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USGS Daily Statistics for Washington

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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 12143400 SF SNOQUALMIE RIVER AB ALICE CREEK NEAR GARCIA, WA


King County, Washington
Hydrologic Unit Code 17110010
Latitude  47°24'55", Longitude 121°35'10" NAD27
Drainage area 41.6  square miles
Gage datum 1,441.58 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 1960-10-01 -> 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
1 294 365 285 311 477 559 266 84 69 119 348 427
2 297 298 249 311 491 571 258 81 77 114 338 465
3 342 300 255 306 497 553 259 79 67 122 336 454
4 330 299 255 307 496 546 244 78 61 115 466 399
5 395 296 261 345 511 550 236 78 56 95 379 353
6 337 309 267 374 525 524 232 73 61 100 396 330
7 494 342 248 367 519 508 221 74 60 102 404 304
8 402 335 233 361 519 473 216 72 68 125 360 330
9 308 274 280 371 522 464 214 66 65 137 331 357
10 306 251 267 367 517 475 203 63 73 149 321 359
11 291 231 282 369 524 455 198 61 83 150 343 360
12 319 265 307 365 547 460 197 59 72 150 443 351
13 356 272 292 373 555 462 201 60 59 166 443 365
14 393 329 290 393 564 465 186 57 67 171 457 363
15 437 344 303 381 590 449 185 57 73 178 358 378
16 416 367 292 363 605 446 166 56 73 210 356 345
17 403 317 270 373 602 418 165 55 90 167 385 333
18 433 307 276 368 581 426 154 59 93 168 368 333
19 380 385 307 378 574 409 144 55 82 192 394 297
20 358 348 279 417 575 390 140 59 90 223 390 348
21 324 332 266 397 567 377 132 56 99 248 364 351
22 267 326 273 394 574 366 123 54 88 286 366 305
23 324 299 289 417 567 357 119 58 95 240 421 313
24 399 300 317 435 548 353 114 68 101 229 516 336
25 363 264 303 411 550 342 110 73 95 226 507 337
26 322 243 299 412 550 317 107 68 81 256 447 363
27 312 255 291 447 545 297 102 62 80 263 380 311
28 333 286 282 477 563 293 99 63 87 273 421 315
29 355 375 287 477 579 298 96 59 97 269 404 338
30 386   309 496 565 278 92 61 152 280 371 325
31 403   333   536   87 59   359   279