St. Johns River at Jacksonville, FL

USGS Site No: 02246500St. Johns River • Duval County, FL

St. Johns River at Jacksonville, FL on the St. Johns River is currently at -140,000 cfs (Very Low — 111th percentile for this date) . Gage height: 11.80 ft. This station is at or above flood stage.

Reading from

-140,000
CFS Discharge
11.80
Gage Height (ft)
Very Low
Flow Condition
FLOOD
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 -12,600 Today: -140,000 cfs
25th Low threshold -3,510
50th (Median) Normal (median) 3,480
75th High threshold 10,700
95th Very High threshold 26,100

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.

48k 24k 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 6,850 10.77
May 27, 2026 6,580 10.92
May 26, 2026 6,680 11.10
May 25, 2026 11.17
May 24, 2026 1,020 11.22
May 23, 2026 2,300 11.19
May 22, 2026 11.20
May 21, 2026 15,700 11.26
May 20, 2026 9,700 11.32
May 19, 2026 8,980 11.31
May 18, 2026 11,000 11.27
May 17, 2026 14,700 11.36
May 16, 2026 12,400 11.46
May 15, 2026 -8,430 11.48
Apr 21, 2026 7,590 11.30
Apr 20, 2026 -21,000 11.25
Apr 19, 2026 520 10.89
Apr 18, 2026 3,820 10.88
Apr 17, 2026 9,550 10.74
Apr 16, 2026 9,520 10.85
Apr 15, 2026 5,440 10.95
Apr 14, 2026 -2,020 10.98
Apr 13, 2026 -2,760 11.02
Apr 12, 2026 822 11.15
Apr 11, 2026 14,600 11.48
Apr 10, 2026 -3,170 11.90
Apr 9, 2026 -15,200 12.10
Apr 8, 2026 -74,500 11.95
Apr 7, 2026 -60,000 11.44
Apr 6, 2026 -36,300 10.73

Station Information

USGS Site No
02246500
State
FL
County
Duval County
Coordinates
30.3225, -81.6654
Drainage Area
8,850 mi²
HUC Code
03080103
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
1.0 ft
Flood Stage
1.5 ft
Moderate Flood
2.0 ft
Major Flood
3.0 ft

Currently 10.30 ft above flood stage.

Recent Extremes

Max discharge
41,400 cfs
Oct 13, 2025
Min discharge
-74,500 cfs
Apr 8, 2026
Days at flood stage
377

Computed from the local daily-values archive.