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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 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 -> 2024-09-30)

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 81 81 88 243 1,090 2,030 753 198 84 92 130 111
2 81 81 89 258 1,160 1,940 707 187 81 102 126 109
3 80 80 89 274 1,260 1,900 675 180 79 103 122 106
4 79 81 90 288 1,340 1,920 661 181 78 104 119 104
5 79 81 91 296 1,510 1,950 615 173 77 105 120 105
6 82 82 92 303 1,590 1,880 584 168 81 103 123 103
7 83 83 93 331 1,620 1,780 564 162 85 103 137 102
8 85 84 94 367 1,650 1,720 545 155 82 104 136 100
9 84 85 95 409 1,710 1,630 522 148 79 104 128 99
10 84 83 97 429 1,720 1,560 500 144 77 104 125 99
11 82 86 101 442 1,740 1,520 480 142 74 106 120 102
12 79 87 108 451 1,830 1,520 457 136 73 105 123 102
13 79 88 115 450 1,840 1,510 438 130 71 104 133 100
14 79 88 121 447 1,950 1,480 410 131 72 105 131 96
15 78 87 130 435 2,090 1,420 384 130 74 105 132 94
16 80 88 133 441 2,230 1,380 364 126 76 108 135 93
17 82 90 134 459 2,430 1,320 346 120 76 111 130 91
18 83 91 135 497 2,400 1,270 339 122 79 116 128 91
19 83 89 139 551 2,310 1,210 333 114 83 114 128 91
20 85 88 143 614 2,220 1,120 324 109 82 116 123 90
21 83 89 148 706 2,130 1,090 320 107 79 148 118 89
22 81 88 153 775 2,110 1,080 303 108 77 131 113 89
23 82 86 160 787 2,070 1,040 291 105 76 127 113 88
24 85 86 166 848 2,020 1,020 286 101 75 123 114 87
25 82 87 172 873 2,030 990 267 100 75 121 112 86
26 81 88 176 902 2,060 919 259 98 76 121 110 85
27 81 88 183 928 2,090 897 246 95 77 120 109 85
28 81 88 194 953 2,060 850 230 90 77 119 108 86
29 81 92 200 994 2,050 825 225 87 83 120 107 86
30 81   211 1,040 2,030 790 215 88 84 118 112 82
31 82   230   2,040   203 87   125   81