Water temp???

[ApS]

Originally Posted by SIKSUKR

They didn't have thermometers in 1822 but I'm probably wrong and mid August would be more like it.
Trying to find historical average lake temps.Help

I've got a model of Galileo's "thermometer"—invented in 1593. Not a mercury thermometer, I feared it might freeze and break in our unheated cottage last winter. It came through OK. It uses mineral spirits as a suspension medium. Some "Galileo thermometers" sold today don't recommend freezing temperatures.