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USGS 01184000 CONNECTICUT RIVER AT THOMPSONVILLE, CT

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
Station operated in cooperation with the Connecticut Department of Energy & Environmental Protection.
Boating safety tips
This station managed by the East Hartford CT Field Office.

Available Parameters Available Period
  
2019-08-02  2026-10-15
1990-10-01  2026-10-15
2007-10-01  2026-10-15
2019-08-02  2026-10-15
2019-08-02  2026-10-15
2019-08-02  2026-10-15
2019-08-02  2026-10-15
2023-10-16  2026-10-15
2019-08-02  2026-10-15
2020-01-31  2026-10-15







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Temperature, water, degrees Celsius
Most recent instantaneous value: 15.8 10-15-2026   07:00 EDT
Graph of Temperature, water, degrees Celsius

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Discharge, cubic feet per second
Most recent instantaneous value: 12800 10-15-2026   07:30 EDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Oct 15 based on 98 water years of record more
Min
(1985)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Most Recent
Instantaneous
Value Oct 15		 Max
(2006)
2240 4870 7010 9790 10500 12800 62000

Gage height, feet
Most recent instantaneous value: 8.89 10-15-2026   07:30 EDT
Graph of Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 188 10-15-2026   07:00 EDT
Graph of Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 9.1 10-15-2026   07:00 EDT
Graph of Dissolved oxygen, water, unfiltered, milligrams per liter

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Dissolved oxygen, water, unfiltered, percent of saturation
Most recent instantaneous value: 91 10-15-2026   07:00 EDT
Graph of Dissolved oxygen, water, unfiltered, percent of saturation

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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.2 10-15-2026   07:00 EDT
Graph of pH, water, unfiltered, field, standard units

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Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)
Most recent instantaneous value: 36.48 10-15-2026   07:00 EDT
Graph of Dissolved organic matter fluorescence (fDOM), water, in situ, concentration estimated from reference material, micrograms per liter as quinine sulfate equivalents (QSE)

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)
Most recent instantaneous value: 3.2 10-15-2026   07:00 EDT
Graph of Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, Nitrate Sensor
 
-- Data temporarily unavailable for the time period specified --