Fenton River at Mansfield, CT

USGS Site No: 01121330Fenton River • Capitol Planning Region, CT

Fenton River at Mansfield, CT on the Fenton River is currently at 21 cfs (Normal — 69th percentile for this date) . Gage height: 3.51 ft.

Reading from

21
CFS Discharge
3.51
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 10
25th Low threshold 11
50th (Median) Normal (median) 16
75th High threshold 23 Today: 21 cfs
95th Very High threshold 171

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.

669 334 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 26
May 27, 2026 32
May 26, 2026 44
May 25, 2026 55
May 24, 2026 39
May 23, 2026 21
May 22, 2026 23
May 21, 2026 25
May 20, 2026 29
May 19, 2026 29
May 18, 2026 32
May 17, 2026 39
May 16, 2026 50
May 15, 2026 83
Apr 21, 2026 25
Apr 20, 2026 27
Apr 19, 2026 29
Apr 18, 2026 28
Apr 17, 2026 33
Apr 16, 2026 40
Apr 15, 2026 26
Apr 14, 2026 25
Apr 13, 2026 25
Apr 12, 2026 25
Apr 11, 2026 27
Apr 10, 2026 28
Apr 9, 2026 28
Apr 8, 2026 30
Apr 7, 2026 32
Apr 6, 2026 37

Station Information

USGS Site No
01121330
State
CT
Coordinates
41.8332, -72.2428
Drainage Area
18 mi²
Datum (ft)
317.4
HUC Code
011000020204
View on USGS NWIS →

Recent Extremes

Max discharge
326 cfs
Mar 17, 2026
Min discharge
2 cfs
Sep 23, 2025

Computed from the local daily-values archive.