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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 142.12 feet above NGVD29
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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
1 204 235 288 498 300 192 106 67 63 88 126 195
2 211 227 287 518 289 200 104 67 59 82 125 196
3 213 238 306 524 278 207 97 65 57 78 132 198
4 215 259 324 517 277 208 89 61 57 78 140 194
5 215 264 330 508 272 202 88 58 53 78 144 190
6 209 251 333 507 260 206 86 54 50 83 146 189
7 205 241 347 491 253 214 84 53 55 88 145 197
8 201 240 360 465 247 221 84 58 60 89 145 204
9 206 230 366 433 246 215 89 63 64 94 149 207
10 212 219 371 407 249 203 90 66 63 91 155 209
11 217 221 367 395 255 190 86 67 66 90 160 209
12 212 228 369 384 257 175 80 66 75 89 162 219
13 209 225 371 373 255 168 77 66 80 89 160 224
14 205 227 384 370 257 176 77 67 72 88 162 222
15 207 233 409 362 255 177 74 66 67 96 167 228
16 205 240 417 368 250 165 71 65 63 109 165 226
17 196 247 422 394 250 158 66 64 61 116 167 221
18 187 247 439 397 248 153 64 64 66 111 165 223
19 191 252 455 378 243 145 63 74 76 106 159 223
20 198 251 450 360 237 137 64 105 77 110 152 214
21 203 249 442 339 229 132 66 99 73 122 153 208
22 212 255 458 330 221 125 69 80 72 126 159 211
23 224 264 489 333 209 122 74 69 69 120 170 213
24 237 268 488 337 199 121 86 63 70 117 177 215
25 271 291 467 334 198 120 90 58 71 116 179 217
26 304 315 455 326 203 118 82 52 75 122 187 216
27 307 312 454 320 206 114 74 49 78 122 195 217
28 314 300 455 315 200 111 71 53 79 119 194 217
29 294 294 452 313 188 112 70 57 85 122 193 210
30 267   467 310 183 109 70 60 90 131 197 207
31 247   487   185   66 63   130   205