How high is the Klamath River below Iron Gate Dam CA right now?

The Klamath River below Iron Gate Dam CA is currently flowing at 1,380 cubic feet per second with a gage height of 2.47 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Klamath River below Iron Gate Dam CA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 66th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Klamath River below Iron Gate Dam CA on June 11?

The long-term median discharge for this date is 1,060 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 715 to 2,750 cfs.

Where is the Klamath River below Iron Gate Dam CA stream gauge located?

The Klamath River below Iron Gate Dam CA stream gauge is operated by the USGS in Siskiyou County, CA on the Klamath River. USGS site number 11516530 (coordinates 41.9279, -122.4442).

Klamath River below Iron Gate Dam CA

USGS Site No: 11516530 • Klamath River • Siskiyou County, CA

Klamath River below Iron Gate Dam CA on the Klamath River is currently at 1,380 cfs (Normal — 66th percentile for this date) . Gage height: 2.47 ft.

Reading from 1 week ago

Downstream on Klamath River ↓

Klamath River near Seiad Valley CA

1,380

CFS Discharge

2.47

Gage Height (ft)

Normal

Flow Condition

N/A

Flood Status

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	715
25th	Low threshold	752
50th (Median)	Normal (median)	1,060
75th	High threshold	1,550	Today: 1,380 cfs
95th	Very High threshold	2,750

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.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	1,380	—
May 27, 2026	1,350	—
May 26, 2026	1,380	—
May 25, 2026	1,390	—
May 24, 2026	1,390	—
May 23, 2026	1,380	—
May 22, 2026	1,390	—
May 21, 2026	1,380	—
May 20, 2026	1,420	—
May 19, 2026	1,420	—
May 18, 2026	1,450	—
May 17, 2026	1,460	—
May 16, 2026	1,450	—
May 15, 2026	1,450	—
Apr 20, 2026	1,360	—
Apr 19, 2026	1,370	—
Apr 18, 2026	1,370	—
Apr 17, 2026	1,380	—
Apr 16, 2026	1,390	—
Apr 15, 2026	1,400	—
Apr 14, 2026	1,400	—
Apr 13, 2026	1,410	—
Apr 12, 2026	1,410	—
Apr 11, 2026	1,410	—
Apr 10, 2026	1,420	—
Apr 9, 2026	1,400	—
Apr 8, 2026	1,380	—
Apr 7, 2026	1,350	—
Apr 6, 2026	1,330	—
Apr 5, 2026	1,330	—

Station Information

USGS Site No: 11516530
State: CA
County: Siskiyou County
Coordinates: 41.9279, -122.4442
Drainage Area: 4,630 mi²
Datum (ft): 2,165.6
HUC Code: 18010206

View on USGS NWIS →

Recent Extremes

Max discharge: 4,620 cfs

Feb 21, 2026
Min discharge: 928 cfs

Jul 8, 2025

Computed from the local daily-values archive.

Nearby Gauges

Shasta River near Yreka CA
10.6 mi · 165 cfs

High
Shasta River near Montague CA
15.9 mi · 135 cfs

High
East Fork Ashland Creek Near Ashland, OR
20.7 mi · 5 cfs

Low
West Fork Ashland Creek Near Ashland, OR
20.7 mi · 5 cfs

Low
Klamath River below John C.boyle Pwrplnt, near Keno,or
21.9 mi · 1,210 cfs

Normal