I did some of the same things when I came in to our Pack. Previously, our pack shut down after March. After our Tiger year I started a spring/summer program of two events per month. April, we had belt loop round up. May, we had Mother's day project. June was father's day project and council summer events. July, was free astronomy and council camp. August was skating or bowling and picnic. We would only get about 5 kids to show up but for those kids they earned the Summer Time Achievement Award. Hopefully, it will continue now that our son has crossed over.
First thing I look for when planning events is free stuff; we have a science center that does a few free things each month. Then, I look for things that don't cost too much, skating or bowling. I tried to have one free event and one event that cost a little each month. Our final event was an end of summer picnic. Make a summer time passport that can get checked off to earn the Summer Time Award.