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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 05595200 RICHLAND CREEK NEAR HECKER, IL


St. Clair County, Illinois
Hydrologic Unit Code 07140204
Latitude  38°19'26", Longitude  89°58'14" NAD83
Drainage area 129  square miles
Gage datum 374.65 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 1969-10-01 -> 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
1 140 218 95 187 308 204 96 51 56 45 104 194
2 75 215 88 148 164 147 90 29 66 47 195 100
3 114 168 194 283 192 73 98 34 44 43 58 140
4 162 168 248 271 317 67 168 35 41 38 76 146
5 187 119 192 316 230 124 179 87 50 24 144 93
6 110 152 118 199 150 99 94 75 26 27 85 110
7 52 209 277 109 245 119 95 76 24 18 51 87
8 89 105 162 144 289 92 114 69 241 27 33 60
9 67 94 202 125 266 78 77 55 235 63 35 56
10 131 123 143 234 145 89 170 58 106 29 58 92
11 204 135 177 295 239 168 81 50 71 28 70 124
12 125 123 245 229 174 175 70 85 26 32 79 82
13 233 135 154 146 183 103 52 78 19 37 82 87
14 133 101 253 329 186 79 41 51 99 58 163 141
15 103 103 192 178 209 101 81 144 85 58 115 217
16 77 99 128 223 215 97 225 110 40 42 101 124
17 115 201 137 101 477 232 309 58 57 84 127 114
18 226 157 361 212 290 119 88 64 93 35 154 83
19 188 140 363 277 164 236 85 47 53 44 201 78
20 162 163 319 186 123 151 112 28 48 112 149 111
21 126 219 184 182 120 111 94 29 31 95 68 138
22 134 275 148 210 141 115 114 30 38 52 113 83
23 173 327 185 204 76 77 96 40 202 73 97 123
24 149 225 218 236 90 120 114 63 99 39 114 211
25 115 209 242 196 132 115 67 47 52 63 203 233
26 138 133 185 205 190 239 98 89 52 58 139 115
27 112 159 253 191 219 109 128 64 109 65 188 193
28 111 121 298 273 222 61 166 30 85 45 221 284
29 103 50 220 634 132 123 114 26 47 83 101 242
30 211   351 487 90 92 95 38 19 164 172 191
31 287   303   192   69 47   107   154