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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 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 115.69 feet above NGVD29
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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 -> 2021-09-30)

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 77 122 85 64 32 21 11 30 34 70
2 73 80 98 121 82 63 26 18 12 28 32 80
3 70 99 87 127 77 53 23 16 17 30 35 79
4 72 80 84 132 75 54 25 19 18 25 30 76
5 68 74 84 141 73 54 25 18 13 24 32 73
6 61 64 105 117 84 64 25 15 19 22 33 70
7 58 64 120 102 73 60 32 16 27 21 32 72
8 68 64 100 95 66 55 24 18 24 21 45 72
9 64 58 93 95 68 49 21 17 21 29 53 76
10 64 63 95 124 71 47 18 24 18 26 51 73
11 67 67 106 94 76 41 17 21 17 25 48 75
12 66 61 97 85 75 41 16 24 23 30 46 87
13 62 71 104 102 72 47 24 19 22 31 51 80
14 68 72 120 98 71 47 26 19 31 33 48 87
15 64 69 105 106 81 42 23 17 19 35 45 74
16 60 66 95 156 86 38 20 16 23 28 43 77
17 55 64 105 132 94 40 19 15 29 28 52 74
18 64 65 102 101 74 41 17 24 28 32 45 71
19 68 64 109 92 72 62 14 19 21 36 42 61
20 63 70 110 97 71 43 14 15 18 55 54 56
21 81 69 117 92 60 37 16 19 18 43 57 87
22 65 71 155 84 54 40 16 17 20 33 54 84
23 63 71 145 102 51 38 20 16 22 30 61 74
24 83 83 115 99 70 40 20 15 22 40 56 76
25 106 98 115 86 65 35 19 13 32 35 54 85
26 113 95 101 85 59 30 18 12 36 33 63 80
27 110 85 118 103 50 29 18 14 41 35 72 81
28 108 78 112 88 51 33 18 36 35 48 66 74
29 80 72 114 79 55 33 17 23 46 46 64 71
30 69   121 73 66 41 16 18 32 40 67 68
31 63   127   64   19 14   34   65