Which statement best defines climate compared to weather?

• A. The long-term average of weather over decades.
• B. The short-term atmospheric conditions over minutes to days.
• C. The total solar radiation reaching Earth.
• D. The exceptions to typical weather patterns.

Answer: (A)

Climate describes the long-term pattern of the atmosphere, captured by averages and the typical range of conditions computed over many years. Weather is the day-to-day state of the atmosphere, including short-term events, like today’s temperature, rain, or wind, lasting from minutes to days. So the best statement is that climate is the long-term average of weather over decades, because it smooths out everyday fluctuations and reveals the recurring patterns and trends in temperature, precipitation, and other variables. Total solar radiation is a driver of climate but not the definition, and exceptions to typical patterns are just anomalies, not what climate is.