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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 12409000 COLVILLE RIVER AT KETTLE FALLS, WA


Stevens County, Washington
Hydrologic Unit Code 17020003
Latitude  48°35'40", Longitude 118°03'41" NAD27
Drainage area 1,007  square miles
Gage datum 1,400 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 1922-10-01 -> 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
1 181 239 362 706 874 488 244 102 87 105 136 168
2 180 239 371 716 854 476 237 100 89 105 135 173
3 182 242 375 730 838 465 229 98 86 105 136 177
4 186 244 378 740 827 452 223 98 88 106 139 177
5 191 249 382 751 820 444 218 97 89 108 141 177
6 192 253 388 764 808 434 209 94 88 110 142 176
7 192 259 393 773 799 429 203 93 89 110 143 174
8 197 264 395 783 789 418 196 92 90 110 144 171
9 202 270 402 792 773 411 190 89 90 111 144 165
10 201 269 420 801 759 403 185 88 90 112 143 163
11 199 268 435 807 746 393 180 87 92 113 145 167
12 196 271 447 818 735 383 174 86 94 113 146 170
13 202 275 462 832 720 374 168 86 94 115 149 172
14 209 278 475 848 707 369 164 85 94 115 151 180
15 211 278 487 867 694 362 158 83 96 115 154 183
16 219 282 502 874 682 354 153 85 96 116 156 183
17 227 291 516 887 670 347 148 85 97 116 160 181
18 232 296 526 904 658 338 144 83 99 117 161 184
19 230 298 539 914 644 330 138 84 101 119 161 183
20 232 302 556 915 630 320 134 83 101 120 163 183
21 230 308 572 919 621 311 131 83 100 122 166 187
22 224 313 587 919 610 306 127 85 101 123 168 192
23 223 317 601 918 600 299 123 84 101 127 165 193
24 223 320 618 921 583 291 120 86 101 127 167 190
25 225 324 631 926 566 286 118 88 101 127 169 189
26 226 337 639 922 551 281 115 88 102 128 171 189
27 225 342 644 919 543 275 113 89 101 129 168 189
28 224 349 653 911 540 269 111 88 102 131 166 189
29 227 323 665 910 528 260 108 87 105 132 164 189
30 228   682 901 513 252 106 86 105 133 163 186
31 232   696   502   104 87   135   184