St. Johns River at Jacksonville, FL
USGS Site No: 02246500 • St. 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
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.
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
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 cfsOct 13, 2025
- Min discharge
-
-74,500 cfsApr 8, 2026
- Days at flood stage
- 377
Computed from the local daily-values archive.
Nearby Gauges
-
Cedar River at San Juan Avenue at Jacksonville, FLNormal5.3 mi · 14 cfs
-
Pottsburg Creek near South Jacksonville, Fla.Normal6.0 mi · 5 cfs
-
Pottsburg Crk at Us90 near South. Jacksonville, FLVery Low6.2 mi · -264 cfs
-
Trout River near Jacksonville FlaVery Low6.8 mi · -3,990 cfs
-
Broward River below Biscayne Blvd near Jacksonville, FLVery High8.4 mi · 550 cfs