Thanks to some feedback, I cleaned up this map and added a few additional reports.

There are still some gaps in Litchfield County, a report of 4.0 inches in Torrington made more sense based off of observations and radar imagery for that area. You can see how the higher amounts were generally confined to the higher terrain, with lower amounts in the Conn. River and Shetucket River valleys.

Below is a color, contoured map I put together: