Crickets can be used in a general way to determine the outside temperature. As a cold-blooded animal, the cricket's body temperature fluctuates according to the external temperature. The amount of chirps produced as a result can be used to roughly guess the temperature in both Fahrenheit and Celsius.

This is also known as Dolbear's law.[1]

## Doing the experiement

Head outside and find yourself some chirping crickets. Settle yourself comfortably and get ready to count.

• For Fahrenheit: Count the number of cricket chirps you hear, over a period of 14 seconds. Add the number of chirps counted to the number 40. This will give you the approximate temperature in degrees Fahrenheit.
• For Celsius: Count the number of cricket chirps you hear, over a period of 14 seconds. Add that amount to the number 8. Multiply by 5 and divide by 9. The final result will be an approximate of the temperature in degrees Celsius.
• Alternatively, for Celsius, listen for 25 seconds, divide by 3, then add 4.[2]

The type of cricket listened to may affect the outcome.

## Sources and citations

Authors Felicity CC-BY-SA-3.0 English (en) 0 subpages, 1 pages link here Crickets as themometers 157 page views January 30, 2016 by Felicity June 19, 2023 by Irene Delgado Felicity (2016–2023). "Crickets as thermometers". Appropedia. Retrieved March 5, 2024. basic, semantic, html, files, more
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