How is temperature change for the last six hours reported in METAR format?

In METAR reports, temperature change for the last six hours is indicated using specific numeric values. This allows meteorologists and aviation personnel to assess how temperatures have fluctuated over time, which can be critical for flight operations, safety, and weather forecasting. When reading METAR reports, the temperature is presented in degrees Celsius, and any significant changes during the specified period are reflected in numeric values that indicate how much the temperature has increased or decreased.

This direct approach of providing specific numeric values is essential for precise understanding and interpretation of temperature trends, as it conveys the necessary information without ambiguity or reliance on other systems. Understanding this method of reporting helps users quickly gauge the current conditions based on recent temperature trends.