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USGS Daily Statistics for Oregon

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 14246900 COLUMBIA RIVER AT PORT WESTWARD, NEAR QUINCY, OR


Columbia County, Oregon
Hydrologic Unit Code 17080003
Latitude  46°10'53", Longitude 123°10'56" NAD27
Drainage area 256,900  square miles
Gage datum -1.00 feet above NGVD29
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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
1 261,000 275,000 243,000 273,000 311,000 356,000 274,000 174,000 136,000 123,000 159,000 223,000
2 257,000 271,000 241,000 267,000 312,000 357,000 262,000 170,000 127,000 120,000 160,000 227,000
3 256,000 269,000 240,000 268,000 312,000 354,000 253,000 163,000 122,000 124,000 163,000 234,000
4 263,000 260,000 237,000 265,000 312,000 354,000 243,000 159,000 121,000 126,000 159,000 239,000
5 264,000 255,000 236,000 265,000 315,000 357,000 231,000 161,000 121,000 124,000 165,000 241,000
6 268,000 251,000 241,000 266,000 318,000 357,000 230,000 164,000 120,000 121,000 169,000 239,000
7 273,000 253,000 241,000 266,000 324,000 359,000 228,000 163,000 119,000 119,000 173,000 236,000
8 274,000 260,000 241,000 274,000 326,000 353,000 229,000 161,000 115,000 121,000 178,000 238,000
9 270,000 261,000 243,000 273,000 329,000 349,000 228,000 161,000 114,000 128,000 180,000 241,000
10 273,000 259,000 242,000 276,000 328,000 349,000 225,000 160,000 114,000 130,000 182,000 239,000
11 272,000 258,000 242,000 287,000 329,000 344,000 219,000 160,000 116,000 130,000 179,000 243,000
12 269,000 255,000 247,000 293,000 328,000 341,000 218,000 159,000 117,000 133,000 183,000 250,000
13 277,000 252,000 249,000 290,000 332,000 337,000 216,000 161,000 118,000 132,000 184,000 250,000
14 282,000 247,000 250,000 290,000 333,000 329,000 214,000 159,000 118,000 132,000 186,000 255,000
15 280,000 243,000 252,000 291,000 339,000 322,000 215,000 160,000 119,000 137,000 187,000 255,000
16 275,000 248,000 254,000 289,000 344,000 316,000 209,000 160,000 116,000 135,000 190,000 251,000
17 275,000 250,000 260,000 289,000 346,000 309,000 206,000 157,000 119,000 130,000 189,000 254,000
18 275,000 253,000 259,000 290,000 354,000 304,000 203,000 157,000 118,000 133,000 196,000 254,000
19 285,000 255,000 258,000 290,000 365,000 305,000 199,000 156,000 118,000 133,000 198,000 248,000
20 282,000 260,000 258,000 286,000 368,000 301,000 197,000 155,000 117,000 130,000 204,000 248,000
21 279,000 258,000 259,000 292,000 371,000 295,000 196,000 154,000 117,000 135,000 204,000 252,000
22 282,000 252,000 255,000 294,000 370,000 291,000 195,000 148,000 117,000 139,000 211,000 254,000
23 281,000 254,000 260,000 299,000 367,000 288,000 188,000 151,000 118,000 141,000 217,000 251,000
24 281,000 251,000 264,000 306,000 365,000 285,000 183,000 148,000 121,000 139,000 217,000 249,000
25 279,000 249,000 261,000 310,000 364,000 285,000 185,000 149,000 120,000 141,000 218,000 238,000
26 274,000 245,000 262,000 313,000 361,000 283,000 181,000 148,000 122,000 142,000 214,000 230,000
27 273,000 240,000 265,000 313,000 355,000 282,000 183,000 148,000 121,000 141,000 216,000 229,000
28 271,000 240,000 267,000 314,000 355,000 282,000 180,000 146,000 122,000 136,000 214,000 243,000
29 271,000 257,000 267,000 312,000 357,000 280,000 182,000 145,000 121,000 147,000 218,000 256,000
30 274,000   273,000 310,000 359,000 280,000 182,000 144,000 121,000 145,000 221,000 263,000
31 272,000   274,000   359,000   177,000 142,000   150,000   262,000