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USGS Daily Statistics for Connecticut

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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
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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 1961-10-01 -> 2023-09-30)

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 69 60 78 121 91 63 31 21 13 30 36 70
2 72 79 98 120 84 62 26 18 29 27 34 79
3 70 98 87 124 78 53 25 16 21 29 36 78
4 71 82 86 129 77 53 26 19 21 25 31 75
5 67 75 85 137 74 52 25 17 15 25 33 72
6 61 65 104 114 83 62 25 15 22 22 33 69
7 58 64 118 101 73 58 31 16 29 21 32 74
8 68 64 98 102 66 53 24 17 25 21 45 73
9 64 58 92 96 68 49 28 17 22 29 52 76
10 63 63 94 122 70 46 22 23 18 26 51 73
11 66 66 104 94 75 40 18 21 18 25 48 75
12 65 61 96 85 74 40 17 23 23 30 48 86
13 63 70 102 100 70 46 25 19 23 31 53 79
14 68 70 120 96 70 45 26 19 30 34 49 85
15 63 67 105 105 78 41 23 17 19 35 46 73
16 59 66 94 153 83 37 20 15 23 28 44 77
17 55 64 103 129 91 39 19 14 29 28 52 74
18 64 66 101 99 71 39 17 23 28 32 45 71
19 68 64 109 94 70 59 15 18 21 36 42 61
20 65 69 108 97 71 41 15 15 18 54 54 55
21 81 68 115 91 60 36 16 19 18 42 57 86
22 65 71 150 83 53 39 16 17 20 33 53 82
23 65 72 140 101 50 37 20 17 22 30 61 75
24 84 82 112 98 68 39 19 16 31 40 55 76
25 105 97 115 85 63 34 18 13 35 35 53 84
26 120 94 100 84 57 29 18 12 37 43 62 79
27 112 85 115 101 49 28 17 14 42 47 71 80
28 109 78 110 87 50 32 17 35 35 52 65 73
29 81 72 112 80 55 32 18 23 45 49 63 70
30 69   118 77 65 39 16 18 32 43 66 67
31 64   124   64   19 14   36   64