Does a cricket chirp more when it is hot or cold?

The crickets does in fact chirp more in hotter weather than in cold weather.
Crickets chirp a lot when is hot. They chirp few when is cold.

Answer:

The relation between the crickets chirping and temperature is well known. Bearing in mind that crickets seem to be on the Fahrenheit scale:

• Count the number of chirps the cricket makes in 1 minute (60 seconds)
• Subtract 40 from this number.
• Divide the result by 4
• Add 50.

The result of this calculation is close to the temperature of the environment the cricket is in.

As an example, if the cricket chirps 120 times in one minute then the temperature is about 50 + (120 - 40)/4 = 70o F.