iOS and Environmentalism
If you use the weather app on iOS 17 the weather app provides you with information about average temperature and average precipitation. It tells you how different the temperature and rainfall are, compared to average. Today, for example, I see that the temperature is 4°c warmer than the average. It tells me that usually the temperature is 17°c and that the current outside air temperature is 21°c.
For 25 September the normal temperature range is 5° to 21°, and the average high is 17°, today’s high temperature is 21°.