The climate of an area
Is base on

Usually their long term weather patterns, such as precipitation, wind speeds, etc.

Explanation:

The two most important factors in the climate of an area are temperature and precipitation. The yearly average temperature of the area is obviously important, but the yearly range in temperature is also important. Some areas have a much larger range between highest and lowest temperature than other areas.

ucd e e. rr. t t t t t t. to