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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 05579500 LAKE FORK NEAR CORNLAND, IL


Logan County, Illinois
Hydrologic Unit Code 07130009
Latitude  39°57'06", Longitude  89°23'08" NAD83
Drainage area 214  square miles
Gage datum 555.06 feet above NGVD29
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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 1947-10-01 -> 2019-09-30)

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
1 220 174 200 246 335 242 183 104 42 54 87 136
2 182 169 213 223 331 246 179 122 43 55 107 138
3 165 184 220 229 300 249 162 158 49 58 92 180
4 169 192 278 255 281 228 156 134 41 55 80 208
5 183 203 303 251 312 244 175 107 30 49 72 179
6 176 197 269 263 314 250 169 108 26 46 64 157
7 160 225 254 260 310 233 147 106 36 55 60 154
8 148 221 242 243 329 223 133 97 48 58 55 147
9 139 212 232 229 325 224 141 71 49 74 53 131
10 144 224 234 213 301 211 146 60 43 74 55 122
11 148 211 239 238 307 222 154 61 49 71 60 126
12 138 218 257 343 318 266 187 56 39 64 59 166
13 148 195 268 321 342 303 186 63 31 65 70 146
14 191 180 274 300 353 328 193 52 50 70 76 133
15 201 169 266 295 313 332 145 56 69 68 85 133
16 175 179 253 291 314 345 119 56 79 64 85 144
17 141 202 239 267 368 287 113 46 59 67 95 137
18 128 210 241 247 379 235 101 43 46 66 111 124
19 138 215 269 259 358 224 91 38 46 63 133 115
20 153 234 286 294 346 215 92 37 49 57 153 112
21 148 265 309 334 304 246 89 33 43 56 121 139
22 149 324 268 359 260 296 124 34 38 50 101 166
23 179 323 244 334 233 350 119 46 56 71 96 161
24 196 294 234 305 222 297 99 48 50 76 95 167
25 173 287 231 324 238 265 82 36 49 76 99 166
26 156 256 229 318 297 234 93 46 50 71 101 155
27 158 224 248 318 295 233 121 36 46 67 114 166
28 163 197 256 339 283 230 128 33 39 63 150 179
29 171 139 245 310 252 228 109 41 44 62 118 215
30 182   252 313 233 208 95 40 41 76 117 251
31 171   259   235   103 34   79   235