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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 12389500 Thompson River near Thompson Falls MT


Sanders County, Montana
Hydrologic Unit Code 17010213
Latitude  47°35'30.69", Longitude 115°13'46.33" NAD83
Drainage area 638  square miles
Gage datum 2,429.97 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 1956-10-01 -> 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
1 171 216 260 512 1,000 1,290 557 263 194 173 176 211
2 173 212 260 524 1,020 1,270 537 261 194 172 177 212
3 174 208 264 534 1,050 1,270 521 256 191 172 178 215
4 172 207 267 546 1,070 1,260 504 252 189 172 181 218
5 172 212 265 559 1,110 1,220 487 250 188 170 181 217
6 173 211 272 593 1,150 1,190 472 245 187 170 181 207
7 178 212 275 634 1,180 1,160 458 243 186 169 187 198
8 185 221 278 650 1,190 1,150 443 239 185 170 187 192
9 185 268 280 670 1,190 1,150 429 236 184 170 184 191
10 188 269 291 688 1,210 1,070 418 233 183 170 184 191
11 184 250 296 694 1,230 1,020 407 230 182 171 185 192
12 180 239 303 700 1,250 990 395 228 182 175 191 194
13 183 231 316 706 1,260 983 387 226 181 175 196 195
14 186 229 321 730 1,270 976 380 223 180 173 192 200
15 199 226 338 745 1,290 948 368 222 181 173 187 199
16 243 231 369 737 1,340 931 361 221 181 172 187 193
17 243 234 377 735 1,380 914 352 218 179 171 186 190
18 227 231 381 745 1,390 888 344 215 180 170 186 188
19 215 233 407 752 1,380 851 336 213 181 170 184 185
20 210 248 402 789 1,370 825 329 212 181 169 183 182
21 204 267 399 841 1,360 795 321 211 179 169 186 181
22 200 265 396 865 1,370 771 314 210 179 171 187 182
23 197 257 403 887 1,370 745 307 208 178 172 190 183
24 193 249 410 950 1,370 718 301 206 176 171 202 182
25 196 248 413 978 1,370 693 297 204 175 172 216 180
26 192 250 424 959 1,380 664 291 203 174 174 214 183
27 190 251 435 951 1,380 637 285 202 173 174 203 187
28 189 255 443 965 1,360 614 279 200 173 175 195 183
29 188 294 453 970 1,340 596 274 197 172 175 198 176
30 195   466 983 1,330 578 270 196 172 174 210 175
31 214   493   1,320   266 195   175   173