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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 601.99 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 1950-10-01 -> 2021-09-30)

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 78 154 210 240 118 107 48 71 79 91 105
2 88 81 153 205 221 127 97 57 63 82 99 112
3 82 87 157 191 202 110 105 71 63 100 87 112
4 91 92 175 186 161 101 89 96 60 92 83 100
5 84 94 195 167 147 126 75 88 65 84 87 98
6 74 90 169 183 134 101 61 81 71 83 86 87
7 69 92 148 161 124 91 82 74 58 63 72 89
8 69 90 152 156 123 108 82 82 51 61 58 93
9 68 94 176 194 139 130 81 72 64 59 67 86
10 67 97 200 191 160 137 91 82 60 66 82 84
11 79 95 207 189 182 157 85 70 60 83 82 91
12 77 99 196 199 204 136 95 60 71 72 72 104
13 85 93 211 178 190 133 118 66 119 71 67 95
14 83 86 220 182 181 133 99 86 133 93 70 99
15 86 80 202 203 199 148 88 92 105 102 77 115
16 79 80 187 221 161 138 74 81 77 81 77 87
17 88 94 174 219 160 122 75 99 87 81 71 69
18 89 106 178 218 172 109 112 106 105 78 75 63
19 81 128 187 197 172 120 138 100 99 73 79 59
20 92 156 181 188 143 119 120 107 91 72 77 65
21 86 185 174 177 143 121 114 92 87 61 72 72
22 99 179 172 175 156 118 106 108 83 71 67 75
23 107 169 168 185 151 122 130 101 104 103 79 78
24 102 169 158 168 139 118 147 108 97 107 76 80
25 95 163 161 183 136 100 110 95 96 101 71 103
26 82 155 150 188 143 122 80 101 105 87 83 96
27 81 164 149 181 137 124 72 105 89 92 111 104
28 77 146 173 204 127 103 64 93 85 72 129 110
29 82 83 185 209 137 101 60 89 101 62 119 105
30 88   185 235 128 103 58 84 91 73 110 111
31 81   193   118   57 79   79   109