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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 02101726 ROCKY R AT US 64 NEAR SILER CITY, NC


Chatham County, North Carolina
Hydrologic Unit Code 03030003
Latitude  35°44'06", Longitude  79°25'24" NAD27
Drainage area 68.7  square miles
Gage datum 482.9 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 2008-10-01 -> 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 56 75 105 66 77 11 46 27 12 21 7.9 40
2 57 49 211 43 41 12 22 13 13 10 36 45
3 218 83 145 51 25 53 47 16 6.7 91 54 84
4 126 86 113 36 24 26 33 38 4 20 25 25
5 83 148 100 51 30 26 17 11 3 9.1 61 33
6 60 263 80 64 35 24 23 7.8 2.6 6.7 23 21
7 49 194 199 204 34 63 38 5.1 2.5 6.5 15 18
8 33 69 97 155 21 56 19 222 2.5 119 13 15
9 80 47 77 149 15 17 43 98 2.6 65 39 70
10 99 57 69 76 13 45 19 44 2.5 11 53 77
11 97 60 50 57 12 115 30 21 2.9 60 30 66
12 115 164 94 83 14 157 23 31 3.3 48 240 41
13 177 204 98 251 27 21 11 21 2.9 15 307 42
14 90 115 69 82 28 13 9.3 11 2.8 9.3 47 154
15 53 97 83 78 37 8.9 7.9 11 17 7.2 90 163
16 42 189 98 111 66 11 5.9 6.7 138 7.1 45 110
17 68 84 214 51 20 24 4.7 7.1 526 6.4 20 102
18 70 104 78 61 37 15 8.1 7.9 46 5.5 15 84
19 44 95 68 120 45 13 7.4 8.4 40 5.2 77 54
20 52 78 77 114 44 62 4.8 20 12 7.1 27 103
21 38 89 150 52 137 24 92 30 11 4.2 14 117
22 45 126 58 32 86 14 61 25 18 3.7 12 159
23 63 200 40 29 48 25 18 10 33 3.6 33 177
24 92 167 49 75 39 15 23 10 8.3 3.4 45 159
25 208 92 110 184 53 9.5 35 6.7 38 3.3 30 113
26 101 71 71 47 23 7.6 22 5.3 15 26 20 79
27 72 87 88 33 38 36 9 3.8 70 44 19 96
28 147 52 169 26 35 48 7.1 3.2 29 11 14 106
29 65 47 124 39 44 54 26 3.1 53 9.5 29 143
30 42   78 88 32 19 19 2.9 44 9.3 60 253
31 82   65   16   7.4 3.1   8.4   118