- Define and explain Reading Climate Graphs in your own words
- Use key terms such as latitude accurately
- Apply what you have learned to new examples and questions
- Avoid the common mistakes learners make with this topic
This lesson focuses on Reading Climate Graphs: interpret temperature lines and rainfall bars to describe a place's climate.
Interpret temperature lines and rainfall bars to describe a place's climate.
Key ideas
Five factors shape a climate
Latitude decides how directly the Sun's rays hit; altitude cools the air as you climb; distance from the sea brings milder, wetter weather near coasts and more extreme temperatures inland; prevailing winds carry warm or cold, wet or dry air; and ocean currents, like the warm North Atlantic Drift, can heat or cool coastlines.
The greenhouse effect is natural — humans are strengthening it
Gases such as carbon dioxide trap some of the Sun's heat, keeping Earth warm enough for life — without them the planet would freeze. Burning fossil fuels and cutting down forests add extra greenhouse gases, trapping more heat and warming the climate. That is why scientists distinguish the natural greenhouse effect from the enhanced one.
Key term — latitude: How far north or south of the equator a place is, measured in degrees — it is the biggest control on temperature.
On a climate graph, what do the bars and the line show?
Bars show monthly rainfall (mm); the line shows mean monthly temperature (°C).
Answer: Bars show monthly rainfall (mm); the line shows mean monthly temperature (°C).
- Reading rainfall bars as temperature On a climate graph, the bars are monthly rainfall and the line is temperature — mixing them up flips the whole interpretation.
- Saying 'today is cold, so climate change is wrong' One cold day is weather; climate change is about long-term global averages measured over decades. Local cold snaps still happen in a warming world.
Practice
The sea moderates temperatures, warming the coastal town in winter and cooling it in summer; inland places have more extreme continental climates.
The warm North Atlantic Drift and prevailing south-westerly winds bring warm, moist air to the UK.
Temperature falls with altitude because the air is thinner and under less pressure.
Natural: changes in solar output or volcanic eruptions. Human: burning fossil fuels, deforestation.
Quick check
Which of these best defines "latitude"?
Put these in order: condensation, precipitation, evaporation.
- Reading Climate Graphs: interpret temperature lines and rainfall bars to describe a place's climate.
- Five factors shape a climate: Latitude decides how directly the Sun's rays hit; altitude cools the air as you climb; distance from the sea brings milder, wetter weather near coasts and more extreme temperatures inland; prevailing winds carry warm or cold, wet or dry air; and ocean currents, like the warm North Atlantic Drift, can heat or cool coastlines.
- evaporation: When liquid water gains heat energy and turns into invisible water vapour, rising into the air.
- Watch out for: reading rainfall bars as temperature