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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 04213401 WALNUT CREEK AT US ROUTE 20 AT SILVER CREEK NY


Chautauqua County, New York
Hydrologic Unit Code 04120101
Latitude  42°32'18.1", Longitude  79°10'08.3" NAD83
Drainage area 25.6  square miles
Gage datum 587.55 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 2016-10-01 -> 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 91 43 51 109 60 17 8.2 7.1 4.8 6.1 88 90
2 109 46 78 71 72 20 40 6.5 11 26 72 114
3 75 49 96 97 97 16 27 6.5 5.1 9.4 72 100
4 94 68 105 151 61 14 11 5.6 5.8 14 39 96
5 61 73 122 72 49 13 7.5 5 9.3 7.6 95 63
6 46 61 111 85 36 17 6.7 4.8 7.9 20 77 57
7 41 57 75 76 34 14 18 6.1 9.4 65 36 45
8 47 59 54 55 32 13 8 7.6 7.2 13 28 41
9 77 88 60 47 28 18 6.9 9.9 4.8 14 27 80
10 80 67 93 42 38 17 6.5 6.2 14 10 31 103
11 93 45 106 43 30 20 14 6.1 6 14 57 98
12 146 45 78 130 35 13 17 7.2 7.5 15 68 50
13 147 55 61 98 35 15 7.8 4.3 13 19 47 45
14 85 46 67 51 43 28 23 8.2 9.9 19 44 57
15 66 69 74 61 99 16 10 4.6 18 15 36 66
16 58 61 63 105 40 21 11 4.1 7.9 23 48 61
17 60 84 123 75 28 17 41 7 4.7 22 51 133
18 63 89 64 59 26 13 29 14 3.9 16 46 57
19 83 60 58 65 25 12 11 18 4.1 24 77 69
20 73 66 75 62 29 22 8.7 8.3 3.8 47 45 54
21 56 56 53 58 22 41 23 6.2 3.3 51 44 74
22 84 93 51 59 32 11 16 7.8 4 30 71 50
23 67 105 66 44 48 10 9.6 6 5.1 22 47 63
24 77 59 59 42 24 9.8 8.2 5 3.6 23 37 57
25 117 79 66 42 19 7.7 8.6 22 5 27 77 75
26 90 84 63 70 17 10 5.7 5.6 35 26 72 49
27 60 80 68 51 34 11 6.1 5.8 37 51 64 70
28 74 65 85 42 24 12 6.2 5.3 26 36 70 79
29 62 55 118 55 25 13 16 5.8 7.1 80 45 87
30 54   90 71 20 8.9 9.5 9.6 6.4 45 94 123
31 44   98   16   6.6 12   72   106