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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 10336660 BLACKWOOD C NR TAHOE CITY CA


Placer County, California
Hydrologic Unit Code 16050101
Latitude  39°06'27", Longitude 120°09'40" NAD27
Drainage area 11.2  square miles
Gage datum 6,228.47 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 1960-10-01 -> 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 48 24 20 39 106 129 54 9.1 3.3 2.5 6.7 11
2 45 16 19 39 104 126 54 8.5 2.9 2.6 6.6 16
3 20 16 20 41 107 126 49 8.2 2.7 2.6 6.3 11
4 16 17 22 43 108 131 46 7.7 2.6 2.5 5.9 9.5
5 16 21 22 45 115 130 45 7.3 2.6 2.6 6 12
6 15 16 22 49 112 127 43 6.8 2.6 2.6 5.8 10
7 14 18 24 57 112 121 40 6.5 2.5 2.6 7.4 9.1
8 24 26 35 53 116 114 37 6.3 2.5 2.6 6.4 8.8
9 23 27 27 54 116 113 38 6 2.5 2.6 7.6 9.8
10 17 22 26 54 115 110 33 5.7 2.6 2.9 8.8 18
11 17 17 26 56 116 110 30 5.4 2.4 3.4 14 14
12 24 16 24 58 118 107 28 5.2 2.4 3.7 13 18
13 27 18 26 59 121 105 27 4.9 2.3 6.8 10 12
14 22 22 26 59 126 105 26 4.8 2.3 4.6 11 12
15 19 24 26 60 131 103 24 5 2.3 3.9 11 17
16 27 28 40 60 141 99 23 4.7 2.3 5.7 14 18
17 25 28 34 62 138 96 22 4.4 2.3 4.4 15 13
18 21 31 28 64 144 94 20 4.3 2.4 3.5 12 13
19 20 25 28 66 143 91 19 4.4 2.4 3.8 11 28
20 21 23 29 67 139 85 18 4.2 2.3 3.8 11 39
21 32 20 33 70 135 82 17 4.2 2.2 3.6 12 26
22 26 19 35 72 136 81 16 4 2.3 3.5 12 40
23 20 20 35 75 139 78 15 3.8 2.3 4 16 38
24 19 18 36 75 139 75 14 3.6 2.4 10 19 35
25 17 18 34 76 139 72 13 3.4 2.9 8.5 13 23
26 16 17 35 81 137 71 12 3.2 2.7 9.4 10 19
27 16 19 34 85 136 66 12 3.1 2.5 5.8 9.8 16
28 15 21 35 89 134 62 11 3 2.4 6.7 9.2 17
29 15 20 35 93 132 61 11 3 2.4 5.6 9.1 17
30 19   37 97 130 56 10 2.8 2.4 7.5 10 24
31 31   39   133   9.9 2.8   6.9   46