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USGS Daily Statistics for the Nation

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 01171500 MILL RIVER AT NORTHAMPTON, MA


Hampshire County, Massachusetts
Hydrologic Unit Code 01080201
Latitude  42°19'08", Longitude  72°39'56" NAD27
Drainage area 52.6  square miles
Contributing drainage area 52.6  square miles
Gage datum 169.34 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 1938-10-01 -> 2025-09-30)

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
1 104 85 112 287 167 128 59 37 28 59 70 116
2 103 96 119 294 149 114 52 42 36 51 75 112
3 95 115 116 298 148 107 52 33 27 45 108 101
4 90 111 134 296 154 101 56 35 28 54 78 95
5 91 108 120 322 152 88 51 37 26 48 88 103
6 95 94 139 293 154 133 47 30 30 51 78 108
7 87 95 169 270 132 120 42 37 47 47 78 109
8 91 92 149 240 121 93 41 50 39 52 87 103
9 101 79 174 220 132 83 41 45 34 68 117 104
10 104 79 149 233 141 85 64 54 31 47 86 108
11 97 102 167 224 142 80 46 44 42 45 88 124
12 96 93 164 240 144 80 42 51 48 51 102 136
13 94 89 176 230 137 82 43 50 36 47 94 124
14 99 91 182 223 129 99 54 42 32 55 85 119
15 90 94 185 205 113 88 39 41 37 103 84 113
16 87 104 178 270 118 85 61 34 38 76 81 99
17 80 93 200 234 140 77 44 29 50 80 91 107
18 92 103 192 202 134 66 54 43 53 58 80 138
19 96 99 193 192 134 67 48 79 47 60 70 101
20 94 116 221 196 126 59 42 39 40 88 96 86
21 89 109 205 179 121 58 46 33 34 80 88 133
22 90 117 260 172 112 54 45 35 36 61 93 104
23 93 114 226 200 104 58 53 38 41 63 94 107
24 107 123 213 190 121 60 47 33 40 75 79 117
25 123 143 221 180 129 54 36 28 51 70 99 131
26 136 140 228 178 121 55 38 25 49 67 103 112
27 141 124 245 179 108 50 40 26 60 64 109 112
28 120 117 233 172 101 65 44 59 60 81 100 105
29 105 121 252 170 112 58 51 33 70 81 101 95
30 91   269 157 122 73 46 30 72 82 106 107
31 92   293   117   40 28   81   117