Can you hear cicadas sing all the summer?

I love hearing the cicadas. It always reminds me of my childhood, when summer was a million years long! There is one exception, though. I'm not sure if you get them in China (you probably do), but where I grew up, we got some horrid invasions of 17-year, 13-year and 7-year cicadas. Literally millions of these giant bugs would invade all at once and there would be a constant "ssssssss" sound outside, morning and night! This would go on for four weeks! It was awful! If you opened a window, they would fly in. You couldn't go outside without at least a few of them flying into you and clinging to your clothing. The sound was maddening, like a science fiction movie! They devastated young trees and made the larger trees very ugly by killing the tips of every branch when they laid their eggs. This was in Maryland, eastern United States. I now live in Virginia, 100 miles west of where I grew up. They don't seem to get them as bad here. We have the normal, yearly cicadas outside right now and they are a delight to hear. I've been told that they just don't get the massive invasions that we got in Maryland. I'm VERY glad to hear that, because I live in the mountains and there are hundreds of trees around!

I like 'em! But in Ohio they start getting loud in August. I don't think they sing all summer here. The thing I don't like about it is that it happens in August, and reminds me that summer is coming to and end...