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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 12448998 TWISP RIVER NEAR TWISP, WA


Okanogan County, Washington
Hydrologic Unit Code 17020008
Latitude  48°22'12", Longitude 120°08'51" NAD27
Drainage area 245  square miles
Gage datum 1,640 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 1974-10-01 -> 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 73 81 90 217 564 1,100 598 146 53 51 85 128
2 73 82 90 229 597 1,120 569 138 52 54 83 124
3 74 82 89 240 641 1,140 566 131 51 55 82 115
4 73 81 89 247 672 1,140 551 131 51 57 85 111
5 72 82 89 249 726 1,130 524 126 49 58 96 119
6 74 82 91 249 735 1,090 513 119 55 57 103 117
7 74 82 93 262 738 1,040 506 121 53 57 133 112
8 76 84 94 280 757 1,000 495 115 51 60 118 107
9 75 85 95 304 775 950 477 107 50 61 113 109
10 74 84 97 315 801 931 449 102 49 61 116 108
11 74 85 98 319 816 905 423 97 48 62 114 108
12 72 84 106 320 864 909 403 92 46 61 117 105
13 72 84 111 323 904 909 384 89 45 61 126 103
14 72 84 115 325 946 891 359 87 44 62 127 100
15 71 84 122 320 1,010 873 330 83 45 62 141 96
16 73 85 125 321 1,070 851 314 80 45 63 132 96
17 79 86 127 326 1,130 829 300 77 44 67 120 92
18 75 87 131 339 1,150 816 284 75 44 69 116 90
19 75 88 137 364 1,140 786 268 74 44 69 114 87
20 79 90 143 395 1,090 784 254 71 44 73 108 86
21 79 91 146 431 1,050 803 247 72 44 99 102 85
22 78 92 151 451 1,010 799 233 69 43 81 101 85
23 81 91 157 454 998 784 224 66 43 78 111 83
24 86 90 162 475 1,010 749 217 65 44 77 135 80
25 85 89 169 484 1,020 713 209 64 44 75 130 81
26 83 90 172 487 1,020 679 197 63 45 76 122 79
27 81 89 176 494 1,000 660 189 60 45 76 113 77
28 81 90 181 503 1,010 651 178 57 45 75 114 78
29 80 105 185 518 1,040 668 171 57 47 78 141 76
30 79   192 546 1,060 645 165 56 48 77 142 74
31 79   204   1,080   154 55   82   73