Santa Ana River below Prado Dam CA

USGS Site No: 11074000 • Santa Ana River • Riverside County, CA

Santa Ana River below Prado Dam CA on the Santa Ana River is currently at 104 cfs (Normal — 49th percentile for this date) . Gage height: 2.32 ft.

Reading from

↑ Upstream on Santa Ana River
Santa Ana River at Santa Ana CA
104
CFS Discharge
2.32
Gage Height (ft)
Normal
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 36
25th Low threshold 64
50th (Median) Normal (median) 106 Today: 104 cfs
75th High threshold 177
95th Very High threshold 304

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.

1.1k 551 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 106 —
May 27, 2026 106 —
May 26, 2026 104 —
May 25, 2026 100 —
May 24, 2026 103 —
May 23, 2026 101 —
May 22, 2026 101 —
May 21, 2026 103 —
May 20, 2026 105 —
May 19, 2026 110 —
May 18, 2026 120 —
May 17, 2026 119 —
May 16, 2026 122 —
May 15, 2026 122 —
Apr 20, 2026 381 —
Apr 19, 2026 368 —
Apr 18, 2026 379 —
Apr 17, 2026 392 —
Apr 16, 2026 393 —
Apr 15, 2026 385 —
Apr 14, 2026 378 —
Apr 13, 2026 351 —
Apr 12, 2026 351 —
Apr 11, 2026 346 —
Apr 10, 2026 339 —
Apr 9, 2026 350 —
Apr 8, 2026 375 —
Apr 7, 2026 371 —
Apr 6, 2026 333 —
Apr 5, 2026 325 —

Station Information

USGS Site No
11074000
State
CA
County
Riverside County
Coordinates
33.8833, -117.6453
Drainage Area
2,258 mi²
Datum (ft)
451.6
HUC Code
18070203
View on USGS NWIS →

Recent Extremes

Max discharge
814 cfs
Jan 6, 2026
Min discharge
64 cfs
Jul 22, 2025

Computed from the local daily-values archive.

Nearby Gauges

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