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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 12448000 CHEWUCH RIVER AT WINTHROP, WA


Okanogan County, Washington
Hydrologic Unit Code 17020008
Latitude  48°28'38", Longitude 120°11'07" NAD27
Drainage area 525  square miles
Gage datum 1,736.26 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 1991-10-01 -> 2021-09-30)

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 80 80 88 242 1,070 2,090 778 207 86 94 132 109
2 80 80 89 259 1,120 1,970 731 195 83 103 128 106
3 79 80 89 275 1,190 1,900 697 187 81 105 124 102
4 78 80 90 290 1,270 1,920 673 189 80 106 121 101
5 78 80 91 299 1,390 1,950 624 181 79 107 120 102
6 81 81 92 307 1,470 1,880 595 175 84 106 123 101
7 82 84 93 336 1,550 1,800 576 168 88 105 138 99
8 84 85 94 374 1,610 1,740 557 161 85 107 138 97
9 83 85 95 418 1,690 1,650 534 154 82 107 130 97
10 83 83 98 439 1,710 1,570 512 149 79 107 127 97
11 81 86 101 452 1,730 1,540 493 147 77 109 122 99
12 78 87 109 462 1,820 1,550 469 141 75 108 125 99
13 77 87 117 461 1,820 1,540 451 136 72 106 135 97
14 78 87 122 459 1,920 1,510 422 137 72 107 132 94
15 76 87 132 447 2,070 1,460 395 135 75 108 130 93
16 78 87 135 454 2,200 1,420 375 132 77 111 129 91
17 81 89 135 472 2,400 1,350 357 125 77 114 126 90
18 82 90 137 513 2,390 1,300 350 127 81 119 125 90
19 82 88 141 571 2,310 1,230 344 119 85 117 126 90
20 84 87 145 638 2,240 1,140 335 114 84 119 121 90
21 83 88 150 736 2,160 1,120 332 110 81 152 115 88
22 80 88 155 810 2,150 1,100 315 112 80 134 111 88
23 81 88 162 822 2,110 1,060 303 108 78 128 111 87
24 84 86 167 885 2,060 1,040 298 104 78 125 112 86
25 82 87 173 909 2,070 1,020 277 103 77 122 110 85
26 80 87 178 935 2,110 940 269 101 78 122 109 84
27 80 88 184 959 2,130 920 256 98 78 122 108 84
28 81 87 193 981 2,100 869 238 93 78 120 107 85
29 81 92 198 1,010 2,110 846 234 90 85 120 106 85
30 81   208 1,040 2,090 814 224 90 86 119 111 81
31 81   228   2,110   212 89   126   80