Water Data Report 1997
04197170 ROCK CREEK AT TIFFIN, OHIO
LOCATION.--Lat 41006'49", long 83010'06", Seneca County, Hydrologic Unit 04100011, on left bank 0.05 mi downstream
from bridge on Rebecca Street, at Heidelberg College, Tiffin, Ohio.
DRAINAGE AREA.--34.6 mi2.
PERIOD OF RECORD.--June 1983 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 740 ft above sea level, from topographic map.
REMARKS.--Records fair except for periods of estimated record, which are poor.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1.1 2.5 45 11 e7.6 75 38 9.6 1410 34 2.8 2.8
2 .94 2.1 56 10 e7.0 372 21 9.6 666 13 3.6 2.6
3 .93 2.0 17 11 17 97 16 21 107 8.6 2.8 2.6
4 1.0 1.9 9.2 12 250 42 16 58 60 7.0 8.8 2.4
5 1.1 1.9 7.2 52 518 32 24 26 34 6.0 7.5 2.4
6 1.0 1.9 6.4 48 65 85 35 40 24 5.4 3.9 2.4
7 1.1 3.2 5.8 13 26 68 17 26 19 5.2 3.2 2.3
8 1.1 3.1 5.5 e7.0 16 44 13 16 15 6.2 2.8 2.2
9 1.5 3.6 5.1 e6.0 12 35 11 18 14 336 2.6 2.3
10 1.4 4.0 4.8 e5.4 10 94 10 15 12 87 2.6 3.6
11 1.2 3.3 55 e5.0 9.4 43 9.9 13 12 20 2.4 2.5
12 1.4 2.7 246 e4.5 8.8 22 123 11 12 9.9 2.7 3.0
13 1.2 2.3 222 e4.3 9.0 16 154 10 13 7.4 3.7 3.0
14 1.2 2.2 54 e4.0 7.5 261 44 9.4 11 6.2 4.3 2.4
15 1.1 1.9 21 e4.5 7.2 121 24 9.3 10 5.9 3.4 2.1
16 1.3 2.0 15 e5.0 6.8 32 26 8.9 9.3 5.1 7.6 2.0
17 1.4 2.2 501 e5.6 6.3 21 200 8.4 8.4 4.7 95 2.0
18 3.6 2.2 272 e5.0 24 18 105 8.9 9.3 4.4 67 1.9
19 2.2 2.2 46 e4.2 119 15 38 120 8.7 4.1 22 2.2
20 1.9 2.1 e15 e3.8 71 14 21 83 8.3 3.8 8.8 16
21 1.9 2.1 e9.0 e4.1 125 13 16 22 9.5 3.6 5.7 43
22 1.5 1.9 e8.0 e100 123 12 14 13 13 4.2 4.4 9.7
23 2.3 1.8 e9.0 e140 41 11 12 10 11 4.3 3.4 4.9
24 2.2 2.0 268 e30 20 10 11 9.2 7.6 3.9 4.3 3.3
25 2.0 4.4 82 e35 14 11 10 914 10 3.8 6.1 2.6
26 1.9 e20 e25 e56 14 65 9.5 563 32 3.6 5.7 2.2
27 1.9 e11 e11 e13 1440 35 9.4 72 19 3.4 4.4 2.0
28 2.0 e6.0 e10 e120 370 18 10 30 9.5 3.3 3.5 2.1
29 2.0 3.7 22 e80 --- 240 9.9 22 24 3.1 2.9 1.7
30 3.3 3.8 19 e20 --- 100 9.5 31 124 2.9 2.8 1.5
31 2.5 --- 13 e9.0 --- 88 --- 508 --- 2.9 2.9 ---
TOTAL 51.17 106.0 2085.0 828.4 3344.6 2110 1057.2 2715.3 2722.6 618.9 303.6 135.7
MEAN 1.65 3.53 67.3 26.7 119 68.1 35.2 87.6 90.8 20.0 9.79 4.52
MAX 3.6 20 501 140 1440 372 200 914 1410 336 95 43
MIN .93 1.8 4.8 3.8 6.3 10 9.4 8.4 7.6 2.9 2.4 1.5
CFSM .05 .10 1.94 .77 3.45 1.97 1.02 2.53 2.62 .58 .28 .13
IN. .06 .11 2.24 .89 3.60 2.27 1.14 2.92 2.93 .67 .33 .15
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1984 - 1997, BY WATER YEAR (WY)
MEAN 10.8 34.2 40.1 37.0 61.8 51.5 54.7 31.2 20.4 14.6 6.19 12.1
MAX 50.3 145 172 98.5 122 138 92.7 87.6 90.8 82.0 28.1 99.5
(WY) 1991 1993 1991 1993 1990 1984 1994 1997 1997 1992 1990 1992
MIN 1.28 2.09 2.09 10.2 13.0 13.6 17.9 2.29 1.12 .55 1.37 .83
(WY) 1989 1995 1992 1992 1993 1989 1988 1988 1988 1988 1991 1995
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1984 - 1997
ANNUAL TOTAL 14370.44 16078.47
ANNUAL MEAN 39.3 44.1 31.0
HIGHEST ANNUAL MEAN 48.2 1984
LOWEST ANNUAL MEAN 11.6 1988
HIGHEST DAILY MEAN 961 Jan 18 1440 Feb 27 1440 Dec 30 1990
LOWEST DAILY MEAN .74 Aug 27 .93 Oct 3 .32 Jul 29 1988
ANNUAL SEVEN-DAY MINIMUM 1.0 Oct 1 1.0 Oct 1 .38 Jul 12 1988
INSTANTANEOUS PEAK FLOW 2230 Feb 27 2230 Feb 27 1997
INSTANTANEOUS PEAK STAGE 8.51 Feb 27 8.51 Feb 27 1997
INSTANTANEOUS LOW FLOW .93 Oct 3 .32 Jul 29 1988
ANNUAL RUNOFF (CFSM) 1.13 1.27 .90
ANNUAL RUNOFF (INCHES) 15.45 17.29 12.17
10 PERCENT EXCEEDS 71 90 61
50 PERCENT EXCEEDS 5.9 9.3 6.5
90 PERCENT EXCEEDS 1.4 2.0 1.4
e Estimated.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://pubsdata.usgs.gov/pubs/wdr/1997/oh-97-2/sw97/04197170.html
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