Connecticut River

Streamflow Hydrology Weather

Connecticut River Levels

September 27 2023

142,213 ACRE-FT

Discharge Volume Today
-20838.0 cfs (-22.52%) since yesterday
146.44% of Normal 10 Streamgauges

Total streamflow across the Connecticut River was last observed at 71,699 cfs, and is expected to yield approximately 142,213 acre-ft of water today; about 146% of normal. River levels are high. Average streamflow for this time of year is 48,963 cfs, with recent peaks last observed on 2014-04-17 when daily discharge volume was observed at 548,550 cfs.

Maximum discharge along the river is currently at the Connecticut R At Middle Haddam reporting a streamflow rate of 32,200 cfs. However, the streamgauge with the highest stage along the river is the Connecticut River At North Walpole with a gauge stage of 9.2 ft. This river is monitored from 10 different streamgauging stations along the Connecticut River, the highest being situated at an altitude of 1,211 ft, the Connecticut R Below Indian Stream Nr Pittsburg.

Last Updated 2023-09-27
Streamflow 71,699.0 cfs
Percent of Normal 146.44%
Maximum 548,550.0 cfs

About the connecticut river

The Connecticut River is the longest river in New England, stretching for 410 miles from its source in New Hampshire to its mouth at Long Island Sound. The river played a significant role in the industrial development of the region, serving as a major transportation route for goods and people. Today, the river is an important source of hydroelectric power, with several large dams and reservoirs along its length, including the Moore, Wilder, and Vernon dams. The river also supports a range of recreational activities, such as fishing, boating, and hiking, and provides water for agriculture in the Connecticut River Valley. Despite decades of pollution, the river has seen significant improvements in water quality and biodiversity in recent years due to restoration efforts.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Connecticut R Below Indian Stream Nr Pittsburg
USGS 01129200
579 cfs 3.24 ft -3.02
Connecticut River At North Stratford
USGS 01129500
1180 cfs 4.09 ft -7.09
Connecticut River Near Dalton
USGS 01131500
2000 cfs 8.94 ft -6.54
Connecticut River At Wells River
USGS 01138500
2660 cfs 3.17 ft 9.02
Connecticut River At West Lebanon
USGS 01144500
6370 cfs 6.85 ft -1.09
Connecticut River At North Walpole
USGS 01154500
6580 cfs 9.2 ft 93.53
Connecticut River At Montague City
USGS 01170500
2330 cfs 6.65 ft -73.67
Connecticut R At Interstate 391 Bridge At Holyoke
USGS 01172010
7800 cfs 6.78 ft -35
Connecticut River At Thompsonville
USGS 01184000
10000 cfs 8.73 ft -37.5
Connecticut R At Middle Haddam
USGS 01193050
32200 cfs 2.63 ft -18.27

Peak Annual Discharge

Connecticut River Maximum Total Discharge

Seasonal Comparison

Connecticut River Year Over Year Discharge

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