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USGS Daily Statistics for North Carolina

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The daily maximum and minimum water level values for groundwater wells after September 30, 2023 are no longer being displayed on NWISWeb. However, these values can be determined using the instantaneous values that are available through the "Time-Series: Current/Historical Observations" option in the available data dropdown box for the station.


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 -> 2024-09-30)

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 58 76 113 70 86 12 49 27 2.9 19 8.1 43
2 59 48 184 45 46 12 24 13 3.4 8.1 38 48
3 232 89 148 54 27 56 50 17 3.7 95 57 89
4 134 93 121 38 24 27 35 40 3 20 26 26
5 88 164 105 55 28 28 18 11 2.6 8.4 65 35
6 63 295 81 70 34 25 25 7.8 2.4 6.1 24 23
7 51 218 218 227 35 67 40 5 2.2 6 16 19
8 34 76 103 161 21 60 20 19 2.3 126 14 16
9 85 51 67 163 15 18 46 30 2.4 69 42 75
10 104 61 53 82 13 48 20 13 2.4 11 57 82
11 102 65 48 56 12 122 32 14 2.8 63 32 46
12 120 141 100 85 12 168 25 30 3.3 51 256 30
13 186 128 107 279 13 22 12 20 2.9 15 327 41
14 94 103 74 89 13 13 9.8 9.5 2.7 9.5 50 162
15 55 98 91 85 25 9.4 8.3 11 18 7.3 93 172
16 44 197 103 123 68 12 6.1 6.2 142 7.2 46 116
17 72 81 227 56 20 26 4.9 6.8 500 6.4 20 107
18 73 109 81 67 39 15 8.4 7.7 39 5.5 15 89
19 46 101 73 135 45 14 6.8 8.2 38 5.2 82 57
20 54 83 84 128 44 66 4.6 21 11 7.3 28 109
21 40 96 166 58 145 26 96 31 10 4.2 15 125
22 47 138 62 35 91 15 13 26 18 3.7 13 169
23 66 223 40 32 51 27 7.6 10 34 3.6 35 188
24 98 184 50 83 41 15 5.2 11 7.6 3.3 47 170
25 220 101 121 208 56 10 4.8 6.9 6.7 3.2 32 121
26 107 77 78 53 24 8 4 5.4 9.7 28 21 84
27 76 96 69 36 39 39 5.3 3.8 7.6 46 20 102
28 156 56 111 28 35 51 5.7 3.2 11 12 15 113
29 69 45 126 43 46 58 6.2 3 51 9.8 30 150
30 41   81 99 33 20 5.3 2.9 43 9.7 64 266
31 88   69   16   4.5 3.1   8.7   123