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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 109.78 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 1979-10-01 -> 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
1 238 223 302 468 295 183 106 85 68 96 174 202
2 236 220 312 467 289 192 106 76 80 84 167 203
3 232 218 319 460 282 191 104 71 75 81 166 211
4 242 234 315 472 273 187 103 69 77 81 154 214
5 256 247 309 468 263 184 95 66 72 82 150 220
6 238 245 299 466 254 213 93 60 71 86 151 230
7 235 249 304 452 244 258 91 61 77 79 141 232
8 231 256 310 437 235 267 101 86 82 75 133 229
9 222 246 321 420 225 245 116 91 83 92 132 229
10 215 229 329 405 227 228 124 98 85 86 137 236
11 217 225 332 379 230 207 115 95 85 86 145 241
12 217 227 336 360 225 201 115 97 75 90 149 268
13 222 231 344 360 222 203 114 98 73 91 156 268
14 222 233 372 353 227 214 108 97 73 102 166 270
15 222 230 395 338 224 205 98 93 76 133 171 267
16 219 238 393 357 222 197 96 92 72 134 179 262
17 223 241 387 372 222 187 96 82 71 135 193 264
18 226 249 375 357 217 182 94 87 83 132 190 273
19 224 250 360 343 222 175 97 103 91 132 183 273
20 231 250 359 326 223 161 88 114 82 144 175 261
21 220 252 350 316 206 153 90 106 74 156 177 251
22 207 262 375 325 191 145 98 98 71 153 180 248
23 204 265 386 339 178 146 95 88 72 153 192 260
24 232 281 380 343 175 137 114 83 68 154 187 266
25 257 300 371 329 178 137 121 91 77 157 192 272
26 266 313 362 318 181 132 114 85 93 165 197 266
27 264 306 369 315 176 121 111 76 102 173 209 261
28 261 303 372 305 167 123 102 79 98 178 209 261
29 257 318 383 299 165 117 89 85 97 176 207 260
30 243   425 290 168 112 87 78 98 187 198 263
31 234   457   176   74 74   179   251