Why does the weather on iphone6 show 70.80 degrees?

Because it shows "Fahrenheit", you can change the days to "Celsius" in the mobile phone software "Weather".

Fahrenheit (F): The unit of measurement of temperature.

Fahrenheit was named after its inventor, Gabriel D. Fahrenheit (Warren Hite 168 1- 1736). When the atmospheric pressure is1.01x10.5 Pa, the freezing point of water is 32°F and the boiling point is 22. 17 14 years, he found that liquid metal mercury was more suitable for making thermometers than alcohol. He invented the glass mercury thermometer with mercury as the temperature measuring medium. The temperature of the mixture of ammonium chloride and ice water is chosen as the zero degree of thermometer, and the human body temperature is 100 degrees. Mercury thermometer is divided into 100 parts according to the volume expansion distance of mercury from 0 degree to 100 degree.

Fahrenheit scale is one of the empirical scales. In the daily life of Americans, this temperature scale is often used, which is represented by the letter "F".

For example, the freezing point of water is 32℉ and the boiling point is 2 12℉.

Thermometers usually have two scales: Celsius (℃) and Fahrenheit (℃).

Fahrenheit scale is one of the empirical scales.