the winter months when temperatures are cold, (at or close to 0º
Celcius) snow will fall from clouds instead of rain. Snow starts off
in the same way as rain, with tiny droplets of water joining together
in clouds until they are too heavy. However, when they fall it is
important that the air is freezing for there to be snow. Otherwise
the snowflakes will melt and become sleet or rain before they reach
the ground. Every snowflake that falls from clouds is different, made
from ice crystals and with 6 sides.
cannot be measured in the same way as rain, as a normal rain gauge
may get blocked. Instead, the amount of snowfall is measured by inserting
a ruler into a layer of snow that is flat and has not been drifted
by the wind.