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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 01204000 POMPERAUG RIVER AT SOUTHBURY, CT


Naugatuck Valley Planning Region County, Connecticut
Hydrologic Unit Code 011000050903
Latitude  41°28'54.98", Longitude  73°13'28.46" NAD83
Drainage area 75.1  square miles
Gage datum 164.52 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 1932-10-01 -> 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
1 181 137 176 277 187 153 75 46 42 74 93 148
2 173 154 183 270 164 145 62 45 78 64 87 153
3 164 185 200 280 168 121 60 45 42 67 121 140
4 156 176 209 302 168 115 60 50 42 60 95 139
5 164 149 214 336 158 131 59 46 35 52 103 151
6 171 132 261 296 180 142 65 42 45 56 101 153
7 162 157 301 257 162 128 55 46 60 58 98 165
8 166 160 228 245 149 105 52 38 72 55 108 153
9 159 125 240 228 149 92 52 46 53 66 123 157
10 183 138 218 241 151 90 68 67 44 57 122 154
11 154 162 245 218 157 87 57 62 46 54 109 169
12 149 140 278 217 155 100 47 56 47 58 130 183
13 149 148 258 233 157 104 53 53 56 57 119 170
14 160 151 256 220 147 115 61 59 53 62 114 171
15 168 155 254 224 148 98 58 45 51 103 110 157
16 146 154 261 281 148 85 70 50 50 125 105 145
17 126 153 264 251 163 92 53 47 70 78 122 156
18 145 156 266 220 145 87 60 111 54 76 104 180
19 158 147 262 210 156 87 49 172 53 75 102 146
20 153 154 268 209 143 74 46 63 58 145 130 142
21 143 159 273 188 137 68 60 61 72 106 127 201
22 145 164 338 179 123 79 56 75 65 77 130 161
23 160 165 289 209 124 72 60 63 58 70 134 150
24 189 185 268 198 141 78 64 51 60 88 115 163
25 259 211 255 197 137 75 49 43 72 83 126 181
26 248 211 241 190 132 67 51 42 77 92 140 165
27 220 186 271 198 127 64 49 48 104 87 142 155
28 207 192 256 181 122 72 58 110 79 101 141 157
29 162 168 255 173 132 63 55 50 112 99 150 153
30 145   262 162 158 91 51 41 100 99 146 166
31 139   294   143   49 35   89   190