The long-term average of weather conditions in a region is called the

• A. Weather
• B. Atmosphere
• C. Climate
• D. Conditions

Answer: (C)

Understanding the difference between weather and climate. Weather is the day-to-day state of the atmosphere in a place—temperature, precipitation, wind—over short timeframes. Climate is the long-term pattern of these conditions, described by averages and variability over many years (typically about 30 years). Therefore, the long-term average of weather conditions in a region is climate.

For example, a region might have hot summers with regular monsoon rain, but climate is what those average temperatures and rainfall look like when you average across decades, including typical ranges and seasonal shifts.

Weather describes current or short-run conditions, the atmosphere is the layer of gases surrounding Earth, and “conditions” is too vague without the long-term perspective. Climate captures that sustained, averaged picture.