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USGS Daily Statistics for Illinois

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The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 05527950 MILL CREEK AT OLD MILL CREEK, IL


Lake County, Illinois
Hydrologic Unit Code 07120004
Latitude  42°24'55", Longitude  87°58'09" NAD83
Drainage area 61.0  square miles
Gage datum 668.00 feet above NGVD29
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1989-10-01 -> 2022-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 52 44 88 136 136 69 51 18 12 16 32 54
2 47 48 89 115 121 76 44 16 13 32 37 66
3 46 54 92 109 110 65 49 17 22 29 36 61
4 49 60 86 104 99 66 46 17 19 27 35 57
5 46 58 95 96 92 68 40 16 18 25 39 53
6 46 59 90 97 83 61 36 16 17 35 42 49
7 48 63 89 90 78 55 33 21 15 29 37 49
8 46 63 93 93 73 65 33 19 14 28 35 47
9 46 76 99 114 86 80 36 16 13 24 39 43
10 44 67 120 120 95 72 37 16 18 23 41 44
11 47 65 132 122 91 81 34 16 17 30 44 47
12 44 67 127 116 90 88 73 14 32 27 42 48
13 51 56 144 107 113 94 54 13 50 25 39 46
14 52 57 140 106 115 87 48 13 39 28 36 52
15 45 54 130 119 127 79 46 11 35 27 35 53
16 41 52 122 129 105 87 43 11 31 24 34 50
17 47 53 112 118 111 69 41 11 31 22 32 46
18 46 61 109 135 121 64 52 16 31 23 34 42
19 42 69 103 125 113 83 49 21 29 21 33 40
20 44 92 98 149 115 90 44 31 27 20 32 38
21 42 102 102 137 114 79 43 26 26 18 32 39
22 48 84 103 128 116 79 40 24 26 17 31 43
23 53 81 105 135 106 72 38 28 26 27 33 48
24 56 90 100 115 98 67 41 25 22 34 31 45
25 52 90 100 106 92 60 33 22 20 32 31 48
26 48 83 102 112 91 61 28 21 20 30 40 48
27 46 88 109 117 87 71 36 20 19 42 52 63
28 47 79 115 107 83 58 29 19 21 34 51 62
29 46 66 114 123 79 55 24 19 21 31 52 58
30 49   110 132 74 63 20 16 19 35 52 60
31 45   127   72   20 14   36   57