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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
1 220 174 200 253 358 245 185 103 42 54 87 136
2 182 169 213 228 358 248 180 121 43 55 107 138
3 165 184 220 233 328 251 163 156 49 58 92 180
4 169 192 278 257 301 230 157 132 41 55 80 208
5 183 203 303 253 322 245 176 107 30 49 72 179
6 176 197 269 264 320 250 169 108 26 46 64 157
7 160 225 254 261 314 233 147 106 36 55 60 154
8 148 221 242 245 332 223 133 97 48 58 55 147
9 139 212 232 231 329 224 141 71 49 74 53 131
10 144 224 234 215 304 210 146 60 43 74 55 122
11 148 211 239 239 310 221 154 61 49 71 60 126
12 138 218 257 342 320 265 186 56 39 64 59 166
13 148 195 268 320 343 301 185 63 31 65 70 146
14 191 180 274 303 354 325 192 52 50 70 76 133
15 201 169 266 301 314 330 144 56 69 68 85 133
16 175 179 253 294 314 343 118 56 79 64 85 144
17 141 202 239 270 368 286 113 46 59 67 95 137
18 128 210 241 252 378 235 101 43 46 66 111 124
19 138 215 269 264 357 226 91 38 46 63 133 115
20 153 234 286 297 345 221 91 37 49 57 153 112
21 148 265 309 335 303 250 89 33 43 56 121 139
22 149 324 268 359 261 311 123 34 38 50 101 166
23 179 323 244 334 238 363 118 46 56 71 96 161
24 196 294 234 304 227 304 99 48 50 76 95 167
25 173 287 231 323 241 270 81 36 49 76 99 166
26 156 256 229 316 303 238 92 46 50 71 101 155
27 158 224 247 317 300 236 119 36 46 67 114 166
28 163 197 256 338 286 232 127 33 39 63 150 179
29 171 139 249 309 256 230 108 41 44 62 118 215
30 182   261 312 238 210 94 40 41 76 117 251
31 171   269   238   102 34   79   235