<Tr> <Td_colspan="12"> Average max. and min . temperatures in ° F </Td> </Tr> <Tr> <Td_colspan="12"> Precipitation totals in inches </Td> </Tr> <P> Christchurch has a temperate Oceanic climate with a mild summer, cool winter, and regular moderate rainfall . It has mean daily maximum air temperatures of 22.5 ° C (73 ° F) in January and 11.3 ° C (52 ° F) in July . Under the Köppen climate classification, Christchurch has an oceanic climate (Cfb). Summer in the city is mostly warm but is often moderated by a sea breeze from the Northeast . A record temperature of 41.6 ° C (107 ° F) was reached in February 1973 . A notable feature of the weather is the nor'wester, a hot föhn wind that occasionally reaches storm force, causing widespread minor damage to property . Like many cities, Christchurch experiences an urban heat island effect; temperatures are slightly higher within the inner city regions compared to the surrounding countryside . </P> <P> In winter it is common for the temperature to fall below 0 ° C (32 ° F) at night . There are on average 80 days of ground frost per year . Snowfalls occur on average three times per year, although in some years no snowfall is recorded . The coldest temperature recorded was − 7.1 ° C (19 ° F) on 18 July 1945, the third lowest recorded temperature of New Zealand's major cities . </P>

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