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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 -> 2021-09-30)

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
1 216 174 202 254 386 245 185 102 41 53 93 139
2 179 170 217 229 373 248 180 120 42 54 110 139
3 162 185 223 233 335 251 162 155 48 57 94 179
4 166 192 278 257 305 230 156 131 40 54 82 206
5 179 202 301 253 325 244 175 105 29 48 73 177
6 173 196 267 264 323 249 168 106 26 45 65 155
7 157 223 252 261 316 233 146 104 35 54 61 152
8 146 219 239 244 333 222 133 95 47 57 56 145
9 137 210 230 230 329 223 140 70 48 73 53 130
10 141 229 232 214 305 210 145 59 42 72 56 121
11 163 215 237 238 310 220 152 60 48 69 60 124
12 158 220 254 340 319 263 185 55 38 62 59 163
13 159 196 264 318 341 299 183 62 30 63 69 144
14 199 180 270 301 352 323 190 51 49 69 75 131
15 206 169 263 299 313 327 143 55 67 66 84 131
16 178 178 251 292 314 340 118 55 77 62 84 141
17 144 202 239 268 386 284 112 45 58 66 94 134
18 138 217 242 251 403 233 100 43 45 64 109 122
19 148 220 278 263 379 224 91 38 45 61 130 113
20 158 236 303 295 355 219 91 36 48 56 150 111
21 150 264 317 332 309 249 88 33 42 55 119 136
22 151 317 274 356 265 310 124 33 37 49 99 163
23 180 320 248 331 242 362 118 45 55 70 95 158
24 196 292 238 302 230 303 98 47 49 74 94 164
25 175 287 234 336 243 269 81 36 48 74 97 162
26 157 259 231 341 304 237 91 45 49 70 100 151
27 158 226 249 341 301 237 118 35 45 73 112 162
28 162 199 261 353 287 234 126 32 39 66 147 175
29 171 154 254 330 258 230 107 40 44 63 116 211
30 181   264 339 240 210 93 39 41 80 117 247
31 170   271   239   101 34   87   231