Nf American River at North Fork Dam CA

USGS Site No: 11427000 • Nf American River • Placer County, CA

Nf American River at North Fork Dam CA on the Nf American River is currently at 438 cfs (High — 93th percentile for this date) . Gage height: 0.97 ft.

Reading from

438
CFS Discharge
0.97
Gage Height (ft)
High
Flow Condition
N/A
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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 33
25th Low threshold 40
50th (Median) Normal (median) 60
75th High threshold 86
95th Very High threshold 471 Today: 438 cfs

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.

4.9k 2.4k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 408 —
May 27, 2026 416 —
May 26, 2026 396 —
May 25, 2026 405 —
May 24, 2026 427 —
May 23, 2026 446 —
May 22, 2026 440 —
May 21, 2026 449 —
May 20, 2026 462 —
May 19, 2026 485 —
May 18, 2026 518 —
May 17, 2026 559 —
May 16, 2026 603 —
May 15, 2026 647 —
Apr 20, 2026 1,430 —
Apr 19, 2026 1,510 —
Apr 18, 2026 1,530 —
Apr 17, 2026 1,700 —
Apr 16, 2026 1,900 —
Apr 15, 2026 2,010 —
Apr 14, 2026 2,300 —
Apr 13, 2026 2,860 —
Apr 12, 2026 3,250 —
Apr 11, 2026 1,880 —
Apr 10, 2026 916 —
Apr 9, 2026 829 —
Apr 8, 2026 880 —
Apr 7, 2026 960 —
Apr 6, 2026 1,040 —
Apr 5, 2026 1,160 —

Station Information

USGS Site No
11427000
State
CA
County
Placer County
Coordinates
38.9360, -121.0238
Drainage Area
342 mi²
Datum (ft)
717.3
HUC Code
18020128
View on USGS NWIS →

Recent Extremes

Max discharge
11,000 cfs
Dec 22, 2025
Min discharge
44 cfs
Sep 25, 2025

Computed from the local daily-values archive.

Nearby Gauges

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