Scientifically speaking, it is quieter after a fresh snowfall. A snowflake’s six-sided crystalline structure creates small spaces… that absorb sound waves. Because of this unique shape, snow dampens noise much the same way foam panels in a recording studio do. And the more accumulation you have, the greater the effect. In fact, some studies show up to a 60 percent reduction in sound with just a few inches.
Hannah Anderson and Nathan Anderson, (B&H Books, 2022).