Auckland has a warm-temperate climate, with warm, humid summers and mild, damp winters. 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 in February, and 14.5 °C in July, the absolute maximum recorded temperature is 32.4 °C while the absolute minimum is -2.5. 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 in west Auckland.
On 27 July 1939 Auckland received its only recorded snowfall.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. car ownership rates are very high and emissions controls relatively weak, Auckland suffers from some air pollution, especially in regards to fine particles emissions. There are also regular 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.