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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 01401000 Stony Brook at Princeton NJ


Mercer County, New Jersey
Hydrologic Unit Code 02030105
Latitude  40°19'59", Longitude  74°40'55" NAD83
Drainage area 44.5  square miles
Gage datum 62.23 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 1953-10-01 -> 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 98 59 115 148 96 47 20 29 30 28 28 87
2 102 96 139 179 65 50 22 53 81 20 29 89
3 88 122 108 140 67 45 34 39 21 19 33 82
4 91 111 121 143 66 67 23 35 39 18 24 81
5 74 88 119 146 64 53 24 25 13 18 32 73
6 72 94 156 116 74 56 21 24 28 14 32 80
7 87 114 162 114 95 53 38 23 35 12 34 89
8 93 107 129 121 81 54 19 17 42 22 83 88
9 101 68 132 107 78 36 19 22 17 39 47 117
10 104 79 136 120 79 42 15 31 15 25 43 84
11 69 89 123 77 71 32 16 25 24 20 38 149
12 101 94 119 93 76 33 23 27 61 51 50 129
13 75 138 147 121 68 59 44 66 34 18 62 94
14 81 103 175 91 62 48 82 49 23 31 52 149
15 91 102 127 124 53 28 52 24 16 33 44 93
16 76 92 98 214 66 20 34 16 64 23 48 118
17 66 86 111 138 70 41 21 11 44 19 65 100
18 102 100 116 75 62 34 28 19 20 22 41 129
19 121 113 131 77 61 35 16 38 23 85 38 67
20 149 107 140 75 58 33 14 18 34 50 70 57
21 113 103 162 66 49 40 34 17 30 38 76 141
22 75 110 186 64 39 57 32 111 24 25 63 87
23 87 118 173 76 38 41 28 39 23 24 61 88
24 122 158 135 67 69 38 45 20 33 27 42 98
25 150 179 132 84 57 24 36 14 43 41 81 140
26 148 129 108 72 48 17 20 15 32 46 74 110
27 112 100 112 95 80 17 29 72 44 36 75 92
28 127 122 111 88 43 46 62 144 33 75 94 85
29 99 87 137 77 82 31 56 20 46 60 90 87
30 74   150 84 72 37 49 16 41 56 89 85
31 60   135   43   34 10   32   67