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USGS Daily Statistics for the Nation

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 05536000 NORTH BRANCH CHICAGO RIVER AT NILES, IL


Cook County, Illinois
Hydrologic Unit Code 07120003
Latitude  42°00'44", Longitude  87°47'45" NAD83
Drainage area 100  square miles
Gage datum 601.49 feet above NAVD88
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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 1950-10-01 -> 2024-09-30)

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 99 78 159 229 244 117 108 48 69 77 91 103
2 88 81 158 219 220 128 101 56 62 80 97 110
3 86 86 159 205 208 109 109 69 61 98 86 111
4 95 91 175 200 170 100 90 93 59 90 82 99
5 87 93 197 183 152 127 81 86 63 83 86 96
6 76 88 173 198 139 102 68 79 69 81 84 86
7 69 91 150 173 131 91 84 72 57 62 71 87
8 69 89 154 167 127 107 83 80 51 62 58 91
9 70 97 180 199 142 129 80 72 63 59 66 85
10 74 102 201 192 159 134 91 83 58 66 80 85
11 82 98 207 187 179 153 85 70 63 83 80 93
12 80 101 196 195 200 132 95 59 78 75 71 105
13 90 93 210 176 186 131 117 65 122 72 66 94
14 86 86 219 180 177 133 102 85 133 98 69 99
15 86 81 201 199 193 144 98 95 105 106 76 120
16 80 82 184 215 157 134 87 83 78 83 76 92
17 88 103 172 214 156 118 85 100 88 82 70 73
18 89 111 176 212 167 106 116 105 107 78 74 65
19 82 130 186 192 167 116 138 98 102 72 78 60
20 92 156 179 183 139 115 119 105 92 70 76 65
21 86 183 171 174 142 117 113 90 87 60 73 71
22 98 181 169 174 154 116 104 105 83 70 67 74
23 106 181 169 190 148 125 132 98 102 100 78 78
24 102 175 160 171 136 121 153 106 95 105 75 80
25 97 166 169 185 133 112 117 93 94 108 69 101
26 90 155 159 187 141 134 87 99 103 94 81 95
27 90 168 154 179 139 134 79 103 88 96 109 105
28 84 156 174 200 128 109 71 91 83 75 125 110
29 86 87 184 207 137 106 69 89 99 66 115 108
30 90   187 233 128 107 62 84 88 78 107 113
31 82   203   117   58 79   81   110