London has a temperate climate with regular but generally light precipitation throughout the year. The warmest month is July, with an average temperature range at Greenwich of 13.6 °C-22.8 °C (56.5–73.0 °F). The coolest month is January, averaging 2.4 °C-7.9 °C (35.6–46.2 °F). Average annual precipitation is 583.6 mm (22.98 inches), with February on average the driest month. Snow is uncommon, particularly because heat from the urban area can make London 5 °C hotter than the surrounding areas in winter.
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