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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 01094400 NORTH NASHUA RIVER AT FITCHBURG, MA


Worcester County, Massachusetts
Hydrologic Unit Code 01070004
Latitude  42°34'34", Longitude  71°47'19" NAD27
Drainage area 64.2  square miles
Contributing drainage area 64.2  square miles
Gage datum 394.13 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 1972-10-01 -> 2021-09-30)

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
1 132 109 144 339 182 138 79 47 32 56 102 145
2 134 123 153 337 176 135 84 47 26 58 108 154
3 127 155 154 321 167 118 64 40 27 55 113 154
4 127 151 160 324 159 115 55 43 30 64 98 138
5 139 145 161 364 148 115 55 39 30 56 97 130
6 124 130 177 335 148 157 52 36 32 60 102 130
7 114 123 214 304 155 163 49 38 62 52 91 140
8 134 111 198 266 141 143 51 46 53 52 91 135
9 138 104 228 244 134 117 55 47 45 76 119 134
10 118 102 213 263 142 103 50 54 37 59 112 152
11 126 107 220 264 153 98 44 52 36 57 117 146
12 135 113 227 248 148 95 42 61 31 70 113 151
13 137 118 228 248 149 95 57 60 30 72 122 145
14 135 122 269 245 161 130 58 58 30 73 121 167
15 125 112 291 225 145 102 43 48 32 110 117 160
16 122 130 244 288 152 95 39 46 33 88 113 147
17 114 121 236 276 157 103 40 38 40 89 132 159
18 113 125 232 224 142 93 38 45 70 79 116 172
19 132 129 242 204 140 85 40 58 56 79 100 159
20 141 126 245 188 138 74 38 54 46 108 105 137
21 121 145 228 194 135 70 37 48 39 127 118 160
22 112 156 282 212 117 68 38 45 41 104 117 156
23 116 153 257 194 108 75 41 38 49 98 127 135
24 153 171 227 196 124 76 64 33 49 99 114 167
25 181 212 218 187 131 74 52 35 60 105 122 203
26 177 211 226 174 138 72 42 31 69 106 135 172
27 197 174 252 197 121 62 46 29 85 99 152 161
28 194 165 247 194 107 68 55 49 62 114 141 147
29 149 192 285 183 111 70 50 51 68 122 138 135
30 127   322 178 134 76 43 45 63 147 132 133
31 119   323   130   41 36   109   126