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 | .65 | e.70 | 32 | e7.2 | 30 | 78 | 333 | 104 | 33 | 66 | 45 | 14 |
2 | .63 | e.70 | 8.2 | e8.0 | 29 | 60 | 125 | 164 | 31 | 36 | 28 | 14 |
3 | .59 | e.74 | 4.5 | e9.0 | 26 | 53 | 208 | 390 | 28 | 29 | 22 | 10 |
4 | .40 | e.85 | 3.9 | 11 | 24 | 51 | 816 | 316 | 38 | 25 | 24 | 8.2 |
5 | .41 | e1.0 | 3.9 | 15 | 23 | 59 | 182 | 116 | 180 | 23 | 1150 | 6.8 |
6 | .48 | e3.0 | 2.7 | 88 | 23 | 55 | 111 | 82 | 70 | 21 | 648 | 6.2 |
7 | .40 | 6.8 | 2.3 | 55 | 22 | 47 | 91 | 125 | 42 | 344 | 159 | 6.1 |
8 | .43 | 5.8 | e1.9 | 768 | 21 | 521 | 81 | 249 | 165 | 500 | 88 | 5.6 |
9 | .29 | 4.8 | e2.2 | 729 | 20 | 1010 | 70 | 95 | 732 | 67 | 60 | 5.1 |
10 | .39 | 3.4 | e2.5 | 104 | 20 | 330 | 64 | 64 | 197 | 265 | 46 | 5.0 |
11 | 1.2 | 3.4 | e2.0 | 60 | 25 | 103 | 57 | 52 | 122 | 1580 | 38 | 4.9 |
12 | 1.2 | 2.6 | e1.8 | 46 | 40 | 69 | 52 | 46 | 794 | 190 | 33 | 4.8 |
13 | 1.2 | 2.6 | e1.5 | 39 | 38 | 72 | 52 | 43 | 922 | 67 | 28 | 4.8 |
14 | 2.1 | 3.6 | e1.3 | 34 | 29 | 77 | 81 | 47 | 1030 | 49 | 26 | 4.8 |
15 | 2.2 | 3.2 | e1.2 | 54 | 25 | 71 | 819 | 38 | 2720 | 42 | 24 | 8.3 |
16 | 2.4 | 3.3 | e1.1 | 48 | 35 | 60 | 4400 | 35 | 1160 | 39 | 21 | 6.4 |
17 | 1.9 | 3.8 | e1.0 | 37 | 474 | 410 | 742 | 31 | 1590 | 35 | 20 | 7.7 |
18 | 1.5 | 4.4 | e.90 | e30 | 854 | 1740 | 152 | 29 | 153 | 32 | 19 | 8.3 |
19 | e1.1 | 4.2 | e.80 | e25 | 163 | 400 | 117 | 27 | 141 | 30 | 21 | 7.6 |
20 | e.80 | e3.5 | e.75 | e23 | 97 | 4320 | 97 | 26 | 90 | 27 | 19 | 6.8 |
21 | e.70 | e2.7 | e.90 | e24 | 78 | 3800 | 87 | 26 | 227 | 24 | 15 | 6.1 |
22 | e.58 | e2.2 | e3.5 | 26 | 63 | 344 | 78 | 1190 | 117 | 93 | 14 | 5.6 |
23 | e.50 | e1.8 | e20 | 27 | 55 | 154 | 71 | 2200 | 147 | 780 | 13 | 5.4 |
24 | e1.1 | e1.5 | e16 | 27 | 49 | 115 | 64 | 204 | 62 | 109 | 12 | 5.0 |
25 | e2.0 | e1.3 | 67 | 26 | 43 | 98 | 59 | 103 | 48 | 49 | 11 | 431 |
26 | e1.4 | e1.1 | 42 | 27 | 42 | 88 | 57 | 92 | 39 | 34 | 9.9 | 105 |
27 | e1.1 | e1.0 | 22 | 52 | 281 | 92 | 50 | 64 | 34 | 30 | 8.9 | 29 |
28 | e1.0 | e.90 | 12 | 70 | 130 | 1680 | 48 | 53 | 30 | 26 | 8.7 | 15 |
29 | e.90 | e1.0 | e8.5 | 57 | --- | 1660 | 112 | 45 | 32 | 22 | 9.1 | 10 |
30 | e.84 | e15 | e7.0 | 45 | --- | 163 | 116 | 41 | 237 | e350 | 8.3 | 8.5 |
31 | e.76 | --- | e6.5 | 34 | --- | 140 | --- | 37 | --- | e130 | 9.6 | --- |
TOTAL | 31.15 | 90.89 | 281.85 | 2605.2 | 2759 | 17920 | 9392 | 6134 | 11211 | 5114 | 2638.5 | 766.0 |
MEAN | 1.00 | 3.03 | 9.09 | 84.0 | 98.5 | 578 | 313 | 198 | 374 | 165 | 85.1 | 25.5 |
MAX | 2.4 | 15 | 67 | 768 | 854 | 4320 | 4400 | 2200 | 2720 | 1580 | 1150 | 431 |
MIN | .29 | .70 | .75 | 7.2 | 20 | 47 | 48 | 26 | 28 | 21 | 8.3 | 4.8 |
CFSM | .01 | .02 | .06 | .55 | .65 | 3.80 | 2.06 | 1.30 | 2.46 | 1.09 | .56 | .17 |
IN. | .01 | .02 | .07 | .64 | .68 | 4.39 | 2.30 | 1.50 | 2.74 | 1.25 | .65 | .19 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 28.1 | 118 | 214 | 144 | 228 | 286 | 240 | 186 | 109 | 68.7 | 27.8 | 41.5 |
MAX | 276 | 666 | 1443 | 617 | 775 | 1024 | 825 | 1058 | 429 | 305 | 113 | 444 |
(WY) | 1987 | 1986 | 1983 | 1974 | 1985 | 1978 | 1994 | 1990 | 1973 | 1982 | 1979 | 1993 |
MIN | .42 | 1.93 | 3.44 | 1.94 | 16.4 | 20.4 | 20.9 | 10.9 | 2.63 | 2.46 | .43 | .056 |
(WY) | 1989 | 1972 | 1990 | 1977 | 1978 | 1981 | 1986 | 1988 | 1988 | 1988 | 1988 | 1988 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1971 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 31735.22 | 58943.59 | ||||
ANNUAL MEAN | 86.9 | 161 | 140 | |||
HIGHEST ANNUAL MEAN | 254 | 1984 | ||||
LOWEST ANNUAL MEAN | 28.9 | 1992 | ||||
HIGHEST DAILY MEAN | 5990 | Feb 27 | 4400 | Apr 16 | 13800 | Dec 25 1982 |
LOWEST DAILY MEAN | .29 | Oct 9 | .29 | Oct 9 | .00 | A |
ANNUAL SEVEN-DAY MINIMUM | .40 | Oct 4 | .40 | Oct 4 | .00 | Aug 12 1988 |
INSTANTANEOUS PEAK FLOW | 6850 | Mar 20 | 17900 B | Dec 25 1982 | ||
INSTANTANEOUS PEAK STAGE | 18.12 | Mar 20 | 20.91 C | May 26 1990 | ||
INSTANTANEOUS LOW FLOW | .24 | Oct 9 | ||||
ANNUAL RUNOFF (CFSM) | .57 | 1.06 | .92 | |||
ANNUAL RUNOFF (INCHES) | 7.77 | 14.43 | 12.55 | |||
10 PERCENT EXCEEDS | 142 | 337 | 200 | |||
50 PERCENT EXCEEDS | 17 | 31 | 22 | |||
90 PERCENT EXCEEDS | 1.1 | 1.2 | 2.3 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |