According to Nolan Doesken, assistant climatologist for the state of Colorado and author of "The Snow Booklet", a snow flake can fall anywhere from 9 miles-per-hour to 1.5 miles-per-hour.
"The really rimed crystals can buzz right along like a blur," he says. "A nice little stellar crystal, the favorite magical snowflake with the arms that everybody draws, will float down more gently," at a mere 1.5 mph.
See related links for the full article and more about the science behind snow.
Well, Rain can fall from 5 to 18 miles per hour, so sleet should be something like that.
'Sleet' or 'hail'.
depends how cold the climate and temperature of the region. Generally it will fall as rain, but at temperatures close to freezing will fall as sleet, and freezing or below..snow.
hail,rain,and snow
Precipitation is rain, snow, sleet or hail.
Rain(drops of water that fall from a cloud and have a diameter of at least 0.5 millimeter) and snow (precipitation in the form of ice crystals or, more often, aggregates of ice crystals). Other forms include sleet (falling small particles of ice that are clear to translucent), glaze (formed when supercooled raindrops turn to ice on colliding with solid objects), hail (hard, rounded pellets or irregular lumps of ice produced in large cumulonimbus clouds), and rime (a deposit of ice crystals formed by the freezing of supercooled fog or cloud droplets on objects whose surface temperature is below freezing).
Sleet can form when raindrops freeze into tiny particles of ice as they fall through the air.
sleet
Precipitation is;- Rain Sleet Snow Hail
It becomes sleet...
This is frozen rain, which can be part of an ice storm. (Sleet is rain that freezes into ice pellets as it falls.)
sleet
DETERMINE
percipitation
There are several types, including nimbostratus and different types of cumulus.
Rain, hail, snow and sleet can fall in most deserts.
The usual term is "sleet".
Sleet is heavier and worst then hail. Yes, and No! They are both frozen rain and they are both unpleasant. The main differences are the times of year they fall and the weather conditions that produce them.