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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 12097500 GREENWATER RIVER AT GREENWATER, WA


King County, Washington
Hydrologic Unit Code 17110014
Latitude  47°09'13", Longitude 121°38'04" NAD27
Drainage area 73.5  square miles
Gage datum 1,724.81 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
1 239 269 212 249 340 431 222 81 53 52 114 224
2 230 243 206 247 349 429 213 79 52 52 116 251
3 230 231 200 237 361 427 207 77 50 54 126 231
4 217 236 199 233 370 424 198 75 50 54 137 213
5 251 232 202 235 377 423 191 74 50 52 138 205
6 242 262 203 245 380 419 185 72 50 50 143 206
7 291 308 193 253 386 417 179 71 49 50 161 203
8 292 303 183 253 392 409 173 69 49 53 153 205
9 248 270 190 252 402 402 167 67 48 56 137 267
10 231 237 192 254 411 398 160 66 48 60 138 269
11 232 221 189 260 419 396 155 65 49 64 148 284
12 235 210 198 265 428 385 149 64 47 62 180 280
13 245 205 201 274 438 379 146 63 46 60 195 262
14 244 208 198 287 445 371 141 62 47 59 176 244
15 262 235 198 285 473 365 137 61 48 61 163 239
16 297 228 199 282 474 359 132 60 48 62 169 232
17 281 220 198 287 476 351 128 59 49 62 194 225
18 276 210 201 297 476 338 124 59 51 65 182 234
19 260 215 208 297 474 328 119 58 49 69 165 227
20 254 213 209 316 470 319 115 57 50 72 174 246
21 252 220 206 324 462 315 111 57 49 74 181 259
22 251 254 207 319 457 306 108 56 48 97 192 259
23 279 219 205 316 451 294 104 56 48 91 211 260
24 281 207 217 321 449 283 101 56 49 89 229 247
25 269 203 229 321 453 271 98 55 49 97 246 235
26 251 206 224 320 459 258 95 55 51 92 251 230
27 237 200 224 323 463 248 92 55 54 88 234 227
28 245 209 213 329 462 241 90 54 53 97 258 239
29 266 251 213 333 459 236 88 53 51 97 257 257
30 270   226 339 454 229 85 53 53 100 221 268
31 282   246   443   83 52   111   241