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USGS Daily Statistics for Maine

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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 01019000 Grand Lake Stream at Grand Lake Stream, Maine


Washington County, Maine
Hydrologic Unit Code 01050001
Latitude  45°10'21", Longitude  67°46'08" NAD83
Drainage area 224  square miles
Contributing drainage area 224  square miles
Gage datum 273.58 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 1928-10-01 -> 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
1 305 452 534 377 452 481 417 459 449 440 207 218
2 313 452 524 368 447 474 405 462 444 436 207 241
3 320 448 523 370 452 460 405 456 448 435 209 257
4 324 442 527 378 466 447 393 449 454 432 212 251
5 325 448 523 378 473 426 397 450 469 429 209 248
6 329 448 520 386 464 410 404 443 473 438 211 242
7 340 443 528 384 450 414 400 442 469 436 205 239
8 344 448 529 378 457 415 412 442 458 432 210 244
9 352 447 525 382 451 411 411 442 459 434 212 252
10 355 447 524 383 442 410 421 451 466 436 211 255
11 357 448 521 380 425 414 422 449 463 431 210 256
12 365 458 533 382 417 421 415 450 452 427 206 256
13 373 473 539 379 429 447 406 453 447 421 206 259
14 379 480 528 367 426 440 404 444 439 406 208 259
15 392 487 516 361 429 428 408 435 432 383 206 265
16 396 490 507 366 435 422 423 429 429 359 203 273
17 395 490 502 347 429 404 422 426 423 348 201 278
18 401 487 496 330 427 402 408 429 413 334 199 279
19 419 486 495 333 411 409 393 435 408 311 199 280
20 434 486 483 348 410 422 398 439 413 296 201 280
21 436 486 489 353 412 440 413 449 417 283 195 277
22 428 489 495 367 412 451 412 445 419 265 192 280
23 427 497 487 382 400 449 419 444 417 254 193 277
24 436 508 477 409 393 442 421 446 427 240 194 280
25 443 512 465 429 378 441 429 453 429 233 195 285
26 450 520 444 444 392 446 436 460 425 230 199 290
27 451 531 422 461 410 441 436 464 424 230 204 294
28 448 536 405 475 431 436 434 464 421 229 207 301
29 455 570 400 484 439 431 438 466 422 222 211 309
30 459   393 464 450 425 443 465 429 215 212 310
31 454   387   472   458 460   208   306