Other dances of interest
The Norwich contras are 2nd Saturday (Northern Spy) and 4th Saturday (Cuckoo's Nest).
If that isn't enough to satisfy you, here are some other options:
Montpelier, VT, has a contra dance on the 1st, 3rd, and 5th Saturday each month.
The same hall also hosts another series, "Homegrown in the Tradition," that features
a more traditional program. Dances are held six or seven times a year.
Brattleboro, VT, has a contra dance twice a month on Sundays, usually the 2nd and 4th.
Looking for dances farther afield?
The Dance Gypsy is an excellent site for one-stop searching in New England and beyond.