Torrington's reading looks wrong, and this site says so rather than hide it
Torrington's satellite reading came back at exactly zero, which is not a real measurement for a city of 35,673 people, it means the sample point most likely missed the lit part of town, landing on open water, a shadowed hillside, or just a bad coordinate. Real cities this size do not read true zero.
This is flagged instead of shown as a normal result because reporting it as "Torrington's dark sky" would be reporting a data error as a fact, see the data quality guide for how this gets checked.
The nearest reliable reading to Torrington
Bristol, CT is about 14 miles from Torrington and has a trustworthy reading: suburban band. It's the closest usable stand-in until Torrington's own figure is corrected.
Because Torrington's own coordinate is what produced the bad reading, that distance figure is itself approximate, not a confirmed measurement.
Torrington against the rest of the dataset
Torrington, CT has a population of about 35,673, one of 3,206 US cities in this dataset, 3,187 of which have a usable brightness reading today.