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USGS Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 06043120 Gallatin River above Deer Creek, near Big Sky, MT


Gallatin County, Montana
Hydrologic Unit Code 10020008
Latitude  45°17'50.20", Longitude 111°12'41.01" NAD83
Drainage area 537.6  square miles
Gage datum 5,875 feet above NAVD88
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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 2018-10-01 -> 2023-09-30)

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
1 220 203 209 234 801 2,330 1,140 474 334 301 276 235
2 218 211 206 237 753 2,410 1,080 469 326 309 280 230
3 218 210 212 236 700 2,570 1,050 461 321 303 286 220
4 222 201 214 255 651 2,730 1,060 451 318 302 280 218
5 220 208 212 258 652 2,880 995 444 314 299 290 229
6 223 210 212 248 738 2,980 937 457 311 295 281 213
7 227 209 210 243 876 2,780 907 446 319 299 279 229
8 230 213 224 266 865 2,350 877 427 318 305 283 233
9 218 211 217 271 762 2,080 826 423 326 304 263 222
10 209 206 208 278 735 2,060 787 416 324 289 271 218
11 209 206 208 286 733 2,120 764 407 326 300 245 210
12 215 203 212 266 784 2,300 750 399 316 297 259 226
13 223 206 206 241 877 2,860 738 404 308 300 265 225
14 223 208 221 248 959 2,520 723 405 307 305 260 229
15 218 211 218 256 1,070 2,140 695 396 303 294 266 222
16 216 209 225 240 1,210 2,080 682 389 306 292 268 214
17 212 212 215 238 1,440 2,130 660 383 313 300 255 210
18 215 210 225 253 1,520 2,120 622 383 305 301 248 196
19 213 209 229 269 1,670 1,990 596 385 308 302 263 198
20 209 210 233 262 1,640 1,800 575 408 319 302 249 228
21 211 210 219 284 1,420 1,630 563 393 323 297 228 235
22 214 203 228 316 1,240 1,530 546 384 328 317 234 226
23 214 194 222 328 1,190 1,490 548 377 329 298 239 217
24 205 198 227 318 1,090 1,470 537 365 313 295 246 220
25 208 198 233 326 1,060 1,390 521 360 305 294 234 215
26 212 202 234 356 1,240 1,300 498 360 313 315 234 219
27 210 206 233 375 1,510 1,290 486 358 311 290 232 218
28 207 206 254 389 1,800 1,320 484 357 306 269 234 213
29 211 234 251 446 1,980 1,300 491 344 306 274 222 207
30 206   230 599 2,150 1,190 485 338 301 278 223 199
31 200   237   2,340   470 336   283   211