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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 01094500 NORTH NASHUA RIVER NEAR LEOMINSTER, MA


Worcester County, Massachusetts
Hydrologic Unit Code 01070004
Latitude  42°29'42.23", Longitude  71°43'18.96" NAD83
Drainage area 110  square miles
Contributing drainage area 110  square miles
Gage datum 265 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 1934-10-01 -> 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
1 201 195 243 565 315 234 124 88 75 101 150 208
2 212 204 251 570 293 229 145 94 86 97 162 217
3 216 241 259 571 286 202 121 78 71 90 191 210
4 214 263 273 529 288 194 106 81 71 98 166 194
5 211 238 269 577 277 183 108 76 66 97 169 200
6 204 210 290 568 255 230 102 71 67 107 159 216
7 205 221 334 513 252 232 94 72 94 106 153 242
8 211 228 305 449 245 203 94 86 85 98 156 218
9 222 194 352 413 248 185 101 85 82 117 183 216
10 219 189 336 416 256 169 98 94 75 97 174 231
11 211 216 321 419 261 160 97 92 107 90 184 236
12 204 203 367 405 260 156 96 96 120 100 183 247
13 205 201 359 419 250 162 103 96 97 100 189 234
14 211 213 395 424 258 187 106 94 81 103 203 247
15 209 211 418 389 245 172 86 81 91 179 183 250
16 208 235 401 455 255 154 97 80 78 159 173 226
17 188 216 395 473 257 160 92 76 80 141 189 230
18 187 237 483 420 248 149 95 86 113 124 170 247
19 200 225 482 381 245 139 101 100 104 116 152 236
20 212 219 421 356 236 138 99 90 107 148 169 217
21 208 234 410 344 233 133 97 80 150 170 179 233
22 205 252 471 353 220 134 98 80 118 139 181 229
23 213 265 440 361 201 134 97 75 102 132 193 221
24 235 270 405 348 213 146 114 72 94 144 174 234
25 298 301 402 335 220 180 92 75 104 161 187 266
26 301 310 414 315 228 142 82 66 106 151 220 235
27 303 269 447 326 213 134 87 66 119 141 211 230
28 279 251 428 325 200 139 99 82 101 153 202 216
29 235 254 453 328 192 133 102 82 107 158 235 203
30 207   505 322 210 127 109 79 112 179 213 204
31 200   538   209   92 85   163   197