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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 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 90 298 524 654 98 191 45 85 96 214 135
2 182 85 239 364 560 103 197 37 114 140 159 241
3 184 112 199 256 674 79 203 35 140 232 121 228
4 177 184 169 245 606 72 113 27 168 207 98 207
5 133 204 191 308 382 152 150 25 157 151 105 165
6 105 192 209 354 301 175 186 28 153 165 119 140
7 93 198 170 316 271 105 103 59 136 132 103 121
8 105 201 158 261 201 86 70 85 161 166 75 109
9 112 209 206 229 259 152 48 73 175 139 61 94
10 175 231 300 168 266 215 78 111 129 107 53 85
11 224 177 271 144 177 126 84 103 140 138 71 111
12 230 155 210 146 140 87 76 69 246 195 70 160
13 225 119 200 130 153 125 84 55 303 138 55 174
14 167 91 239 139 217 142 69 53 284 158 46 127
15 129 102 245 155 478 85 81 111 245 157 46 174
16 113 94 203 177 410 192 108 94 213 112 53 161
17 112 207 169 145 330 156 103 91 189 86 53 122
18 101 187 168 128 455 99 127 77 188 62 57 94
19 100 138 172 118 376 97 212 73 171 49 53 70
20 92 120 159 90 294 103 99 58 139 44 48 58
21 80 110 141 117 344 216 136 75 114 41 76 52
22 68 141 115 121 442 248 218 54 118 113 92 49
23 70 307 141 213 374 258 246 39 174 132 64 60
24 97 344 184 190 348 235 255 54 118 127 55 63
25 164 297 232 171 351 282 246 68 91 208 67 53
26 226 222 264 141 290 323 199 105 74 226 154 66
27 250 226 207 106 219 383 171 170 72 287 204 98
28 217 314 284 118 175 306 169 116 163 273 160 108
29 164 114 328 261 185 265 161 168 149 235 108 167
30 129   304 481 173 259 118 151 139 248 85 216
31 104   358   130   65 95   231   192