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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 01077400 COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH


Grafton County, New Hampshire
Hydrologic Unit Code 01070001
Latitude  43°42'14", Longitude  71°50'00" NAD83
Drainage area 21.4  square miles
Gage datum 608.42 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 2007-10-01 -> 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 30 28 38 113 89 33 59 18 7.7 76 63 84
2 36 22 52 100 77 46 75 11 33 55 59 81
3 28 23 37 130 64 47 57 11 15 47 94 85
4 26 31 34 132 56 25 31 9.5 9 31 51 52
5 26 26 28 104 54 28 22 10 11 20 54 40
6 27 25 30 105 63 60 14 7.1 22 14 52 52
7 27 20 90 124 50 43 12 5.7 32 24 47 43
8 22 22 57 144 65 29 13 5.5 25 22 34 48
9 20 21 61 139 63 21 12 5 12 17 33 36
10 55 18 68 164 60 20 15 7.9 7.2 15 38 81
11 50 17 97 212 48 33 79 9.2 8 21 31 64
12 129 19 76 189 37 41 69 9 9 18 25 97
13 106 22 105 209 31 34 19 21 14 20 35 87
14 46 16 76 197 53 29 16 19 18 40 46 98
15 44 15 77 201 71 19 11 15 9.6 78 48 68
16 33 19 64 147 66 19 9.3 23 6.5 78 43 54
17 27 25 68 178 81 20 8.8 9.4 6.4 67 52 44
18 24 18 88 113 61 14 9.4 14 7.6 33 42 49
19 33 18 90 107 70 35 8.7 8.4 13 32 37 46
20 25 19 73 142 64 30 9.3 5.4 5.3 42 74 33
21 21 36 63 137 46 30 6.3 8.7 4.3 24 42 90
22 20 35 50 104 43 16 15 40 5.8 23 30 111
23 22 25 79 126 39 18 24 17 5.3 54 28 58
24 60 39 53 94 35 19 27 8.4 5.9 60 36 66
25 77 105 41 86 41 22 19 11 8 60 48 64
26 58 88 43 120 77 32 25 11 12 103 53 41
27 33 53 55 133 38 26 13 5.9 17 65 70 57
28 28 43 61 82 51 73 29 140 26 67 77 80
29 23 46 99 65 47 71 26 43 29 75 46 51
30 20   137 53 38 43 29 15 60 266 73 36
31 49   140   38   30 9.1   85   31