San Joaquin River near Newman CA

USGS Site No: 11274000 • San Joaquin River • Stanislaus County, CA

San Joaquin River near Newman CA on the San Joaquin River is currently at 570 cfs (Normal — 48th percentile for this date) . Gage height: 49.56 ft.

Reading from

570
CFS Discharge
49.56
Gage Height (ft)
Normal
Flow Condition
Normal
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 180
25th Low threshold 275
50th (Median) Normal (median) 597 Today: 570 cfs
75th High threshold 942
95th Very High threshold 2,110

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.

18k 9.1k 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 516 —
May 27, 2026 473 —
May 26, 2026 478 —
May 25, 2026 492 —
May 24, 2026 476 —
May 23, 2026 453 —
May 22, 2026 444 —
May 21, 2026 448 —
May 20, 2026 458 —
May 19, 2026 482 —
May 18, 2026 499 —
May 17, 2026 504 —
May 16, 2026 515 —
May 15, 2026 528 —
Apr 20, 2026 1,020 —
Apr 19, 2026 957 —
Apr 18, 2026 926 —
Apr 17, 2026 936 —
Apr 16, 2026 936 —
Apr 15, 2026 887 —
Apr 14, 2026 906 —
Apr 13, 2026 917 —
Apr 12, 2026 878 —
Apr 11, 2026 810 —
Apr 10, 2026 761 —
Apr 9, 2026 744 —
Apr 8, 2026 771 —
Apr 7, 2026 819 —
Apr 6, 2026 902 —
Apr 5, 2026 959 —

Station Information

USGS Site No
11274000
State
CA
Coordinates
37.3505, -120.9771
Drainage Area
9,520 mi²
Datum (ft)
2.2
HUC Code
18040002
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
63.0 ft
Flood Stage
69.4 ft
Moderate Flood
70.7 ft
Major Flood
71.7 ft

Currently 19.84 ft below flood stage.

Recent Extremes

Max discharge
4,020 cfs
Feb 23, 2026
Min discharge
120 cfs
Sep 3, 2025
Days at flood stage
0

Computed from the local daily-values archive.