How you can tell the temperature outside with a cricket

I'm assuming Fahrenheit, because 37 degrees Celsius would be hellishly hot.

Sheldon says otherwise.

Is this just a ploy to make me sit around counting cricket chirps...?

Or add 39 to the number of chirps cicadas make every 15 seconds (according to Dandelion Wine by Ray Bradbury)

Who the hell figured this out?

how does a cricket chirp -40 times?

I feel like this is one of those fake wtf fun facts

So the temperature can't go below 37 degrees?

What if there's no space between the chirps? :| Cause the one outside my window is going too fast for me to distinguish between one chirp..