This laser disdrometer measures precipitation as it passes through a fan-shaped laser beam as part of the ARM West Antarctic Radiation Experiment. Credit: U.S. Department of Energy Atmospheric Radiation Measurement (ARM) user facility.

By Stephen Luntz, 08 November 2019
IFLScience.com

"We're familiar with drizzle as a process that takes place in warm temperatures," Dr Israel Silber of Penn State University said in a statement. "At lower temperatures, processes like ice formation and growth make the probability for drizzle production significantly lower.

Read the full article: 
Rain, Not Snow, Has Been Recorded Far Below Freezing Point In Antarctica