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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 06023000 Ruby River near Twin Bridges MT


Madison County, Montana
Hydrologic Unit Code 10020003
Latitude  45°30'24.89", Longitude 112°19'51.20" NAD83
Drainage area 970  square miles
Gage datum 4,670 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 1939-10-01 -> 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
1 159 140 140 176 174 263 360 117 178 212 226 205
2 156 141 139 174 172 274 350 116 177 210 224 205
3 153 151 138 182 172 294 349 113 177 204 224 207
4 152 156 139 183 175 318 350 110 178 203 223 202
5 153 149 140 185 171 330 343 111 177 202 221 195
6 152 148 140 189 165 346 327 107 180 202 224 194
7 153 148 144 191 169 368 311 106 183 202 224 191
8 153 146 146 193 185 390 299 104 184 200 228 189
9 152 142 148 192 197 401 284 103 187 200 222 189
10 150 141 149 193 202 403 271 105 189 202 223 187
11 150 141 150 186 207 395 261 110 190 204 220 185
12 151 141 152 188 207 386 257 112 192 204 220 184
13 148 142 151 190 209 387 251 114 189 207 219 181
14 145 142 152 191 203 391 249 117 190 207 220 181
15 143 142 153 188 196 390 242 119 190 211 219 183
16 140 142 154 183 188 413 232 120 190 211 216 182
17 138 144 159 188 182 457 215 122 191 211 219 183
18 138 142 164 189 180 469 205 121 191 211 222 182
19 137 143 164 189 178 462 198 121 192 213 222 182
20 137 143 164 189 182 442 187 126 194 214 219 184
21 138 142 164 188 196 442 173 130 198 213 220 184
22 139 141 168 189 207 431 159 136 197 215 218 181
23 139 141 170 191 215 401 154 146 197 217 218 179
24 138 138 175 193 218 383 147 149 199 219 217 174
25 138 139 180 192 225 386 140 153 198 220 215 173
26 137 137 183 194 232 391 133 154 199 221 212 172
27 135 137 181 191 228 390 131 158 199 222 209 169
28 137 138 182 185 225 376 131 164 202 223 207 168
29 139 148 182 185 227 359 125 169 208 222 206 166
30 141   183 181 237 344 123 171 207 221 204 166
31 139   183   248   119 174   219   163