Assuming the surface temperature is less than or equal to 32F:

Warm Layer Max Temperature

Precipitation Type
with ice introduced

Precipitation Type
without ice introduced


Snow Freezing Rain

1C to 3C

Sleet(1C) to Mix(3C) Freezing Rain

> 3C

Freezing Rain/Drizzle Freezing Rain/Drizzle is the U.S. government's official web portal to all federal, state and local government web resources and services.