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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 05536085 NB CHICAGO RIVER AT N PULASKI ROAD AT CHICAGO, IL


Cook County, Illinois
Hydrologic Unit Code 07120003
Latitude  41°58'29", Longitude  87°43'42" NAD83
Drainage area 112.4  square miles
Gage datum 575.40 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 2017-10-01 -> 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
1 212 90 298 499 580 115 189 48 85 96 214 135
2 182 85 239 403 493 152 188 42 114 140 159 241
3 184 112 199 355 619 109 188 40 140 232 121 228
4 177 184 169 348 550 91 115 31 168 207 98 207
5 133 204 191 366 358 191 141 34 157 151 105 165
6 105 192 209 368 279 205 168 44 153 165 119 140
7 93 198 170 321 263 126 103 67 136 132 103 121
8 105 201 158 292 220 97 88 84 161 166 75 109
9 112 209 206 245 259 145 56 70 175 139 61 94
10 175 231 300 180 257 194 103 101 129 107 53 85
11 224 177 271 149 173 116 102 93 140 138 71 111
12 230 155 210 145 137 81 85 63 246 195 70 160
13 225 119 200 128 144 112 85 51 303 138 55 174
14 167 91 239 132 199 126 118 48 284 158 46 127
15 129 102 245 143 426 77 187 99 245 157 46 174
16 113 94 203 160 368 168 238 94 213 112 53 161
17 112 207 169 140 296 137 245 91 189 86 53 122
18 101 187 168 122 399 88 235 77 188 62 57 94
19 100 138 172 113 330 86 260 73 171 49 53 70
20 92 120 159 87 258 92 151 58 139 44 48 58
21 80 110 141 109 304 188 174 75 114 41 76 52
22 68 141 115 111 391 217 227 54 118 113 92 49
23 70 307 141 189 333 305 231 39 174 132 64 60
24 97 344 184 169 307 311 260 54 118 127 55 63
25 164 297 232 152 309 349 252 68 91 208 67 53
26 226 222 264 127 262 384 198 105 74 226 154 66
27 250 226 207 104 241 406 165 170 72 287 204 98
28 217 314 264 120 195 319 158 116 163 273 160 108
29 164 114 293 268 211 271 149 168 149 235 108 167
30 129   295 446 198 254 115 151 139 248 85 216
31 104   345   146   68 95   231   192