Climate is known as an area's long-term weather conditions patterns. The simplest way to describe climate is to consider average temperature and precipitation over time. Other useful constituents for describing climate include the type and the timing of precipitation, amount of sunshine, average wind speeds and directions, number of days above freezing, weather extremes, and local geography. As elevation increases, the average temperature decreases. Above a specific elevation, low temps make it impossible for trees to grow, as seen here on Washington's Mount Rainier.
While it's fairly easy to describe a location's climate by examining weather data, a greater challenge is evaluating why the climate of one place differs from that of another. To do so, you must consider all the factors that work together to determine climate.