How to measure temperature

The thermometer measures the air temperature at a certain location. The thermometer at this station measures temperatures from -35 to 55 degrees Celsius (°C) (see example below).

When the temperature is negative (below 0°) it is freezing. The scale on the thermometer is divided into intervals of 1°C (short marks) and 5°C (long marks). The mark closest to the pointer is the current temperature. In the example above the temperature is 20°C.