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USGS Surface-Water 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 12456500 CHIWAWA RIVER NEAR PLAIN, WA


Chelan County, Washington
Hydrologic Unit Code 17020011
Latitude  47°50'15", Longitude 120°39'40" NAD27
Drainage area 170  square miles
Gage datum 2,100.00 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 1910-10-01 -> 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
1 166 170 160 337 1,030 1,900 1,190 408 175 142 231 279
2 160 168 161 355 1,060 1,890 1,160 390 169 137 216 259
3 162 163 161 366 1,120 1,900 1,120 373 167 142 205 245
4 159 162 161 376 1,160 1,870 1,070 366 183 148 233 230
5 159 163 160 386 1,220 1,860 1,010 360 171 148 248 222
6 163 164 161 391 1,260 1,830 989 350 164 136 260 216
7 171 170 161 405 1,310 1,790 976 343 159 135 306 206
8 188 178 162 432 1,360 1,740 960 328 156 139 286 202
9 180 189 167 467 1,410 1,670 955 312 153 146 259 216
10 172 185 174 493 1,430 1,640 941 299 149 149 248 216
11 167 177 178 508 1,450 1,610 916 290 148 158 230 223
12 165 172 194 515 1,510 1,590 892 279 144 151 267 208
13 167 171 202 533 1,560 1,590 862 268 140 145 303 209
14 167 169 208 562 1,600 1,560 843 258 140 148 307 201
15 171 171 224 568 1,660 1,520 809 255 143 152 309 194
16 170 173 230 581 1,750 1,500 769 244 148 159 289 194
17 173 173 229 604 1,830 1,490 732 234 149 182 269 186
18 175 176 230 633 1,860 1,460 699 228 151 183 269 186
19 188 177 238 670 1,850 1,420 680 222 148 190 266 180
20 184 176 246 724 1,810 1,390 662 217 144 202 257 177
21 179 173 247 766 1,790 1,410 648 213 142 241 231 175
22 173 176 250 798 1,780 1,420 624 208 137 204 229 172
23 171 175 256 828 1,790 1,400 605 204 134 194 256 168
24 174 169 263 865 1,840 1,350 584 198 137 188 255 165
25 175 164 277 868 1,890 1,310 559 195 135 220 256 165
26 176 162 279 877 1,890 1,280 537 191 138 215 257 165
27 172 160 281 901 1,870 1,260 514 186 143 201 263 162
28 168 159 286 929 1,870 1,260 491 180 136 205 278 162
29 167 179 287 964 1,880 1,280 473 177 139 223 328 165
30 165   297 1,000 1,860 1,240 451 178 140 209 344 173
31 166   319   1,870   430 172   241   170