About Thompsonville, CT

Thompsonville is a city of approximately 8,600 people in Connecticut, United States. Located in the Eastern Time Zone at 42°N latitude.

Across a typical year Thompsonville sees about 47 inches of precipitation and 52 inches of snow, with October the wettest month and February the driest. Temperatures range from January lows near 19°F up to July highs around 85°F, averaging 51°F annually — characteristic of a humid continental climate.