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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 01097000 ASSABET RIVER AT MAYNARD, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01070005
Latitude  42°25'55", Longitude  71°27'01" NAD27
Drainage area 116  square miles
Contributing drainage area 116  square miles
Gage datum 141.33 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 1940-10-01 -> 2020-09-30)

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
1 208 235 288 498 304 191 106 67 63 88 127 194
2 215 227 287 517 294 199 104 67 59 82 126 195
3 216 238 306 523 283 206 97 65 57 78 132 197
4 218 259 323 519 281 206 89 61 57 78 140 193
5 217 263 329 511 274 201 88 58 53 78 143 189
6 212 251 331 509 262 204 86 54 50 82 146 189
7 207 242 345 492 255 212 84 53 55 87 145 196
8 203 241 358 465 248 219 84 58 60 89 145 203
9 207 231 364 433 247 214 89 63 64 93 149 206
10 213 220 368 408 249 201 90 66 63 90 154 211
11 217 222 364 396 256 189 86 67 66 89 159 213
12 214 230 366 384 258 174 80 66 75 88 161 223
13 211 226 369 373 256 167 77 66 80 88 160 227
14 207 229 382 373 257 175 77 67 72 87 161 226
15 208 234 407 366 255 176 74 66 67 95 166 234
16 206 241 414 371 251 164 71 65 63 108 164 232
17 197 248 419 396 251 157 66 64 61 117 166 226
18 188 248 436 399 248 152 64 64 66 113 164 227
19 191 253 451 380 243 144 63 74 76 107 158 226
20 198 251 448 362 236 136 64 105 77 110 151 216
21 203 249 440 341 229 131 66 99 73 122 153 210
22 212 255 455 331 220 124 69 80 72 125 159 211
23 223 263 485 334 208 120 74 69 69 119 169 213
24 236 267 486 337 198 121 86 63 70 117 176 215
25 270 290 467 334 197 120 90 58 71 115 179 217
26 306 314 456 326 201 118 82 52 75 121 188 216
27 309 312 454 321 205 114 74 49 78 121 195 217
28 315 301 454 318 199 111 71 53 79 121 193 217
29 295 298 451 316 187 112 70 57 85 124 193 210
30 267   467 312 182 109 70 60 90 133 196 208
31 247   488   184   66 63   131   209