Weather and Climate

“Weather and Climate are essential concepts in understanding atmospheric conditions affecting Earth.”

Definitions

  • Weather: The day-to-day state of the atmosphere at a particular place and time, including temperature, humidity, precipitation, wind, and visibility.
  • Climate: The average weather conditions of a place over a long period (typically 30 years or more).

Difference Between Weather and Climate

Aspect Weather Climate
Time Frame Short-term (hours to days) Long-term (years to decades)
Focus Current atmospheric conditions Average atmospheric conditions
Variability Highly variable Relatively stable
Prediction Forecasted for short period Describes general patterns/trends

Factors Affecting Weather and Climate

  • Latitude: Determines solar radiation intensity.
  • Altitude: Temperature decreases with height.
  • Distance from Sea: Coastal areas have moderate climate; inland areas experience extremes.
  • Ocean Currents: Warm and cold currents affect temperature and rainfall.
  • Topography: Mountains influence rainfall and wind patterns.
  • Vegetation: Forests affect humidity and rainfall.
  • Human Activities: Urbanization, pollution affect local climate.

Visual Comparison

Weather

  • Short-term atmospheric conditions
  • Temperature, humidity, precipitation
  • Changes hourly or daily
  • Unpredictable in long term
  • Used for daily forecasts

Climate

  • Long-term average weather
  • Patterns over decades
  • Relatively stable
  • Determines ecosystems
  • Used in planning and agriculture

Previous Year Questions

  • SSC CGL 2020: Define weather.
  • The day-to-day atmospheric conditions of a place.
  • RRB NTPC 2019: What is climate?
  • The average weather condition over a long period.
  • SSC MTS 2018: Which factor affects climate by controlling solar radiation?
  • Latitude
  • HSSC CET 2021: How does altitude affect temperature?
  • Temperature decreases with increase in altitude.
  • SSC CGL 2019: Why coastal areas have moderate climate?
  • Because of the moderating effect of the sea.
  • RRB Group D 2020: Name a human activity that affects climate.
  • Urbanization or Pollution
  • SSC GD 2017: What is the main difference between weather and climate?
  • Weather is short term; climate is long term.
  • HSSC JE 2018: List two factors affecting weather.
  • Temperature and humidity
  • SSC CHSL 2019: How do ocean currents affect climate?
  • They bring warm or cold temperatures affecting rainfall and temperature.
  • RRB ALP 2020: What role do mountains play in climate?
  • They influence rainfall and create rain shadows.
  • SSC MTS 2017: Define humidity.
  • The amount of water vapor in the air.
  • HSSC CET 2019: What is the significance of climate in agriculture?
  • Climate determines crop types and growing seasons.
  • SSC CGL 2018: How does vegetation affect local climate?
  • Vegetation increases humidity and affects temperature.
  • RRB NTPC 2017: What is the impact of pollution on climate?
  • Pollution contributes to climate change and global warming.
  • SSC JE 2019: Which factor moderates temperature in coastal regions?
  • Sea breeze and ocean currents.
  • HSSC GD 2018: What causes the variability of weather?
  • Rapid changes in atmospheric conditions.
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