- The difference of the mean monthly temperature of January and July at a place is known as annual range of temperature.
- The highest range of temperature is recorded in sub polar region in Siberia where average range of temperature is up to 64oC.
- The southern hemisphere on the other hand produces relatively little annual range in mean temperature.
- This because of the fact that northern hemisphere have larger land area while it is comparatively very less in southern hemisphere hence temperature range is moderate.
Remember that annual range of temperature at a place is dependent on how far the place is from the ocean and latitude. Lesser the maritime effect, higher is the annual range i.e. difference between the mean highest and mean lowest temperature.
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