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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
1 202 197 243 565 315 234 124 88 75 101 151 208
2 213 205 251 570 293 229 145 94 86 97 163 216
3 216 242 259 571 286 202 121 78 71 90 191 211
4 214 263 273 529 288 194 106 81 71 98 166 196
5 211 238 269 577 277 183 108 76 66 97 170 201
6 205 210 290 568 255 230 102 71 67 109 159 216
7 205 222 334 513 252 232 94 72 94 108 154 242
8 212 228 305 449 245 203 94 86 85 101 157 218
9 222 194 352 413 248 185 101 85 82 119 183 216
10 237 190 336 416 256 169 98 94 75 99 175 231
11 221 216 321 419 261 160 97 92 107 92 184 248
12 209 204 367 405 260 156 96 96 120 101 183 253
13 219 202 359 419 250 162 103 96 97 102 189 237
14 222 213 395 424 258 187 106 94 81 104 202 248
15 215 211 418 389 245 172 86 81 91 179 183 251
16 212 235 401 455 255 154 97 80 78 159 173 227
17 191 216 395 473 257 160 92 76 80 142 189 231
18 189 237 483 420 248 149 95 86 113 125 169 272
19 202 225 482 381 245 139 101 100 104 117 152 255
20 213 219 421 356 236 138 99 90 107 149 168 225
21 209 234 410 344 233 133 97 80 150 172 179 238
22 206 252 471 353 220 134 98 80 118 142 183 232
23 214 265 440 361 201 134 97 75 102 134 195 224
24 236 270 405 348 213 146 114 72 94 146 175 236
25 300 301 402 335 220 180 92 75 104 162 187 267
26 306 310 414 315 228 142 82 66 106 152 220 236
27 307 269 447 326 213 134 87 66 119 142 212 231
28 282 251 428 325 200 139 99 82 101 153 203 218
29 238 254 453 328 192 133 102 82 107 159 235 206
30 210   505 322 210 127 109 79 112 180 213 206
31 202   538   209   92 85   164   199