT EXCEEDS | 3990 | 1840 | 1980 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |