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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 05438170 KISHWAUKEE RIVER AT MARENGO, IL


Mchenry County, Illinois
Hydrologic Unit Code 07090006
Latitude  42°15'55.26", Longitude  88°36'30.56" NAD83
Drainage area 170  square miles
Gage datum 786.12 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 2010-10-01 -> 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
1 155 137 232 312 348 222 321 112 76 98 122 138
2 146 135 220 294 350 187 269 104 125 110 116 167
3 135 149 192 310 325 163 232 100 232 158 124 185
4 128 160 179 302 308 148 197 95 252 142 124 177
5 117 171 196 295 273 158 182 94 184 117 121 160
6 112 158 211 309 247 174 226 90 147 132 120 141
7 110 150 206 308 239 160 263 89 124 151 123 128
8 123 160 198 279 224 143 228 91 114 128 112 116
9 126 151 206 266 229 153 191 96 109 117 117 112
10 121 154 284 267 247 177 170 102 95 105 128 111
11 129 148 367 283 244 179 148 99 95 113 127 113
12 135 137 328 271 238 182 140 93 129 117 114 113
13 122 125 350 244 233 162 178 83 158 107 104 114
14 116 118 350 241 241 149 193 78 190 114 97 127
15 107 116 319 254 258 179 207 75 163 135 93 171
16 106 112 302 286 265 205 225 72 121 136 92 166
17 133 112 284 297 250 194 236 70 99 126 91 145
18 155 127 269 361 317 186 237 68 95 114 110 127
19 132 162 250 346 270 216 205 65 97 97 124 113
20 119 229 251 306 235 233 186 66 92 89 113 109
21 121 268 266 295 230 200 220 75 90 83 107 112
22 125 231 253 265 236 203 220 68 99 85 111 115
23 139 224 233 267 229 251 246 65 108 90 106 117
24 133 264 235 260 261 259 306 67 97 98 103 129
25 119 234 244 234 263 226 269 65 84 109 104 127
26 124 205 255 219 263 246 202 65 83 110 117 126
27 133 187 262 214 266 352 171 65 93 130 140 138
28 135 205 254 215 253 316 162 62 100 146 167 139
29 137 178 278 237 229 344 165 86 101 122 155 142
30 139   263 313 239 388 157 104 110 112 143 155
31 138   297   257   131 92   118   157