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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 06172310 Milk River at Tampico MT


Valley County, Montana
Hydrologic Unit Code 10050012
Latitude  48°18'28.46", Longitude 106°49'20.34" NAD83
Drainage area 21,341  square miles
Contributing drainage area 19,142  square miles
Gage datum 2,110 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 1973-10-01 -> 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
1 130 259 347 1,490 861 940 851 242 301 217 248 171
2 129 221 360 1,440 809 1,020 793 192 262 218 259 172
3 129 179 392 1,330 738 1,120 810 175 241 223 261 175
4 125 167 413 1,240 709 1,150 771 173 215 222 315 177
5 122 156 424 1,220 662 1,140 761 170 207 282 259 178
6 121 154 445 1,200 611 1,070 731 166 224 376 221 174
7 119 151 476 1,160 644 1,060 685 166 237 394 218 168
8 118 149 490 1,100 689 1,100 643 175 227 405 216 160
9 116 147 525 1,020 704 1,130 610 186 209 422 226 161
10 116 145 549 1,010 697 1,260 565 192 216 436 204 162
11 119 145 622 1,140 725 1,260 531 195 227 425 224 159
12 115 147 716 1,240 761 1,200 514 173 227 360 224 155
13 119 152 756 1,370 811 1,170 447 171 237 312 216 149
14 130 150 818 1,530 830 1,110 449 187 234 307 215 145
15 153 151 855 1,630 823 1,030 388 207 225 300 213 143
16 192 153 950 1,630 836 957 346 222 228 299 194 140
17 215 157 1,050 1,610 788 916 354 218 239 293 191 141
18 208 161 1,170 1,560 733 940 333 223 254 291 191 142
19 196 162 1,310 1,510 695 944 311 211 227 285 205 143
20 202 162 1,330 1,450 673 946 292 179 224 271 184 144
21 194 167 1,380 1,370 705 945 287 173 228 276 188 142
22 231 176 1,490 1,300 796 899 273 206 229 279 207 137
23 317 188 1,530 1,240 846 841 296 206 231 273 183 134
24 382 204 1,510 1,200 898 900 291 248 237 272 181 132
25 405 216 1,540 1,150 980 907 281 312 216 261 180 135
26 376 210 1,700 1,080 1,020 871 246 345 210 247 183 134
27 365 207 1,750 1,020 946 811 220 349 214 240 164 137
28 335 197 1,680 982 930 823 248 353 200 244 170 138
29 307 284 1,600 963 960 802 270 348 187 245 173 138
30 275   1,590 929 929 866 287 345 198 242 169 136
31 257   1,490   908   288 331   242   132