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Vermont Winter Weather: How 1 Inch of Water Can Become 20 Inches of Snow
Burlington, VT – As Vermont approaches the heart of winter, residents from Burlington to Rutland may notice a surprising difference in snowfall forecasts. Two communities can receive nearly identical
By Marcus Hale · 2026-11-10T07:31:20.023Z
Burlington, VT – As Vermont approaches the heart of winter, residents from Burlington to Rutland may notice a surprising difference in snowfall forecasts. Two communities can receive nearly identical amounts of moisture from the same storm but end up with dramatically different snow accumulations. Under the right atmospheric conditions, just 1 inch of liquid precipitation can produce as much as 20 inches of snow.
The explanation involves a measurement known as the snow to liquid ratio, which meteorologists use to estimate how much snow will accumulate from a given amount of precipitation.
Why One Inch of Moisture Can Produce 20 Inches of Snow
A traditional forecasting guideline uses a 10 to 1 ratio, meaning 1 inch of liquid water produces approximately 10 inches of snow.
However, actual snowfall ratios can vary significantly.
Heavy, wet snow may have a ratio near 5 to 1, producing only 5 inches from 1 inch of liquid precipitation.
Colder, fluffier snow can sometimes reach a 20 to 1 ratio, producing approximately 20 inches from the same amount of moisture.
Burlington and Rutland: Why Snowfall Can Differ
Burlington's location near Lake Champlain can influence local temperatures and snowfall characteristics during winter storms.
Rutland, situated near the Green Mountains, can experience different atmospheric conditions as weather systems move across Vermont.
Higher elevations may experience colder temperatures and lighter snow, while lower valleys sometimes receive denser, wetter precipitation.
Wind also plays an important role.
Strong winds can fracture snowflakes and compact accumulated snow, reducing the depth measured on the ground.
What Vermont Residents Should Know
Wet, heavy snow can place additional stress on trees, power lines and rooftops.
Lighter, fluffier snow may accumulate more deeply while containing less liquid water per inch.
These differences can affect snow removal, travel conditions and how quickly roads become covered.
Understanding snow ratios helps explain why forecasts sometimes change even when expected precipitation amounts remain similar.
For Vermont residents, snowfall depth depends on more than how much moisture a storm brings. Temperature, wind and cloud conditions can dramatically change the final accumulation.