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


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Due to a lapse in government funding, this website will not be updated except to provide important public safety information. For more information please visit: www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

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 01209700 NORWALK RIVER AT SOUTH WILTON, CT


Western Connecticut Planning Region County, Connecticut
Hydrologic Unit Code 011000060202
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 71 61 78 121 90 63 31 20 13 34 36 69
2 73 79 98 119 83 61 26 17 28 30 34 78
3 70 97 89 126 77 52 25 16 21 31 36 78
4 71 82 86 132 76 52 26 19 20 26 31 75
5 67 74 86 137 74 51 25 17 14 25 32 71
6 61 64 112 115 87 61 26 15 22 23 33 68
7 58 63 128 102 74 57 31 18 29 23 32 73
8 67 64 102 102 67 53 24 18 25 23 45 71
9 64 58 95 96 69 48 28 18 22 30 51 74
10 79 62 104 121 72 46 22 24 18 26 50 72
11 72 65 108 93 76 40 19 21 18 26 47 79
12 69 60 98 90 74 39 18 23 23 30 47 88
13 72 70 103 102 70 45 24 19 23 31 52 80
14 72 70 120 97 69 45 26 19 30 34 48 85
15 65 66 105 105 78 40 24 18 19 35 45 73
16 61 66 94 151 83 36 21 16 22 29 43 77
17 57 65 104 128 90 38 20 14 28 28 51 74
18 65 66 102 99 70 39 19 44 28 32 44 84
19 68 63 108 94 69 58 16 31 21 35 41 69
20 65 68 107 96 69 40 15 20 18 53 53 59
21 80 67 114 90 60 35 16 22 18 43 55 87
22 65 70 148 82 53 38 16 19 20 33 56 83
23 64 71 144 100 50 36 19 19 21 29 61 75
24 83 81 117 96 67 38 19 17 30 39 55 76
25 105 95 116 84 62 33 18 14 34 34 53 84
26 119 93 100 83 56 29 18 13 37 42 61 78
27 111 84 115 100 48 28 17 14 41 47 72 79
28 110 79 111 85 49 32 17 34 35 51 65 79
29 83 76 112 79 55 31 17 23 53 48 63 73
30 71   117 75 65 39 16 18 41 44 65 69
31 65   123   64   18 14   36   66