Infrequent meeting
When I lived in Wisconsin I belonged to a few different amateur radio groups at one time or another. They each met with different frequency (as well as on different frequencies, yes) as they had different approaches or concerns.
The Wisconsin Valley Radio Association met almost monthly, on the first Tuesday of the month. They skipped December and January due to the holidays and perhaps the weather. The WVRA was active, or tried to be, in various things and would provide event communications when they could.
The Rib Mountain Repeater Association was purely a repeater group and had one business meeting each year to take care of whatever needed to be done formally.
The Tomahawk Repeater Association met quarterly, though they did testing (Volunteer Examiner) roughly monthly as I recall.
I dealt with the WVRA first, and after the nearly monthly meetings and then experiencing the VE activity of the TRA folks, the RMRA schedule seemed a bit odd. But the WVRA and RMRA coverage areas overlapped so it wasn't any big deal.
Tomorrow night I plan to go to a meeting of the Fairmont Amateur Radio Club. This is unusual, and not because I have been skipping meetings in all the time I've been in the area. It's unusual as there is a meeting to go to. The last recorded FARC meeting was in 1987. If I recall correctly, I hadn't even taken my novice exam in 1987.