Avignon has a hot-summer mediterranean climate (Köppen climate classification: Csa), though the dry-summer effect is not as strong as coastal locations like Marseille due to its more sheltered inland location. With mild-cool winters and hot summers, with moderate rainfall year-round. July and August are the hottest months with average daily maximum temperatures of around 28 °C, and January and February the coldest with average daily maximum temperatures of around 9 °C. The wettest month is September, with a rain average of 102 millimetres, and the driest month is July, when the monthly average rainfall is 37 millimetres. The city is often subject to windy weather; the strongest wind is the mistral. A medieval Latin proverb said of the city: "Avenie ventosa, sine vento venenosa, cum vento fastidiosa" (Windy Avignon, pest-ridden when there is no wind, wind-pestered when there is).