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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 11162619 PILARCITOS C AB STONE DAM NR HILLSBOROUGH CA


San Mateo County, California
Hydrologic Unit Code 18050006
Latitude  37°31'41.3", Longitude 122°24'00.3" NAD83
Drainage area 6.3  square miles
Gage datum 524 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 2021-10-01 -> 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 70 16 16 37 7.1 3.6 3.9 4.1 3.9 4.1 4.1 3.5
2 95 13 17 34 6.8 3.6 4 3.7 3.9 3.9 3.6 2.9
3 77 15 15 33 7.3 3.6 3.7 3.6 3.4 3.9 3.5 3.3
4 26 17 15 32 7.4 3.6 3.6 3.9 3 3.7 3.4 3.2
5 129 21 15 31 7.3 4.1 3.5 4.1 2.6 3.4 3.5 3
6 113 19 14 31 7.5 3.8 3.4 3.9 2.3 3.3 3.5 2.7
7 95 20 13 31 7.4 3.6 3.6 3.6 2.3 3.7 3.2 2.6
8 78 21 18 26 7.3 3.4 3.7 3.6 2.3 3.7 3.5 2.5
9 80 21 14 20 7.2 3.3 3.5 3.4 2.5 3.8 2.9 2.5
10 109 20 28 19 7 3.5 3.5 3.7 2.5 4.1 2.8 5
11 100 20 32 19 7 3.5 3.5 4.3 2.4 3.9 2.7 6.6
12 96 20 38 18 7.2 3.6 3.6 5.2 2.6 4 2.6 5.2
13 73 19 36 17 7.1 3.7 3.6 4.8 3.3 4.1 2.6 3.4
14 59 17 27 16 7.1 3.6 4.1 4.3 3.5 4.1 2.6 2.9
15 100 15 39 13 6.7 3.7 4.5 3.9 3.3 4.1 2.6 2.8
16 181 14 45 12 6.3 3.8 4.5 3.7 3 4 2.7 2.7
17 109 12 42 10 6.2 4.1 4.4 3.6 3 4 2.8 2.6
18 82 12 35 9.6 6.1 4.2 4.2 3.8 3 4.1 3.3 2.4
19 69 11 29 9.1 6.1 3.9 3.9 3.8 3 4.1 2.8 2.2
20 90 11 28 8.6 6.1 3.9 3.8 3.7 3.5 4 2 2.2
21 83 8.6 26 8.9 6.4 4.3 3.8 3.9 3.7 4 2 2.1
22 78 5.2 72 8.5 6.4 4.2 3.8 3.6 3.6 4.5 2 2.1
23 72 7.7 61 8.3 6.2 4.3 3.9 3.3 3.6 4.2 2.1 2.1
24 68 15 53 8.2 6.1 4.4 4 3.2 3.5 4.1 2.1 2.1
25 65 19 48 8.2 5.5 4.6 3.9 3.3 3.4 4 2.2 2.1
26 62 23 45 8 5.2 4.5 3.8 3.5 3.4 5 2.2 2.1
27 52 24 33 7.8 5 3.9 3.6 3.5 3.2 7 2.3 21
28 39 27 14 7.8 4.5 3.6 4.1 3.4 3.4 7.1 2.4 5.7
29 30   15 7.8 4.4 3.6 4.3 3.2 4.1 6.4 2.5 4.8
30 25   25 7.6 4.4 3.6 4.5 2.9 4.3 4.9 2.5 29
31 20   44   4.2   4.3 3.6   4   181