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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 06085800 Sun River at Simms MT


Cascade County, Montana
Hydrologic Unit Code 10030104
Latitude  47°30'05.86", Longitude 111°55'54.89" NAD83
Drainage area 1,296  square miles
Gage datum 3,570 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 1965-10-01 -> 2022-09-30)

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
1 178 199 205 251 549 2,500 846 129 163 161 217 210
2 185 201 205 252 569 2,430 821 134 156 175 221 210
3 186 201 199 248 609 2,320 740 133 150 184 221 215
4 190 201 198 247 634 2,260 721 130 145 189 219 206
5 190 203 202 250 663 2,270 655 132 140 192 221 199
6 188 204 205 260 704 2,500 611 134 139 192 222 202
7 192 204 207 270 742 2,680 531 138 142 190 222 209
8 196 203 217 266 801 2,520 471 150 142 188 227 206
9 195 202 218 275 857 2,360 437 147 141 193 232 201
10 190 203 222 277 903 2,210 393 147 139 195 232 206
11 188 205 218 277 1,030 2,020 345 146 140 194 225 210
12 192 209 224 280 1,110 1,860 298 146 145 197 227 210
13 188 212 223 289 1,060 1,810 267 146 145 204 231 203
14 190 211 227 297 1,100 1,910 242 147 143 211 230 199
15 195 210 231 296 1,160 1,830 219 152 142 218 229 203
16 205 210 242 313 1,130 1,790 205 156 143 219 231 203
17 206 209 247 325 1,190 1,790 186 156 141 217 226 200
18 212 207 252 321 1,290 1,760 183 157 142 218 227 191
19 213 202 237 323 1,360 2,540 179 155 144 225 231 188
20 212 203 246 318 1,340 2,660 186 161 142 225 228 185
21 210 199 268 319 1,290 2,150 179 160 140 225 226 182
22 212 198 268 310 1,290 1,830 163 162 140 225 229 178
23 212 196 264 303 1,310 1,680 150 166 139 223 231 176
24 212 200 258 311 1,400 1,520 141 176 134 221 229 179
25 214 200 254 347 1,570 1,450 136 176 131 220 226 183
26 212 199 255 374 1,820 1,350 130 172 136 222 223 184
27 207 203 255 385 2,100 1,160 130 164 143 223 217 188
28 204 203 251 440 2,200 966 128 157 146 216 212 185
29 203 194 249 493 2,200 817 123 154 144 209 211 189
30 203   248 521 2,260 844 123 154 150 211 209 184
31 201   253   2,470   126 161   211   180