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USGS Daily Statistics for Massachusetts

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.


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 01098530 SUDBURY RIVER AT SAXONVILLE, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01070005
Latitude  42°19'31", Longitude  71°23'53" NAD27
Drainage area 106  square miles
Contributing drainage area 106  square miles
Gage datum 110.55 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 1979-10-01 -> 2019-09-30)

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
1 228 222 309 494 274 187 107 81 64 91 171 204
2 225 219 319 492 265 199 97 73 56 87 162 204
3 221 218 327 480 259 199 91 69 52 85 163 215
4 230 231 322 491 255 195 87 69 54 81 153 219
5 244 244 315 489 246 194 82 64 52 77 150 223
6 230 242 304 490 240 227 83 58 53 81 151 230
7 229 247 308 477 235 277 82 59 64 73 141 232
8 228 250 315 460 230 287 96 74 69 72 133 230
9 220 240 328 440 221 260 102 77 74 93 134 229
10 213 224 337 422 226 242 103 86 77 87 140 235
11 216 221 340 397 231 220 91 86 81 87 148 239
12 217 226 345 380 227 213 87 91 70 91 151 271
13 221 233 353 377 223 215 89 97 69 93 153 273
14 222 234 374 366 227 227 87 99 69 102 160 271
15 223 233 396 346 225 218 78 93 74 137 167 266
16 215 242 396 365 225 209 76 93 71 138 175 259
17 213 247 391 379 226 198 78 83 70 132 192 259
18 216 251 380 363 222 193 74 83 81 130 192 269
19 214 251 363 345 227 186 78 88 79 132 185 270
20 218 254 362 329 227 170 72 98 70 146 178 262
21 211 258 357 320 205 159 79 89 64 161 181 256
22 201 270 390 326 193 149 80 81 65 160 184 252
23 196 269 403 327 180 152 77 75 69 161 194 255
24 226 287 389 332 179 144 102 72 65 163 187 259
25 255 308 377 322 183 144 113 76 74 165 191 258
26 256 321 366 315 188 139 106 67 92 170 198 250
27 252 311 378 308 186 127 103 62 103 172 212 249
28 250 308 382 297 175 130 95 70 98 173 212 252
29 248 330 396 291 164 119 86 79 98 174 212 251
30 235   446 281 170 115 79 72 96 187 203 255
31 230   485   177   66 70   177   238