We have a 5th season here in Maine- known affectionally as Mud Season.  It's the time of year that varies depending on the amount of snow and whether or not the ground frozen before the snow. Mud season is between winter and spring. Signs of approaching mud season are weight limit signs on roads. This means trucks over certain weights can not access roads that have been posted. This means if you are planning on a special delivery you may need to inquiry about the size of the truck making the delivery. I have had to meet trucks on approved roads and off load the delivery ontop my truck because the big truck couldn't go on my road. 
    Another sign of mud season is barriers in driveways and on the edge of lawns. This can mean that some folks will have to park at the end of the driveway and walk to their house. ( this also happens frequently during the winter). This year for the first time I have to put up a barrier in the driveway here- seems a new wet hole appeared for the first time and it was good one. I rely heavily on my york rake to get the driveaway back into space and couldn't manage without it. 
    Luckily, mud season is the shortest season here in Maine but it's certainly one that everyone has their own way of dealing with.