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Geography · Grades 5–8

Weather records and climate comparisons

Weather describes conditions at a place and time; climate concerns patterns over longer periods.

Make a worksheet

Understand the idea

Different timescales

Weather describes conditions at a place and time; climate concerns patterns over longer periods.

Compare like with like

Use consistent dates, units and measurement methods.

Do not overclaim

One unusual day does not establish a long-term trend.

Worked examples

Which statement describes weather?

It concerns a short-term local condition.

It rained here this morning.

Temperatures at noon are 12, 15, 18 and 15 °C. Find their mean in °C.

The sum is 60; 60/4 = 15.

15

Try it yourself

  1. Which dataset is more suitable for comparing long-term rainfall patterns?

    1. A guess based on the town's name
    2. Consistent records covering many years
    3. A single photograph
    4. One wet afternoon

  2. Why does one cold day not by itself disprove a long-term warming trend?

  3. Rainfall totals are 4 mm on Monday, 0 mm on Tuesday and 9 mm on Wednesday. Find the three-day total in mm.

  4. Which unit is suitable for a rain gauge reading?

    1. millimetres
    2. degrees Celsius
    3. kilograms per hour
    4. degrees longitude

Answers and marking notes

Answers and marking notes
  1. Consistent records covering many years

    Climate comparisons need longer consistent records.

  2. Short-term variability can occur within a longer pattern; the timescales differ.

    Credit the distinction between one observation and a trend.

  3. 13

    4 + 0 + 9 = 13.

  4. millimetres

    Rainfall depth is commonly expressed in millimetres.

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