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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 01116000 SOUTH BRANCH PAWTUXET RIVER AT WASHINGTON, RI


Kent County, Rhode Island
Hydrologic Unit Code 01090004
Latitude  41°41'24", Longitude  71°33'59" NAD27
Drainage area 62.8  square miles
Contributing drainage area 62.8  square miles
Gage datum 216.9 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 1940-10-01 -> 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
1 170 189 188 243 173 142 79 55 52 72 97 141
2 176 188 192 242 173 138 76 53 57 72 100 147
3 181 193 197 245 163 137 72 52 59 72 98 152
4 180 195 205 238 158 132 59 56 61 70 97 154
5 172 188 203 239 161 123 63 62 58 71 98 148
6 169 180 201 245 161 129 69 60 56 72 100 148
7 169 181 210 231 156 136 71 57 55 73 100 154
8 165 176 209 224 150 138 73 58 64 72 98 161
9 169 172 210 221 157 129 71 61 64 74 101 163
10 169 170 208 216 160 118 70 61 64 75 104 164
11 171 176 206 214 154 118 66 62 65 71 100 164
12 166 167 205 211 151 114 65 69 70 63 109 165
13 173 165 202 205 153 115 67 71 66 67 112 172
14 174 169 223 217 151 125 74 64 69 73 114 168
15 170 164 237 214 148 128 76 64 65 80 114 170
16 173 167 228 212 147 112 74 64 64 90 115 177
17 173 175 221 214 150 106 73 63 69 88 120 173
18 174 178 235 212 149 110 69 61 67 84 125 176
19 175 174 233 212 151 107 63 64 63 83 120 194
20 178 176 230 205 145 108 61 65 60 83 114 189
21 178 178 226 199 140 103 63 65 59 87 116 183
22 175 174 239 194 137 98 61 62 59 83 117 187
23 178 174 253 190 135 96 61 56 64 81 117 183
24 180 174 243 188 135 92 66 54 65 79 119 175
25 197 176 227 200 139 93 68 53 66 81 124 164
26 212 181 218 198 146 90 65 56 70 84 125 174
27 217 185 207 194 148 84 61 55 72 85 131 181
28 207 191 203 192 145 82 61 54 73 87 131 178
29 196 167 211 187 132 81 56 52 73 89 136 179
30 188   245 182 112 81 56 50 73 98 137 180
31 189   281   129   55 51   98   176