The Thermal Measurer is a Science structure. It is used to approximate current ambient temperature. It can measure temperatures in a range from 0 to 35 degrees (actual temperature can go outside of this range). The gauge goes up as temperature increases (signifying Summer's approach), and goes down as the temperature falls (signifying Winter's approach). During the winter, it turns blue.

Farm crops don't grow below 5 degrees, but grow twice as fast above 28 degrees.