I recently returned home to California from up a road trip with my family. April to early November is my comfortable ski season here in the Sac area (I don't own a drysuit but do use a full wetsuit for the few weeks at the beginning and end of the season). So on this road trip my family spent a day with my uncle from Spokane fishing on a little lake in the area. We drove past a number of lakes to get to this lake and so I asked my uncle how many lakes were around there.
He answered that there are 50 lakes in the area, including big ones like CDA and Pend O'reille. The lake we fished on was about a mile long, near glass the whole time we were there, available to the public, but only a couple fishing boats on it from around 10am-2pm when were there. As we were leaving, a SeaDoo and a stern drive boat started zipping around, but otherwise just fishing boats.
I started thinking this might be a nice area to live for a waterskier. However, when I talked to various locals about water sports, they all made it seem like the season is only two or three months long and otherwise too cold or stormy. Anyone know what the real ski season is in the Spokane area for someone who doesn't want to ski in a drysuit?