The only thing I know is that this is the coolest spring I think I have ever seen in this area, and I have lived in this area a long time. It should be about 90+ degrees right now, and it is a lot cooler. The official beginning of summer is only a few days away. Not that I mind this cool spring but it is very unusual. Supposedly towards the end of this week it will be getting hotter and more normal for around here.
So my guess is that the fewer sunspots means cooler weather on Earth and the Sun is the big factor for temperature and weather on the Earth.
I don't need a weatherman to tell me that this is strange for this area. I know from personal experience that normally you need your swamp cooler going strong about the start of June. Well, we are halfway through June. I would say that temperatures are 10 to 20 degrees below normal and not just for a few days, but for much of the spring. It would not be unusual if it was just for a few days. It has been weeks. Heck, even months.
Summer here is usually 90 to 100 degrees. We will probably still have some hot days in the summer but right now my guess is 80 to 90 degree temperatures for the summer. Summer is the one season that is usually fairly predictable around here-hot and dry.