What was the maximum temperature recorded in the last 24 hours?

To determine the maximum temperature recorded in the last 24 hours in METAR reports, it's essential to know that this information is typically included in the section of the report dedicated to recent weather observations. The correct choice of 5.6°C indicates that this was the highest temperature noted during that timeframe, identifying it as a significant weather observation.

The other choices represent various temperatures but do not indicate the maximum. For precise weather reporting, understanding that the maximum temperature can fluctuate based on location conditions and time of year is crucial. Therefore, recognizing 5.6°C as the high point within the specified period reflects an accurate reading of the observed weather data.