Auckland has a warm-temperate climate, with warm, humid summers and mild, damp winters. Under K�ppen's climate classification, the city has an oceanic climate. It is the warmest main centre of New Zealand and is also one of the sunniest, with an average of 2060 sunshine hours per annum. The average daily maximum temperature is 23.7 �C (74.7�F) in February and 14.5�C (58.1�F) in July. The absolute maximum recorded temperature is 34.4 �C (93.9 �F), while the absolute minimum is ?0.6 �C (30.9 �F). High levels of rainfall occur almost year-round with an average of 1240 mm per year spread over 137 'rain days'. Climatic conditions vary in different parts of the city owing to geography such as hills, land cover and distance from the sea, hence unofficial temperature records exist, such as a maximum of 34�C (93.2�F) in West Auckland. Snowfall in Auckland is extremely rare; recorded instances include 27 July 1939 and 15 August 2011, although without any accumulation.
The early morning calm on the isthmus during settled weather, before the sea breeze rises, was described as early as 1853: "In all seasons, the beauty of the day is in the early morning. At that time, generally, a solemn stillness holds, and a perfect calm prevails..."Many Aucklanders used this time of day to walk and run in parks.
Auckland occasionally suffers from air pollution due to fine particle emissions. There are also occasional breaches of guideline levels of carbon monoxide. While maritime winds normally disperse the pollution relatively quickly it can sometimes become visible as smog, especially on calm winter days. Precipitation is relatively abundant all year round, but peaks marginally in winter
