Dubai has a hot arid climate. Summers in Dubai are extremely hot, windy and dry, with an average high around 40 °C (104 °F) and overnight lows around 30 °C (86 °F). Most days are sunny throughout the year. Winters are cool and short with an average high of 23 °C (73 °F) and overnight lows of 14 °C (57 °F). Precipitation, however, has been increasing in the last few decades with accumulated rain reaching 150 mm (5.91 in) per year.