I looked up a few temperature scales to use for puzzles involving “slow” thermometers like these, and there are some odd ones. It’s nice to live in a world in which such things are settled, in which we have two settled temperature scales oriented around humans, and easy math to convert between them. Team Fahrenheit and Team Celsius don’t apply here, though. Here, temperatures rise very, very slowly, or sometimes not at all.
Rules:
Normal Sudoku rules apply.
Digits on thermometers either increase or remain the same from bulb to tip. Coloring is cosmetic.
Estimated difficulty: 1 out of 5
Solve on SudokuPad