Rubicon River below Hell Hole Dam CA

USGS Site No: 11428800Rubicon River • Placer County, CA

Current reading not available.

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Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 12
25th Low threshold 21
50th (Median) Normal (median) 22
75th High threshold 27
95th Very High threshold 955

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

86 43 0 cfs Sep 1 Sep 30
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
Sep 30, 2025 59
Sep 29, 2025 43
Sep 28, 2025 32
Sep 27, 2025 33
Sep 26, 2025 33
Sep 25, 2025 33
Sep 24, 2025 34
Sep 23, 2025 33
Sep 22, 2025 33
Sep 21, 2025 32
Sep 20, 2025 32
Sep 19, 2025 32
Sep 18, 2025 32
Sep 17, 2025 32
Sep 16, 2025 31
Sep 15, 2025 31
Sep 14, 2025 31
Sep 13, 2025 31
Sep 12, 2025 31
Sep 11, 2025 31
Sep 10, 2025 31
Sep 9, 2025 31
Sep 8, 2025 31
Sep 7, 2025 31
Sep 6, 2025 31
Sep 5, 2025 31
Sep 4, 2025 30
Sep 3, 2025 30
Sep 2, 2025 30
Sep 1, 2025 30

Station Information

USGS Site No
11428800
State
CA
County
Placer County
Coordinates
39.0566, -120.4080
Drainage Area
114 mi²
HUC Code
18020128
View on USGS NWIS →

Recent Extremes

Max discharge
59 cfs
Sep 30, 2025
Min discharge
25 cfs
Jun 24, 2025

Computed from the local daily-values archive.

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