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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 01109730 BLACKSTONE RIVER, W. MAIN ST., AT MILLBURY, MA


Worcester County, Massachusetts
Hydrologic Unit Code 01090003
Latitude  42°11'20", Longitude  71°45'56" NAD27
Drainage area 71.4  square miles
Gage datum 379.35 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 2001-10-01 -> 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
1 211 159 203 375 252 157 111 96 93 132 194 226
2 206 165 259 361 219 174 179 111 188 118 180 200
3 195 168 233 359 205 169 150 87 110 115 226 187
4 212 200 210 345 201 159 128 97 89 126 188 164
5 211 225 223 310 194 144 109 89 88 117 180 165
6 207 192 208 281 182 152 119 82 118 109 189 172
7 194 216 278 268 177 177 112 93 172 98 176 184
8 189 196 275 266 176 204 123 109 186 106 169 200
9 182 169 261 246 166 171 173 98 145 132 174 188
10 176 172 215 224 171 152 166 124 118 94 182 207
11 186 182 242 215 151 170 133 105 120 116 161 218
12 211 174 241 226 153 163 137 88 106 137 165 306
13 227 201 255 263 162 153 110 95 111 128 189 228
14 252 195 334 278 191 193 119 102 100 133 178 232
15 231 181 317 254 180 159 101 126 95 336 165 215
16 217 184 289 384 199 132 115 126 95 203 173 209
17 202 181 252 334 197 134 148 89 85 200 215 226
18 219 228 237 263 168 137 188 104 146 150 174 243
19 217 204 233 238 183 141 139 125 126 143 157 192
20 199 178 230 223 167 119 106 101 94 142 170 187
21 173 169 237 229 154 123 103 94 85 150 145 206
22 158 177 234 221 143 146 112 104 89 151 161 201
23 175 201 250 280 131 170 138 108 103 159 188 245
24 216 207 254 251 140 136 212 91 99 142 191 256
25 236 252 232 216 142 130 133 95 104 201 180 293
26 235 229 216 224 188 126 113 89 117 236 167 265
27 202 227 228 255 167 121 112 92 116 212 198 240
28 179 213 244 231 153 152 116 164 131 228 175 227
29 169 174 309 218 160 124 109 133 149 240 162 217
30 164   420 213 147 107 104 97 149 271 215 214
31 164   408   140   102 84   222   201