LOCATION.-- Lat 42°18'33", long 88°15'05" (NAD of 1927), in NW1/4 sec.12, T.44 N., R.8 E., McHenry County, Hydrologic Unit 07120006, on left bank of main channel, 30 ft downstream from Stratton Lock and Dam, 2.5 mi downstream from McHenry, and at mile 97.8. |
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DRAINAGE AREA.-- 1,250 mi2. |
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PERIOD OF RECORD.-- |
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STAGE: October 2002 to current year. |
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GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 730.15 ft above NGVD of 1929. |
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REMARKS.-- Stage regulated by Stratton Lock and Dam. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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STAGE: Maximum gage height, 2.85 ft, May 12, 13, 14, 2003; minimum, 0.28 ft, Sept. 4, 2003. |
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EXTREMES FOR CURRENT YEAR.-- Maximum gage height, 2.85 ft, May 12, 13, 14; minimum, 0.28 ft, Sept. 4. |
Gage height, feet, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | --- | 0.92 | 1.07 | 1.89 | 0.77 | 0.55 | 1.23 | 1.19 | 1.35 | 0.83 | 0.86 | 0.38 |
2 | --- | 0.94 | 1.05 | 1.50 | 0.77 | 0.52 | 1.29 | 1.49 | 1.36 | 0.80 | 0.90 | 0.38 |
3 | --- | 0.97 | 1.07 | 1.02 | 0.76 | 0.56 | 1.31 | 1.59 | 1.40 | 0.77 | 0.94 | 0.36 |
4 | --- | 0.98 | 1.07 | 1.00 | 0.75 | 0.55 | 1.36 | 1.64 | 1.40 | 0.77 | 1.02 | 0.35 |
5 | --- | 0.99 | 1.08 | 0.94 | 0.75 | 0.55 | 1.49 | 2.12 | 1.33 | 0.86 | 1.00 | 0.36 |
6 | --- | 0.98 | 1.09 | 0.89 | 0.74 | 0.57 | 1.50 | 2.61 | 1.31 | 0.94 | 0.92 | 0.37 |
7 | --- | 1.03 | 1.08 | 0.96 | 0.74 | 0.57 | 1.58 | 2.71 | 1.26 | 1.05 | 0.90 | 0.37 |
8 | 1.49 | 0.94 | 1.07 | 0.96 | 0.75 | 0.54 | 1.32 | 2.63 | 1.24 | 1.21 | 0.90 | 0.38 |
9 | 1.26 | 0.96 | 1.07 | 0.92 | 0.74 | 0.58 | 1.33 | 2.70 | 1.29 | 1.40 | 0.86 | 0.37 |
10 | 1.12 | 0.98 | 1.05 | 0.89 | 0.74 | 0.58 | 1.26 | 2.76 | 1.25 | 1.41 | 0.80 | 0.38 |
11 | 1.09 | 1.01 | 0.97 | 0.83 | 0.74 | 0.59 | 1.26 | 2.72 | 1.38 | 1.43 | 0.78 | 0.39 |
12 | 1.05 | 1.00 | 0.95 | 1.01 | 0.74 | 0.59 | 1.33 | 2.78 | 1.38 | 1.48 | 0.76 | 0.40 |
13 | 1.01 | 0.99 | 0.94 | 1.03 | 0.73 | 0.55 | 1.33 | 2.80 | 1.35 | 1.44 | 0.72 | 0.41 |
14 | 1.01 | 1.00 | 0.93 | 1.04 | 0.70 | 0.58 | 1.30 | 2.79 | 1.33 | 1.36 | 0.65 | 0.45 |
15 | 0.97 | 1.03 | 0.90 | 1.05 | 0.68 | 0.59 | 1.26 | 2.76 | 1.28 | 1.61 | 0.56 | 0.46 |
16 | 0.96 | 1.01 | 0.88 | 1.05 | 0.66 | 0.61 | 1.47 | 2.67 | 1.18 | 1.86 | 0.54 | 0.47 |
17 | 0.93 | 0.98 | 0.90 | 1.05 | 0.66 | 0.61 | 1.53 | 2.61 | 1.08 | 1.83 | 0.55 | 0.49 |
18 | 0.93 | 0.99 | 1.00 | 1.06 | 0.65 | 0.60 | 1.29 | 2.46 | 1.18 | 1.90 | 0.51 | 0.49 |
19 | 0.91 | 1.59 | 0.93 | 1.07 | 0.59 | 0.58 | 1.13 | 2.08 | 1.78 | 1.76 | 0.50 | 0.44 |
20 | 0.93 | 2.11 | 0.95 | 1.06 | 0.57 | 0.80 | 1.04 | 1.98 | 1.30 | 1.59 | 0.50 | 0.46 |
21 | 0.94 | 2.13 | 0.95 | 1.01 | 0.53 | 1.03 | 1.07 | 2.01 | 1.01 | 1.51 | 0.47 | 0.47 |
22 | 0.90 | 1.86 | 0.92 | 0.92 | 0.52 | 1.07 | 1.18 | 1.70 | 0.94 | 1.33 | 0.46 | 0.45 |
23 | 0.93 | 1.71 | 0.84 | 0.92 | 0.54 | 1.08 | 1.20 | 1.40 | 0.89 | 1.23 | 0.43 | 0.45 |
24 | 0.94 | 1.69 | 0.94 | 0.93 | 0.55 | 1.10 | 1.18 | 1.41 | 0.87 | 1.14 | 0.41 | 0.45 |
25 | 1.05 | 1.62 | 0.95 | 0.93 | 0.56 | 1.15 | 1.12 | 1.40 | 0.84 | 1.02 | 0.37 | 0.43 |
26 | 1.26 | 1.55 | 0.97 | 0.93 | 0.56 | 1.19 | 0.87 | 1.36 | 0.80 | 0.89 | 0.39 | 0.46 |
27 | 1.28 | 1.33 | 1.13 | 0.93 | 0.56 | 1.24 | 0.69 | 1.27 | 0.80 | 0.97 | 0.40 | 0.46 |
28 | 1.18 | 1.06 | 1.35 | 0.88 | 0.55 | 1.21 | 0.68 | 1.12 | 0.85 | 1.00 | 0.41 | 0.44 |
29 | 1.04 | 1.04 | 1.36 | 0.79 | --- | 1.22 | 0.75 | 1.01 | 0.84 | 0.94 | 0.37 | 0.45 |
30 | 0.99 | 0.92 | 1.33 | 0.77 | --- | 1.23 | 0.83 | 1.04 | 0.84 | 0.88 | 0.38 | 0.43 |
31 | 0.94 | --- | 1.52 | 0.78 | --- | 1.23 | --- | 1.35 | --- | 0.84 | 0.38 | --- |
MEAN | --- | 1.21 | 1.04 | 1.00 | 0.66 | 0.79 | 1.21 | 2.01 | 1.17 | 1.23 | 0.63 | 0.42 |
MAX | --- | 2.13 | 1.52 | 1.89 | 0.77 | 1.24 | 1.58 | 2.80 | 1.78 | 1.90 | 1.02 | 0.49 |
MIN | --- | 0.92 | 0.84 | 0.77 | 0.52 | 0.52 | 0.68 | 1.01 | 0.80 | 0.77 | 0.37 | 0.35 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |