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USGS Daily Statistics for Illinois
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.
Cook County, Illinois Hydrologic Unit Code 07120004
Latitude 42°00'43.5", Longitude 88°00'03.6"
NAD83
Drainage area 52.0 square miles Contributing drainage area 52.0 square miles Gage datum 664.92 feet above NAVD88 |
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00060, Discharge, cubic feet per second, | |||||||||||||
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Day of month |
Mean of daily mean values for each day for water year of record in, ft3/s
(Calculation Period 2015-10-01 -> 2024-09-30) Calculation period restricted by USGS staff due to special conditions at/near site |
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Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
1 | 116 | 62 | 190 | 224 | 476 | 132 | 77 | 39 | 52 | 65 | 80 | 113 | |
2 | 87 | 121 | 153 | 189 | 346 | 133 | 87 | 40 | 85 | 117 | 72 | 156 | |
3 | 100 | 142 | 121 | 165 | 371 | 83 | 102 | 38 | 93 | 152 | 68 | 141 | |
4 | 90 | 133 | 91 | 167 | 291 | 68 | 59 | 35 | 91 | 112 | 72 | 111 | |
5 | 69 | 118 | 113 | 167 | 197 | 146 | 91 | 32 | 81 | 93 | 81 | 108 | |
6 | 60 | 115 | 113 | 220 | 161 | 118 | 122 | 41 | 85 | 130 | 80 | 69 | |
7 | 65 | 117 | 99 | 176 | 119 | 77 | 74 | 64 | 64 | 100 | 61 | 58 | |
8 | 68 | 109 | 95 | 135 | 97 | 61 | 62 | 82 | 71 | 86 | 54 | 52 | |
9 | 75 | 100 | 123 | 95 | 143 | 100 | 45 | 64 | 68 | 58 | 49 | 56 | |
10 | 85 | 91 | 157 | 87 | 171 | 97 | 76 | 77 | 61 | 57 | 50 | 58 | |
11 | 126 | 69 | 107 | 96 | 177 | 69 | 56 | 67 | 77 | 137 | 60 | 75 | |
12 | 116 | 70 | 92 | 84 | 130 | 76 | 114 | 43 | 126 | 116 | 53 | 99 | |
13 | 81 | 61 | 109 | 85 | 111 | 84 | 142 | 40 | 152 | 73 | 48 | 80 | |
14 | 67 | 58 | 148 | 109 | 170 | 93 | 148 | 41 | 102 | 160 | 44 | 106 | |
15 | 69 | 71 | 127 | 131 | 285 | 78 | 167 | 55 | 89 | 187 | 49 | 143 | |
16 | 77 | 70 | 101 | 146 | 207 | 77 | 167 | 54 | 85 | 132 | 45 | 113 | |
17 | 116 | 108 | 90 | 96 | 211 | 60 | 105 | 60 | 70 | 93 | 47 | 72 | |
18 | 109 | 97 | 103 | 80 | 261 | 54 | 117 | 56 | 49 | 78 | 66 | 59 | |
19 | 79 | 77 | 95 | 73 | 149 | 58 | 118 | 49 | 57 | 46 | 65 | 52 | |
20 | 93 | 154 | 96 | 67 | 121 | 53 | 108 | 69 | 51 | 43 | 54 | 48 | |
21 | 81 | 207 | 77 | 78 | 163 | 135 | 139 | 61 | 61 | 39 | 67 | 56 | |
22 | 73 | 179 | 72 | 82 | 195 | 178 | 170 | 42 | 60 | 90 | 60 | 60 | |
23 | 84 | 202 | 86 | 100 | 129 | 283 | 175 | 34 | 82 | 116 | 54 | 70 | |
24 | 92 | 220 | 126 | 90 | 168 | 148 | 211 | 39 | 41 | 114 | 55 | 80 | |
25 | 98 | 174 | 145 | 94 | 131 | 181 | 189 | 69 | 39 | 151 | 71 | 62 | |
26 | 122 | 106 | 138 | 73 | 116 | 183 | 90 | 77 | 36 | 154 | 93 | 84 | |
27 | 111 | 127 | 101 | 77 | 106 | 196 | 61 | 71 | 54 | 199 | 126 | 97 | |
28 | 99 | 155 | 138 | 140 | 91 | 111 | 96 | 83 | 102 | 121 | 117 | 84 | |
29 | 93 | 59 | 139 | 202 | 113 | 161 | 127 | 138 | 90 | 130 | 107 | 122 | |
30 | 73 | 175 | 318 | 103 | 165 | 87 | 142 | 77 | 125 | 77 | 129 | ||
31 | 62 | 244 | 145 | 47 | 91 | 101 | 109 |