The past couple of nights I've noticed quite a few chirps coming from crickets outside. It's actually pretty peaceful to listen to...when you're not trying to fall asleep. But did you know you can use the chirp of a cricket to get a rough estimate of what the temperature is outside? It's true!
All you have to do is count the number of chirps you hear in approximately 14 seconds and then add 40 to that number. The total amount will be close to what the current temperature is outside. Crickets chirp faster when it's warm and slower when it's cooler.
So give it a try! And then compare your number to the actual temperature to see how close you are!