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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 01105554 NEPONSET RIVER AT GREENLODGE ST NEAR CANTON, MA


Norfolk County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°12'33", Longitude  71°08'47" NAD27
Drainage area 83.7  square miles
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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 2003-10-01 -> 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
1 234 201 280 379 231 143 105 56 55 117 211 231
2 227 201 291 385 227 147 106 54 48 119 197 236
3 218 197 311 383 219 145 105 52 42 112 185 240
4 218 194 311 384 204 151 96 49 39 110 176 233
5 213 196 302 383 195 159 99 47 35 110 171 217
6 210 201 290 371 201 166 102 47 38 105 162 207
7 208 206 284 365 193 163 105 42 57 105 160 204
8 205 210 292 360 190 185 96 58 62 97 161 211
9 203 206 302 349 183 194 94 76 66 94 166 216
10 197 201 305 334 184 194 91 87 61 86 163 237
11 201 200 307 315 171 190 80 80 64 77 161 249
12 219 201 308 300 155 194 73 68 67 84 156 259
13 244 204 312 297 150 187 72 61 69 84 155 281
14 251 227 327 289 162 184 68 56 66 85 164 285
15 255 244 376 273 175 179 63 70 64 113 175 284
16 253 246 409 275 192 168 56 91 60 152 183 276
17 242 247 412 292 204 168 56 78 52 166 201 273
18 236 244 399 295 203 159 64 64 56 156 215 268
19 243 243 374 286 208 155 61 55 77 149 209 251
20 238 250 353 273 203 145 52 49 79 151 199 222
21 225 245 336 267 189 144 47 50 70 144 190 209
22 209 236 321 261 174 141 51 56 61 129 184 206
23 195 232 315 275 162 138 64 56 55 136 189 208
24 207 237 312 291 157 130 95 51 54 142 201 232
25 224 258 302 282 166 127 110 51 49 154 221 232
26 240 278 289 270 172 130 102 53 54 166 233 226
27 242 282 282 264 171 118 90 49 66 167 243 232
28 238 284 279 260 166 118 80 56 77 179 250 240
29 230 273 290 253 160 121 77 68 98 199 246 236
30 220   328 240 158 114 65 69 111 222 235 244
31 211   363   150   58 63   222   239