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USGS Daily Statistics for the Nation

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 07017200 Big River at Irondale, MO


Washington County, Missouri
Hydrologic Unit Code 07140104
Latitude  37°49'48.0", Longitude  90°41'27.2" NAD83
Drainage area 175  square miles
Gage datum 753.32 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 1964-10-01 -> 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
1 251 277 212 314 524 222 37 38 38 61 276 307
2 183 240 242 238 371 122 40 35 33 35 185 206
3 164 195 335 313 457 111 41 32 27 26 99 402
4 287 170 294 439 454 127 37 39 41 22 293 202
5 234 160 279 421 331 197 39 46 48 21 212 195
6 176 181 219 255 326 188 34 28 37 21 104 163
7 133 289 409 209 311 122 58 38 37 22 74 132
8 146 163 262 221 751 96 54 43 75 21 61 133
9 123 213 317 250 338 135 46 206 43 102 64 115
10 237 241 355 439 220 125 99 183 41 39 77 253
11 298 220 376 583 254 134 53 60 41 36 98 312
12 156 176 466 394 313 114 48 116 33 37 94 159
13 346 236 323 282 347 106 46 46 27 66 180 135
14 199 176 380 459 382 96 33 88 82 86 437 192
15 187 197 295 365 282 91 33 203 44 52 181 317
16 144 255 299 317 289 102 41 57 49 48 173 207
17 149 399 373 217 502 206 35 42 59 61 154 219
18 237 211 661 386 386 120 35 48 62 45 201 185
19 229 247 593 395 226 187 31 37 50 51 464 182
20 209 224 421 376 175 149 72 46 40 73 209 181
21 199 250 302 382 203 91 45 34 69 65 138 285
22 187 415 245 502 185 82 76 29 57 42 157 176
23 193 440 245 436 142 79 55 38 189 78 197 208
24 184 409 404 408 169 68 76 39 95 44 164 334
25 174 322 350 456 207 164 41 33 143 50 316 267
26 191 324 306 421 322 71 88 38 62 42 190 224
27 175 284 287 418 276 74 59 131 50 64 394 345
28 178 245 433 434 193 54 54 51 49 74 347 539
29 307 122 495 737 147 43 37 60 41 124 173 292
30 357   524 718 206 37 38 34 26 333 305 302
31 321   400   320   42 32   112   236