If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Bridgeport: The hottest months are usually July and August, with an average temperature of 15°C, while the coldest months are February and December, with an average of -3°C. The snowiest months in Bridgeport are March, February, January and April, with each month seeing an average of 92 cm of snowfall.