Average monthly rainfall in selected cities of varying climate zones 1970-2000

Of the various climate zones the world is divided into, tropical rainforest areas generally experience the highest levels of rainfall, while deserts experience the lowest. Of the examples given, Manaus in the Amazon rainforest experienced the highest average rainfall in 11 months of the year, with a range between 68mm in August to 310mm in April. However, the example with the largest relative variation between seasons is the shrubland, which ranged from an average of 4mm in July to 156mm in January. In Cairo, in Egypt's Western Desert, monthly rainfall in all summer months was less than one millimeter.