noun
1.
the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years.
2.
a region or area characterized by a given climate:
to move to a warm climate.
3.
the prevailing attitudes, standards, or environmental conditions of a group, period, or place:
a climate of political unrest.
There are three types of forest.
Tropical rainforest
Broad leaf deciduous
Coniferous pine forest
all require ample precipitation, less wet areas tend to be grasslands .
From rainforest to temperate, to cold (Siberian larch).
What they all have in common is some rain.