Columbia Magazine

Thermometer in a flower

2020-10-13 - Jefferson Co., KY - Photo by Pen
An immature snowy tree cricket, checking out a yellow flower along the banks of Floyd's Fork.

In the late 1800s, Amos Dolbear counted cricket chirps and formulated a way to estimate the ambient temperature within a degree or so based on the frequency of the chirps. It is thought that he based his research on the snowy tree cricket.

Dolbear's math was a little more complicated, but according to The Old Farmer's Almanac, you can "count the number of chirps in 14 seconds, then add 40 to get the temperature" in Fahrenheit.
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