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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 05540130 WEST BRANCH DU PAGE RIVER NEAR NAPERVILLE, IL


Will County, Illinois
Hydrologic Unit Code 07120004
Latitude  41°43'12.93", Longitude  88°07'54.96" NAD83
Drainage area 123  square miles
Gage datum 629.73 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 1988-10-01 -> 2025-09-30)

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
1 155 141 231 261 406 232 150 93 106 78 135 160
2 128 137 222 233 378 235 131 81 92 88 131 158
3 133 156 205 216 329 205 132 114 96 145 116 143
4 162 156 202 204 284 175 127 154 93 163 112 121
5 165 146 223 209 248 206 108 145 89 137 145 120
6 135 134 209 218 219 187 109 124 86 120 142 113
7 125 146 187 203 230 159 109 111 108 99 133 117
8 136 154 224 203 235 174 106 109 99 96 108 112
9 127 170 287 258 299 208 121 97 111 93 117 111
10 123 176 331 252 345 215 113 85 104 83 149 128
11 155 163 309 242 349 204 101 108 112 98 165 125
12 154 155 271 235 375 208 106 105 114 101 143 134
13 162 130 242 208 338 187 112 105 151 117 117 132
14 178 129 235 196 291 197 110 111 203 196 102 146
15 164 134 218 249 314 186 126 96 200 225 105 177
16 137 135 200 290 291 204 131 113 163 175 105 156
17 144 174 194 262 261 195 125 130 117 132 98 127
18 139 215 206 301 253 183 247 113 92 150 118 112
19 125 205 201 303 229 190 214 104 119 127 115 104
20 121 263 191 324 181 177 172 124 123 102 101 103
21 122 343 177 312 202 170 148 137 119 86 103 112
22 155 316 173 248 239 182 144 140 110 95 99 129
23 183 269 199 253 232 186 161 165 121 123 96 146
24 189 230 199 237 205 189 211 176 127 144 97 137
25 176 218 203 217 231 210 208 158 100 162 104 129
26 158 195 194 229 262 209 165 148 95 149 116 133
27 146 234 182 275 249 171 121 126 104 157 168 168
28 147 235 197 299 235 147 103 123 111 134 205 182
29 141 131 218 299 234 129 127 111 113 111 168 196
30 156   220 349 234 141 138 97 95 125 164 165
31 154   229   248   108 94   148   166