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USGS Daily Statistics for California

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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 11176500 ARROYO VALLE NR LIVERMORE CA


Alameda County, California
Hydrologic Unit Code 18050004
Latitude  37°37'24", Longitude 121°45'28" NAD27
Drainage area 147  square miles
Gage datum 513.18 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 1969-10-01 -> 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 31 43 76 23 9 6.2 8.9 8.9 9 9.3 6.8 5.6
2 45 25 91 40 9 6.9 9.4 9.2 8.8 9.3 6.7 5.5
3 47 19 78 45 6.6 7.1 10 9.5 8.7 8.5 6.9 4.8
4 36 37 67 41 4.5 7.2 10 9.5 8.3 8 7 4.7
5 28 59 75 39 4.4 7.3 10 9.6 8 7.7 6.5 4.6
6 53 55 78 38 4.5 7.3 10 9.1 8.2 7.9 6.4 4.7
7 57 48 60 22 4.6 7.3 10 8.8 8.1 8.2 6.3 4.7
8 34 71 64 10 4.7 7.1 9.9 9 8.6 7.4 5.9 5.2
9 15 106 74 10 4.6 7.1 9.6 8.8 8.4 7.1 6.4 5.6
10 19 108 47 10 4.9 7.1 9.9 8.6 7.9 7.3 7.2 5.6
11 7.8 87 68 22 4.8 6.8 11 8.7 7.8 7.3 7 5.6
12 49 87 71 27 4.8 6.7 11 9 7.9 7.3 6.5 5.7
13 63 90 79 21 4.8 6.6 12 8.7 8.3 7.5 6.8 5.9
14 31 100 61 16 4.9 6.3 12 9.7 8.2 7.6 6.5 6.4
15 23 98 49 12 4.9 6.5 12 10 8.1 7.1 6.6 6.5
16 31 95 52 7 4.8 7 12 11 8.3 6.1 6.9 6.4
17 66 80 37 7.4 4.7 7.3 12 10 8 5.9 6.5 5.4
18 76 70 22 7.6 4.9 7.4 12 10 8.4 6 5.9 5.4
19 69 84 18 7.5 5 8.2 12 10 8.5 6.8 6.4 5
20 46 116 29 7.5 5.5 8.1 12 10 7.7 6.9 6.3 4.7
21 32 127 41 7.4 6 8 12 9.6 7.1 7.6 6.4 4.6
22 29 181 46 7.1 6.4 8 11 9 7.6 7.8 6.5 4.6
23 41 185 50 6.4 6.7 8.3 11 9.3 7.6 6.6 6.3 4.7
24 73 162 69 5.8 6.5 8.4 10 9.5 7.2 5.5 6.1 4.4
25 91 114 87 5.1 6.5 8.3 9 9.3 7 5 5.6 4.2
26 77 78 90 4.9 6 8.7 8.9 9.2 8.2 5.1 5.5 8.3
27 76 81 84 4.8 5.9 8.8 8.7 9.3 7.8 6.7 5.4 17
28 105 77 58 7.2 6.1 8.5 8.8 8.9 8 7.1 5.6 20
29 101 21 23 8.7 6.4 8.1 9.2 8.7 8.2 7 5.8 18
30 70   14 8.9 6.6 8.6 8.9 9.2 8.2 6.8 5.7 16
31 55   8.9   6.3   8.8 9.5   6.9   16