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USGS Surface-Water 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 424752070491701 PLUM ISLAND R @ TPK BRIDGE AT PLUM ISLAND, MA


Essex County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°47'51.8", Longitude  70°49'16.7" NAD83
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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 2014-10-01 -> 2017-09-30)

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 -70 -49 -248 -12 54 133 234 56 186 147 134 180
2 -131 -94 -262 -163 18 135 197 261 163 143 122 128
3 -128 198 -288 -184 114 118 369 328 156 198 108 43
4 -242 -133 -296 -121 -29 458 495 338 112 117 40 -43
5 -61 -128 -35 -38 160 630 509 345 6.1 36 -11 -76
6 -38 -42 -60 229 580 730   269 9 8.2 43 -45
7 -27 -27 40 410 550 675   156 4.5 -16 -43 -94
8 44 246 -10 628 582 647   146 -54 -15 -8.1 31
9 142 830 311 466 497 314   69 -39 -58 65 98
10 366 461 420 443 440 210   -4.2 -111 -65 11 138
11 310 423 548 355 337 134   -42 -67 -15 89 144
12 166 268 363 274 254 -21   -86 -17 48 398 230
13 82 236 202 74 152 -116   -41 9.8 93 283 256
14 151 87 164 -25 82 -105   21 57 105 86 305
15 200 55 60 -108 31 -47   -2.5 12 188 204 405
16 279 251 50 -28 -20 -13   8.3 167 360 156 297
17 279 23 -23 26 13 59   22 212 354 140 228
18 123 -41 -134 -71 37 48   156 251 416 115 230
19 -44 62 -183 -28 57 161   220 272 47 156 121
20 1.8 79 -189 28 89 188   255 200 57 137 35
21 32 -25 -48 109 176 252   226 52 -127 93 149
22 177 56 18 131 198 226   133 19 54 141 137
23 137 78 66 219 279 301   93 -3 -25 193 208
24 780 54 97 239 202 310   89 -4 96 183 234
25 330 384 109 173 329 243   53 -49 132 178 104
26 265 -225 129 123 247 230   -1.9 -34 69 274 202
27 162 -237 97 199 202 268   -47 39 239 320 211
28 142 -227 -93 162 221 230 131 -50 8 299 352 193
29 128 -208 -253 102 162 216 65 9.7 184 432 355 168
30 42   -69 52 227 224 41 41 172 316 237 122
31 -28   43   167   -39 174   272   -19