What is the average temperature at which supercooled water droplets can exist before freezing?

Supercooled water droplets can exist at temperatures below freezing—specifically down to around -40°C in certain conditions. However, the average temperature at which supercooled water droplets remain stable before freezing is typically around 0°C. At this temperature, water droplets can remain in a liquid state despite being below the freezing point, due to the absence of nucleation sites needed for freezing to occur.

When temperatures drop further, presence of impurities and physical disturbances may still allow water to remain in a supercooled state. Many atmospheric processes involve supercooled water, particularly in clouds where temperatures can be well below 0°C while water droplets persist. Understanding this phenomenon is critical in meteorology, especially related to precipitation and weather formation.