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.
- The reading from the Thermal Measurer goes down in the night due to the lack of heat from the sun. It goes back up in the daytime.
- It was added in A Winter's Tale update.
- Before the release of the Reign of Giants DLC, the Thermal Measurer was called the Winterometer.