In METAR, what does "DZ" represent?

In METAR reports, "DZ" specifically refers to drizzle, which is characterized by very light rain consisting of small droplets. This is a crucial piece of information for pilots and meteorologists, as it indicates the presence of precipitation that could affect visibility and runway conditions, albeit in a minor way compared to heavier rain.

Understanding the symbols and codes used in METAR is essential for accurate weather assessments, and "DZ" is standardized to convey a specific type of light rain, differentiating it from other weather phenomena like fog, dust, or ice crystals, which have their own respective codes. This specificity ensures clear communication among aviators regarding current weather conditions.