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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  2026-06-10
1990-10-01  2026-06-10
2007-10-01  2026-06-10
2019-08-02  2026-06-10
2019-08-02  2026-06-10
2019-08-02  2026-06-10
2019-08-02  2026-06-10
2023-06-10  2026-06-10
2019-08-02  2026-06-10
2020-01-31  2026-06-10







 (7)
 
  -- or --

 

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

Temperature, water, degrees Celsius
Most recent instantaneous value: 20.8 06-10-2026   05:00 EDT
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Discharge, cubic feet per second
Most recent instantaneous value: 11500 06-10-2026   05:30 EDT
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Daily discharge, cubic feet per second -- statistics for Jun 10 based on 97 water years of record more
Min
(1963)		 25th
percen-
tile		 Most Recent
Instantaneous
Value Jun 10		 Median Mean 75th
percen-
tile		 Max
(1931)
4040 8290 11500 12500 15100 17400 57000

Gage height, feet
Most recent instantaneous value: 8.74 06-10-2026   05:30 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius
Most recent instantaneous value: 150 06-10-2026   05:00 EDT
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Dissolved oxygen, water, unfiltered, milligrams per liter
Most recent instantaneous value: 8.2 06-10-2026   05:00 EDT
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Dissolved oxygen, water, unfiltered, percent of saturation
Most recent instantaneous value: 92 06-10-2026   05:00 EDT
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pH, water, unfiltered, field, standard units
Most recent instantaneous value: 7.4 06-10-2026   05:00 EDT
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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: 34.47 06-10-2026   05:00 EDT
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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: 2.4 06-10-2026   05:00 EDT
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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen, Nitrate Sensor
Most recent instantaneous value: 0.21 06-10-2026   05:00 EDT
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