Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

USGS Daily Statistics for Connecticut

Click to hide state-specific text



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 01209700 NORWALK RIVER AT SOUTH WILTON, CT


Fairfield County, Connecticut
Hydrologic Unit Code 01100006
Latitude  41°09'49.56", Longitude  73°25'10.36" NAD83
Drainage area 30.0  square miles
Gage datum 114.59 feet above NAVD88
Output formats
HTML table of all data
Tab-separated data
Reselect output format

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 1961-10-01 -> 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 70 62 78 121 91 63 31 20 13 34 36 70
2 73 80 99 120 84 62 26 18 28 30 34 79
3 70 98 90 127 77 52 25 16 21 31 36 79
4 72 83 87 134 77 52 26 19 20 26 31 76
5 68 75 86 139 73 52 25 17 14 25 33 72
6 61 65 106 116 83 62 26 15 22 23 33 69
7 59 64 126 102 73 57 32 18 29 23 33 74
8 68 64 101 102 66 53 24 18 25 23 45 72
9 65 58 95 97 67 48 28 18 22 30 52 76
10 79 63 104 122 70 46 22 24 18 26 50 73
11 72 66 108 94 75 39 19 21 18 26 48 79
12 69 61 99 90 73 39 18 23 23 30 48 87
13 73 70 104 102 69 45 25 19 23 31 52 80
14 73 70 121 98 69 45 26 19 30 34 49 86
15 66 67 106 106 77 40 24 18 19 35 45 73
16 62 66 95 153 83 36 21 16 22 29 44 77
17 57 63 103 129 90 39 20 14 28 28 51 74
18 66 66 101 100 71 39 19 44 28 32 45 85
19 69 63 108 95 69 59 16 31 21 36 42 69
20 65 69 108 97 70 40 15 20 18 54 53 60
21 81 68 114 91 60 35 16 22 18 43 56 88
22 66 70 149 83 53 39 16 19 20 33 56 84
23 65 72 145 101 50 37 20 19 21 30 62 76
24 84 82 118 97 68 39 19 17 30 40 56 77
25 107 96 117 85 63 34 18 14 34 35 53 85
26 121 93 101 84 56 29 18 13 37 43 62 79
27 112 84 116 100 48 28 17 14 41 47 73 80
28 111 79 112 86 50 32 17 34 35 52 66 80
29 84 76 113 80 55 32 17 23 53 49 64 73
30 71   119 76 66 39 16 18 41 44 66 69
31 65   124   64   18 14   37   66