Nivelmap
EN

Connecticut River at Hartford water level

Tidal gauge, Connecticut River, Connecticut, United States

Directions

Right now

Normal for mid-October

Water level

3.10ft Down 0.48 ft over the last 24 hours

0 13 25 38 Highest onrecord 37.60 ft Minor floodstage 16.00 ft

History

History
51015ftOct 16Oct 18Oct 20Oct 21Oct 23Minor flood stage51015ftOct 16Oct 20Oct 23Minor flood stage
51015ftSep 22Sep 29Oct 7Oct 15Oct 23Minor flood stage51015ftSep 22Oct 7Oct 23Minor flood stage
-01020ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage-01020ftOct 2025Apr 2026Oct 2026Minor flood stage
-01020ftJanMarMayJulSepNov2026-01020ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Forecast Minor flood stage

The forecast expects the river to rise to 5.10 ft by Wednesday, October 21 at 11:00 AM. Issued Tuesday, October 20 at 10:49 AM by NOAA National Weather Service.

What this means

The gauge at Connecticut River at Hartford reads 3.10 ft, a normal level for mid-October.

That puts it 0.15 ft below the median of 3.25 ft for mid-October, based on 20 years of readings. It is 12.90 ft below the flood stage of 16.00 ft. A year ago it stood at 2.35 ft (+0.75 ft).

The level is falling, down 0.48 ft over the past 24 hours. The forecast expects the river to rise to 5.10 ft by Wednesday, October 21 at 11:00 AM. Over the past 30 days it has moved between 1.73 ft and 4.53 ft.

Compared with 20 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3.25 ft0.15 ft below the median for this date
Normal for this date
1.64 ft – 5.88 ft8 years in 10 fall in this range (20 years of records)
Same day last year
2.35 ft+0.75 ft
Lowest and highest in 30 days
1.73 ft – 4.53 ft
Lowest and highest in 12 months
0.92 ft – 15.09 ft
Highest on record
37.60 ftMarch 21, 1936
Forecast peak
5.10 ftWednesday, October 21 at 11:00 AM

What happens at each level

32.00 ft
This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to the river mouth at Old Saybrook will experience significant flooding outside of levees and flood protection walls.
30.00 ft
This is a serious and life threatening flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Middletown, Haddam and Portland to Old Saybrook will experience significant flooding outside of levees and flood protection walls.
28.00 ft
This is a serious flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Towns from Windsor Locks and East Windsor south through Haddam and Portland will experience significant flooding outside of levees and flood protection walls. Further downstream through Cromwell, Middletown and further downstream this is a serious potentially life threatening flood.
26.00 ft
Moderate flooding will occur along a large reach of the river from Windsor Locks and East Windsor, south through Haddam and Portland. Many river roads will be closed and some localized evacuations may be required. Follow the directions of local emergency management officials. Further downstream significant flooding will continue to impact low lying homes and businesses from Wethersfield south through Middletown and Middle Haddam, downstream to the mouth of the river in Old Saybrook.
24.00 ft
Flooding affects some residential areas below Hartford through Rocky Hill. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Further downstream major river flooding will impact towns along the Connecticut River from Middletown and Portland downstream through Chester and Essex. Many roads near the river will be flooded. Some local evacuations may be needed.
23.00 ft
Flooding affects some residential areas below Hartford through Rocky Hill, including some roadways. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Know alternate routes for travel in your location should roads along the river become flooded and impassable. Further downstream flooding increases through Middletown and Portland to Old Saybrook. Some evacuations of low lying areas may be needed.
22.00 ft
Flooding affects some residential areas below Hartford through Rocky Hill, including some roadways. Upstream of Hartford, flooding is likely to affect Windsor Locks, East Windsor and Windsor. Should localized evacuations be necessary, act quickly. Further downstream flooding will likely result in the evacuation of low lying area along River Road in Cromwell and Meadow Road in Portland. Flooding increases from Middletown and Portland to the river mouth at Old Saybrook.
21.00 ft
Flooding is expected along the river in portions of Wethersfield, Glastonbury and Rocky Hill. The high waters and swift flows will disrupt some cross river ferry services. Upstream of Hartford flooding will continue to affect portions of Windsor. Immediate river roads may become impassable. Further downstream flooding will likely result in the evacuation of low lying areas along River Road in Cromwell and River Road in Portland. Flooding increases along the river from Middletown to Old Saybrook.
20.00 ft
Flooding is expected along the river in portions of Wethersfield, Glastonbury, Rocky Hill and Cromwell. The high waters and swift flows will disrupt some cross river ferry services. Upstream of Hartford, flooding will continue to affect portions of Windsor. Immediate river roads may become impassable in all of these communities. Further downstream flooding will continue to overspread sections of Portland, Middletown as well as Chester.
19.00 ft
Flooding of low lying areas below Hartford is expected, especially in areas that are outside of levee protection. Flooding also affects low lying areas upstream of Hartford, including a portion of Windsor where the Farmington River empties into the Connecticut River. Further downstream flooding closes most of Meadow Road, Route 17A, in Portland. Flooding impacts the Middletown Marina and Meadow Farms. In Cromwell, portions of River Road will be closed. Flooding continues along the river through Essex.
18.00 ft
Flooding of low lying areas below Hartford is expected, especially in areas that are outside of levee protection. Flooding also affects low lying areas upstream of Hartford, including a portion of Windsor where the Farmington River empties into the Connecticut River. Further downstream flooding is expected in low lying sections along the Connecticut River from Wethersfield and Glastonbury downstream through Cromwell, Middletown and Portland. Boating interests should prepare for swift river flows.
17.00 ft
Lowland flooding is expected along the Connecticut River from Hartford through Wethersfield and Glastonbury, primarily outside of levee protection. This will affect several riverside roadways as well as several park and recreational facilities. Further downstream flooding is expected in low lying sections along the Connecticut River from Wethersfield and Glastonbury downstream through Cromwell, Middletown and Portland.
3.10 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

RankLevelDate
137.60 ftMarch 21, 1936
235.40 ftSeptember 23, 1938
330.74 ftJune 1, 1984
430.60 ftAugust 20, 1955
529.30 ftMay 1, 1854
629.00 ftDecember 10, 1927
728.20 ftApril 21, 1862
827.60 ftApril 7, 1960
926.70 ftMarch 29, 1843
1026.40 ftApril 9, 1901

Weather at the gauge

No rain in the last 3 days.

20 Tue 66° 37° – Wind 12 mph
21 Wed 55° 41° – Wind 12 mph
22 Thu 64° 41° – Wind 10 mph
23 Fri 58° 43° – Wind 10 mph
24 Sat 60° 39° – Wind 5 mph
25 Sun 64° 43° – Wind 6 mph
26 Mon 70° 47° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:10 AM Sunset 06:02 PM Daylight 10 hr, 51 min Waxing gibbous 73%

Map

Other gauges on the Connecticut River

Gauge Level Compared with normal 24 hours Distance
Connecticut River at West LebanonRiver gauge, Connecticut River 4.96 ft Below flood stage ±0 131 mi
Connecticut River at North WalpoleRiver gauge, Connecticut River 7.07 ft Below flood stage +0.14 ft 95 mi
Connecticut River near NorthfieldRiver gauge, Connecticut River 4,690 cfs Low +2,740 cfs 64 mi
Connecticut River at Montague CityRiver gauge, Connecticut River 8.64 ft Below flood stage −0.90 ft 56 mi
Connecticut River at I-391 Bridge at HolyokeRiver gauge, Connecticut River 5.27 ft Below flood stage −1.50 ft 29 mi
Connecticut River at ThompsonvilleRiver gauge, Connecticut River 8.05 ft Low −0.52 ft 15 mi
Connecticut River at Middle HaddamTidal gauge, Connecticut River 3.51 ft Below flood stage +0.41 ft 17 mi
Connecticut River at EssexEstuary gauge, Connecticut River 3.28 ft Very high +0.52 ft 32 mi
Connecticut River at Old LymeEstuary gauge, Connecticut River 3.35 ft Very high +1.13 ft 36 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
North Branch Park River at HartfordRiver gauge, North Branch Park River 1.71 ft Normal −0.03 ft 2.3 mi
Hockanum River near East HartfordRiver gauge, Hockanum River 2.11 ft Normal −0.06 ft 4.2 mi
Farmington River at TariffvilleRiver gauge, Farmington River 1.46 ft Normal −0.13 ft 11 mi
Farmington River at UnionvilleRiver gauge, Farmington River 5.03 ft Normal −0.02 ft 11 mi
Broad Brook at Broad BrookRiver gauge, Broad Brook 0.51 ft Low ±0 12 mi
Stony Brook near West SuffieldRiver gauge, Stony Brook 4.2 cfs Normal −0.3 cfs 13 mi
Bunnell Brook near BurlingtonRiver gauge, Bunnell Brook 2.15 ft Normal ±0 15 mi
Quinnipiac River at SouthingtonRiver gauge, Quinnipiac River 3.15 ft Normal −0.01 ft 16 mi

Questions and answers

How does the Connecticut River at Hartford compare with last year?

It is 0.75 ft higher than on the same day last year, when the reading was 2.35 ft.

What is flood stage for the Connecticut River at Hartford?

The official flood stage is 16.00 ft. The level is currently 12.90 ft below it.

What is a normal level for the Connecticut River at Hartford in mid-October?

The median for mid-October is 3.25 ft. In 8 years out of 10 the reading falls between 1.64 ft and 5.88 ft, based on 20 years of records.

What is the water level of Connecticut River at Hartford today?

On Oct 20, 2026, 08:30 PM EDT, the water level was 3.10 ft. Down 0.48 ft over the last 24 hours.

Is Connecticut River at Hartford rising or falling?

Down 0.48 ft over the last 24 hours. Up 0.08 ft over the last 7 days.

Is the level of Connecticut River at Hartford normal?

Normal for mid-October. Compared with 20 years of daily readings for this time of year.

What is the highest water level ever recorded at Connecticut River at Hartford?

The highest level on record is 37.60 ft on March 21, 1936.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:01190070 (Agency page)
Coordinates
41.76909, -72.66755 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 3.10 ft 2026-10-21 00:30 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Connecticut River at Hartford (usgs:01190070). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/connecticut/connecticut-river-at-hartford

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.