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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 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 -> 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
1 166 171 158 337 1,020 1,910 1,190 415 179 142 230 266
2 160 169 158 356 1,040 1,890 1,160 396 172 138 216 244
3 163 164 159 368 1,090 1,880 1,120 380 171 144 205 233
4 159 163 158 377 1,130 1,850 1,070 373 188 151 232 220
5 159 164 158 388 1,180 1,840 1,010 368 175 151 241 214
6 164 164 159 394 1,230 1,820 998 358 167 138 258 209
7 172 171 160 409 1,290 1,790 986 350 162 137 308 199
8 190 180 161 436 1,360 1,750 971 335 160 142 288 196
9 182 191 166 474 1,420 1,680 968 318 156 149 261 212
10 174 187 174 501 1,440 1,630 956 305 152 153 250 213
11 168 178 178 517 1,460 1,600 929 296 151 161 232 220
12 165 173 196 526 1,530 1,590 903 284 147 154 263 206
13 164 172 204 546 1,570 1,600 872 272 143 149 295 207
14 164 169 210 577 1,600 1,570 855 263 143 152 294 200
15 169 172 226 583 1,640 1,530 824 260 146 156 274 193
16 168 174 232 595 1,720 1,510 782 249 151 163 265 193
17 172 174 231 618 1,790 1,510 745 238 153 186 256 185
18 174 177 233 645 1,820 1,480 712 232 153 188 260 186
19 189 178 241 680 1,820 1,430 693 226 151 194 260 180
20 184 176 250 736 1,800 1,400 675 221 147 206 252 176
21 178 174 250 780 1,780 1,410 661 216 145 247 227 174
22 172 175 254 812 1,780 1,420 637 211 140 208 226 170
23 171 175 259 841 1,810 1,400 616 208 137 197 255 166
24 174 169 265 878 1,870 1,350 596 202 140 192 255 163
25 176 165 280 881 1,920 1,300 570 198 138 224 257 164
26 176 163 281 890 1,920 1,270 547 195 139 218 255 163
27 173 161 283 914 1,890 1,240 523 189 144 203 261 160
28 169 160 285 941 1,880 1,240 499 184 137 205 270 159
29 167 179 285 972 1,900 1,260 481 181 140 209 320 164
30 166   295 1,000 1,890 1,230 459 181 141 205 339 172
31 167   318   1,900   438 175   240   170