Mo

In the U.S., December snowfall typically ranges from 0–2 inches in mild zones to 10–20+ inches in snowy regions, based on climate normals.

One pound of rock salt can melt 46 lb of ice at 30°F, but only about 9 lb at 20°F, so capacity depends on temperature.

For 4-wheel drive vehicles, plan on 6–8 inches of fresh snow; deeper drifts call for more ground clearance and true winter tires.

At a common 10:1 ratio, 50 inches of rain equals about 500 inches of snow; real values range from 250 to 2,500 inches based on snow density.

On average, one inch of water equals about 10 inches of snow, but the real-world range runs 5–30 inches depending on temperature and snow type.

In most storms, one hour of snow brings around 0.5 to 2 inches, while intense bands can drop 3 to 5 inches or more.

The South Pole averages about 20 cm of fresh snow a year—around 50 mm water equivalent—so it’s snowy underfoot but amazingly dry.

Most Arctic tundra areas receive 6–10 inches (15–25 cm) of precipitation a year, much of it as snow that lingers for most of the year.

Use 1–5% panel impact ratio or a 10:1 water-to-foam mix, then adjust for soil level and your lance.

There’s no set snowfall total for flight cancellations; snow rate, runway condition codes, visibility, and deicing capacity drive decisions.