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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 06918740 Little Sac River near Morrisville, MO


Polk County, Missouri
Hydrologic Unit Code 10290106
Latitude  37°28'58.3", Longitude  93°29'08.3" NAD83
Drainage area 237  square miles
Gage datum 880.32 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 1968-10-01 -> 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
1 278 247 289 400 681 279 282 53 71 298 337 255
2 191 214 278 532 461 272 294 50 63 111 203 229
3 197 186 405 395 458 261 197 50 57 80 202 276
4 257 169 458 327 566 215 137 46 39 79 259 297
5 365 205 362 360 686 220 150 69 40 127 223 238
6 219 214 333 306 377 213 119 63 34 94 194 184
7 177 206 331 266 486 249 115 55 31 65 240 185
8 211 178 342 267 560 220 102 65 52 81 136 154
9 177 167 322 267 455 554 106 66 61 239 142 151
10 231 159 496 518 359 518 120 72 49 146 131 230
11 313 190 470 568 354 289 103 49 43 89 140 221
12 211 199 460 471 354 333 139 58 51 92 180 183
13 299 227 496 318 393 273 97 49 34 89 269 178
14 241 234 585 384 444 291 78 46 177 89 245 215
15 266 284 526 362 449 199 75 45 167 82 213 291
16 225 275 359 307 421 202 75 47 118 72 190 231
17 216 300 373 254 437 213 80 55 97 97 244 196
18 273 230 555 283 376 160 76 36 71 67 265 165
19 233 268 704 257 303 219 60 37 68 63 275 222
20 214 229 494 344 398 315 77 261 78 162 247 263
21 230 313 399 482 546 194 63 60 60 105 214 221
22 215 377 348 440 538 217 59 50 88 88 232 170
23 201 560 329 381 467 214 61 112 95 78 168 162
24 202 614 554 379 331 170 66 52 264 72 336 174
25 224 405 518 542 314 130 52 50 390 79 418 219
26 196 324 396 529 322 124 60 38 231 80 255 221
27 192 302 385 426 335 113 53 30 175 134 244 592
28 194 285 433 420 310 216 48 37 85 112 211 448
29 225 186 520 605 241 207 54 30 73 99 207 263
30 295   523 800 237 135 55 32 174 173 239 240
31 372   504   233   64 44   116   252