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USGS Surface-Water Daily Statistics for Arkansas

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 07069190 Mammoth Spring at Mammoth Spring


Fulton County, Arkansas
Hydrologic Unit Code 11010010
Latitude  36°29'53", Longitude  91°32'08" NAD27
Land-surface elevation 506 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 1980-10-01 -> 2024-09-30)

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
1 341 368 390 431 445 418 367 325 293 281 281 322
2 341 369 390 429 447 417 366 325 291 279 282 322
3 344 370 392 428 449 415 364 323 292 278 281 328
4 346 370 393 429 450 414 362 322 293 277 283 327
5 348 370 394 431 450 412 361 321 293 276 287 326
6 349 370 395 429 448 410 359 321 292 276 289 325
7 350 371 394 428 447 409 356 320 290 276 291 323
8 348 372 395 428 446 407 356 318 289 275 290 321
9 348 374 400 426 446 406 355 317 288 277 289 320
10 348 373 403 426 445 405 353 318 287 279 287 320
11 350 374 403 425 447 404 352 318 290 281 285 320
12 350 373 403 427 446 403 351 317 288 280 284 319
13 354 375 405 432 445 401 350 315 286 279 283 319
14 354 377 407 434 446 398 349 314 284 279 283 320
15 355 379 408 433 445 396 347 314 284 279 285 322
16 353 380 408 432 444 394 344 313 285 278 287 323
17 351 381 409 430 442 394 343 311 285 279 289 326
18 350 383 412 429 441 394 342 310 285 278 296 329
19 351 383 416 428 439 392 341 308 284 276 300 331
20 351 384 417 430 437 390 339 307 283 276 304 332
21 350 385 416 430 436 388 337 308 282 275 303 336
22 352 388 417 430 434 386 336 307 282 274 306 337
23 355 389 418 432 433 385 335 304 283 276 308 335
24 358 390 418 435 431 383 334 303 284 275 308 335
25 359 388 420 440 430 381 331 301 286 274 311 337
26 361 389 421 441 429 379 330 299 285 272 311 337
27 362 391 422 442 428 377 328 298 286 272 314 337
28 361 391 424 442 427 374 326 298 284 274 319 340
29 362 373 425 442 424 371 325 296 282 278 320 339
30 364   429 445 423 369 327 295 281 282 321 339
31 368   431   420   327 294   280   340