In the USA they have held their federal election on the first Tuesday of the month since 1872.
November was chosen because it was the between harvesting crops and when spring planting needed to begin.
Tuesday was chosen so that people could travel overnight from Monday to a polling place. They couldn't travel on Sunday as that was the day of worship.
The days of being an agrarian nation are long gone, and Sunday as a day of worship is a fading memory (even for god-fearing Americans), but the hayseed and the hymn book linger.